Tag: Physics

📚 High-Frequency Exam Topics and Common Mistakes in Year 7 CCEA Physics | Year 7 CCEA 物理高频考点与易错题分析

This article brings together the most frequently assessed topics in Year 7 CCEA Physics and pinpoints the typical errors students make. Each section pairs an explanation of the key idea with a spotlight on common misconceptions and how to overcome them. Use this guide alongside your class notes to strengthen your understanding and avoid losing marks in tests.

本文汇总了 Year 7 CCEA 物理最常见的高频考点，并指出学生容易出错的地方。每个小节都会讲解核心概念，同时聚焦常见的错误思维以及如何纠正。请将这份指南与课堂笔记配合使用，加深理解，避免在考试中失分。

1. Forces and Friction | 力与摩擦

Forces are pushes or pulls measured in newtons (N). When forces on an object are balanced, the object stays at rest or moves at constant speed. Friction is a force that opposes motion between surfaces and always acts in the opposite direction to the movement or attempted movement. A common mistake is thinking friction always acts backwards relative to the ground. In fact, friction can drive motion – when you walk or a car accelerates, the friction from the ground pushes you forwards.

力是推或拉，单位是牛顿 (N)。当物体受到的力平衡时，它会保持静止或匀速直线运动。摩擦力是接触面之间阻碍运动的力，方向总与相对运动或运动趋势的方向相反。常见错误是以为摩擦力总是相对于地面向后。实际上摩擦力可以驱动运动——当你走路或汽车加速时，来自地面的摩擦力恰恰把你向前推。

Typical mistake: ‘If I stop pushing a box, friction disappears.’
Correction: Friction is still present as long as the surfaces are in contact; it slows the box down but does not vanish.

典型错误：“如果我不再推箱子，摩擦力就消失了。”
纠正：只要接触面还在，摩擦力就存在；它让箱子减速，但不会凭空消失。

2. Mass and Weight | 质量与重量

Mass is the amount of matter in an object and is measured in kilograms (kg). It does not change with location. Weight is the force of gravity pulling on the mass, measured in newtons (N). Weight depends on the gravitational field strength g. On Earth g ≈ 10 N/kg, so a 1 kg mass weighs 10 N.

质量是物体所含物质的多少，单位是千克 (kg)，不随位置改变。重量是地球（或其他星球）对物体的引力，单位是牛顿 (N)。重量取决于引力场强度 g。在地球表面 g ≈ 10 N/kg，所以质量为 1 kg 的物体重 10 N。

weight (N) = mass (kg) × gravitational field strength (N/kg)

W = m × g

A frequent error is using ‘weight’ and ‘mass’ as if they are the same. In everyday language we say ‘I weigh 50 kg’, but in physics that is your mass. Examiners will mark you down if you confuse kg with N.

常见错误是把“重量”和“质量”当成一个概念。生活中我们说“我重50公斤”，但在物理上那指的是质量。如果混淆 kg 和 N，考官会扣分。

Exam tip: If a question asks for weight, the answer must be in newtons. If the question provides mass in kg and asks for weight on Earth, multiply by 10.

应试建议：如果题目问重量，答案必须有单位牛顿。若题目给出质量（kg）并要求计算地球上的重量，乘以 10 即可。

3. Gravity and Weight on Different Planets | 不同星球上的重力与重量

Gravity is a force that attracts all objects with mass. The strength of gravity differs on other planets and moons. The Moon’s gravitational field strength is about 1.6 N/kg, so a 10 kg object weighs only 16 N on the Moon. Mass stays the same wherever you are. Students often wrongly claim that an astronaut’s mass decreases on the Moon because they ‘float’. The floating sensation comes from the weaker gravitational pull, not from a loss of mass.

重力是吸引所有有质量物体的力。不同行星和卫星上的重力强度不同。月球的引力场强度大约为 1.6 N/kg，所以一个 10 kg 的物体在月球上只重 16 N。无论在哪里，质量都保持不变。学生常误以为宇航员在月球上质量变小了，因为他们“飘起来”。实际上漂浮感来自引力变小，而不是质量减少。

Common misconception: ‘On the Moon my weight is zero.’
Reality: Weight is smaller but never zero; true weightlessness occurs only when g = 0, which is far from any large mass.

常见误区：“在月球上我的重量为零。”
实际情况：重量减小但绝不为零；真正的失重只会发生在 g = 0 的地方，远离任何大质量天体。

4. Calculating Speed | 速度计算

Speed is the distance travelled per unit time. The average speed of an object can be found using the equation:

速度是单位时间内通过的距离。物体的平均速度可用公式计算：

average speed = total distance ÷ total time

s = d / t

The units commonly used are metres per second (m/s) or kilometres per hour (km/h). A typical Year 7 exam question might ask: ‘A cyclist travels 300 m in 60 s. What is her speed?’ Correct answer: 5 m/s. A frequent mistake is to mix units – for example, dividing metres by minutes without converting to seconds. Another error is thinking that average speed means adding the speeds at different stages and dividing by the number of stages; that only works if each stage lasts the same amount of time.

常用单位是米每秒 (m/s) 或千米每小时 (km/h)。Year 7 考试中常见题型：“一位自行车手在 60 s 内行驶 300 m，她的速度是多少？”正确答案：5 m/s。常见错误是混淆单位——比如用米除以分钟却不换算成秒。另一个错误是以为平均速度就是把各段速度相加再除以段数；这种方法仅在各段时间相等时才成立。

Quick check: Always write the unit after the number. If distance is in km and time in h, speed is in km/h; if distance is in m and time in s, speed is in m/s.

检查小贴士：数字后务必带上单位。如果距离用 km，时间用 h，则速度单位是 km/h；如果用 m 和 s，则速度单位是 m/s。

5. Energy Stores and Transfers | 能量的储存与转移

Energy is stored in different ways: kinetic (movement), thermal (heat), chemical (fuel, food), gravitational potential (height), elastic potential (stretched spring), nuclear, electrostatic and magnetic. Energy can be transferred from one store to another through four main pathways: mechanical work (a force moving an object), electrical work (charges moving), heating (temperature difference) and radiation (light and sound).

能量以不同方式储存：动能（运动）、热能、化学能（燃料、食物）、重力势能（高度）、弹性势能（拉伸的弹簧）、核能、静电势能和磁能。能量可以通过四种主要途径从一个储存转移到另一个：机械做功（力使物体移动）、电功（电荷移动）、加热（温差）和辐射（光和声）。

A very common mistake is saying ‘energy is used up’ or ‘energy disappears’. Energy is always conserved; it is transferred to less useful thermal stores, often making the surroundings warmer. Sankey diagrams show how much of the input energy is useful and how much is wasted.

一个非常普遍的错误是说“能量用完了”或“能量消失了”。能量总是守恒的；它只是转移到了不太有用的热能储存，通常使环境变暖。桑基图能展示输入能量中有多少是有用的，多少被浪费了。

Mistake to avoid: ‘The light bulb uses up electricity.’
Correct thinking: The bulb transfers electrical energy into light and heat; the total energy before and after is the same.

避免的错误：“灯泡用掉了电。”
正确思维：灯泡把电能转化为光能和热能；转化前后总能量相等。

6. Renewable and Non-renewable Energy | 可再生能源与不可再生能源

Non-renewable resources, such as coal, oil and natural gas, are fossil fuels formed over millions of years and will eventually run out. Burning them releases carbon dioxide and other pollutants. Renewable resources – wind, solar, tidal, hydroelectric, wave and biomass – can be replenished naturally in a short time. In CCEA exams, students often misclassify tidal and wave energy: tidal power harnesses the rise and fall of sea levels caused by the Moon’s gravity; wave power captures the motion of surface water driven by wind.

不可再生资源，如煤、石油和天然气，是经过数百万年形成的化石燃料，终将耗尽。燃烧它们会释放二氧化碳和其他污染物。可再生能源——风能、太阳能、潮汐能、水力、波浪能和生物质能——可在较短时间内自然补充。在 CCEA 考试中，学生常常混淆潮汐能和波浪能：潮汐能利用月球引力引起的海面升降；波浪能则捕获由风驱动的水面运动。

Another error is believing that renewable sources always have zero environmental impact. Manufacturing turbines or solar panels uses energy and materials, and building dams can disrupt habitats. The key advantage is that the energy source itself does not run out during operation.

另一个错误是认为可再生能源完全对环境无害。制造风力涡轮和太阳能板需要消耗能源和材料，修建水坝也可能破坏栖息地。其主要优势在于运行时能量来源本身不会枯竭。

7. Electric Circuits and Current | 电路与电流

An electric circuit must be complete (closed) for current to flow. Current is the flow of electric charge, measured in amperes (A). In a series circuit, the current is the same at all points because there is only one path. A common Year 7 misconception is that current gets ‘used up’ by components like bulbs, so less current returns to the battery. In reality, the current value is identical before and after the bulb; the bulb transforms electrical energy into light and heat, but the charge carriers keep moving.

电路必须闭合才能有电流。电流是电荷的流动，单位是安培 (A)。在串联电路中，所有位置的电流都相等，因为只有一条路径。Year 7 学生普遍存在一个误区，认为电流被灯泡等元件“用掉”了，回到电池的电流变小。实际上灯泡前后的电流大小完全相同；灯泡将电能转化为光能和热能，但电荷载流子继续前进。

Use a rope-loop model: pulling the rope makes all parts move at the same rate. Similarly, the current is the same everywhere in a series loop.

可以借助绳圈模型：拉动绳圈时，所有部分都以相同速率移动。同样地，串联回路中各处电流都相同。

Exam trap: ‘If another bulb is added in series, the current increases.’
Correct statement: Adding bulbs in series increases resistance, so the current decreases.

考试陷阱：“如果串联一个灯泡，电流会增大。”
正确表述：串联更多灯泡会增加电阻，导致电流减小。

8. Conductors and Insulators | 导体与绝缘体

Materials that allow electricity to flow easily are called electrical conductors; those that do not are insulators. Metals are good conductors because they have free electrons, while graphite (a form of carbon) is a notable non-metal conductor. Common exam questions ask students to test whether a material conducts by inserting it into a simple circuit with a bulb or ammeter. A widespread mistake is believing that pure water conducts electricity well. Pure water is actually a very poor conductor; it is dissolved salts and impurities in tap water or seawater that make them conduct.

能轻易让电流通过的材料叫导体，反之叫绝缘体。金属是良好的导体，因为它们有自由电子；而石墨（碳的一种形态）是一种重要的非金属导体。常见考题是让学生将一个材料接入含灯泡或电流表的简单电路，以测试其导电性。一个广泛存在的错误是以为纯水容易导电。事实上纯水导电性极差；让自来水或海水导电的是溶解其中的盐分和杂质。

The human body conducts electricity because it contains water and salts, so electricity can pass through us. This is why we must be careful around electrical appliances.

人体可以导电，因为体内含有水分和盐分，所以电流能够通过。这正是我们在用电器旁要小心的原因。

9. Magnets and Magnetic Fields | 磁铁与磁场

Magnets have a north pole and a south pole. Like poles repel, unlike poles attract. The magnetic field is the region around a magnet where magnetic forces can be felt. Field lines point from north to south outside the magnet. Earth itself acts like a giant magnet, which is why a freely suspended magnet aligns itself roughly north-south. A typical error: thinking that the Earth’s geographic north pole is a magnetic north pole. In fact, the Earth’s magnetic south pole is near the geographic north, which is why a compass north pole points towards geographic north.

磁铁有北极和南极。同名磁极相互排斥，异名磁极相互吸引。磁场是磁体周围能感受到磁力的区域。磁铁外部，磁感线从北极指向南极。地球本身就像一个巨大的磁铁，所以自由悬挂的磁铁会大致指向南北方向。常见错误：以为地理北极就是磁北极。实际上，地球的磁南极位于地理北极附近，这正是指南针的北极指向地理北方的原因。

Magnetic materials like iron, nickel and cobalt are attracted to magnets but do not have to be magnets themselves. Only magnets have both north and south poles.

像铁、镍、钴这样的磁性材料能被磁铁吸引，但它们本身不一定是磁铁。只有磁体才同时拥有南极和北极。

10. The Particle Model and States of Matter | 粒子模型与物质状态

The particle model describes solids, liquids and gases in terms of tiny particles. In solids, particles are packed closely in a fixed arrangement and can only vibrate. In liquids, they are close but can slide past each other. In gases, particles are far apart and move quickly in all directions. State changes such as melting, boiling and condensing occur when energy is added or removed. A critical mistake is confusing ‘particles expand’ with ‘spaces between particles increase’. When a substance is heated, the particles themselves do not grow larger; instead, they vibrate more and move further apart, so the material expands.

粒子模型用微小粒子描述固体、液体和气体。固体中，粒子紧密排列在固定位置，只能振动；液体中，粒子彼此靠近但可以相互滑动；气体中，粒子距离很远，向各个方向快速运动。熔化、沸腾和冷凝等状态变化发生在能量增加或减少时。一个关键错误是混淆“粒子膨胀”和“粒子间距增大”。当物质受热时，粒子本身不会变大；它们只是振动得更剧烈，彼此远离，所以材料膨胀。

During melting, the temperature stays constant until all the solid has become liquid. Many pupils are surprised by this plateau on a heating graph, expecting the temperature to rise continuously.

在熔化过程中，温度保持不变，直到所有固体都变成液体。许多学生对加热曲线上的平台感到意外，以为温度会一直上升。

11. Sound and Hearing | 声音与听觉

Sound is produced by vibrations and travels as longitudinal waves. It needs a medium (solid, liquid or gas) to travel; sound cannot travel through a vacuum. The pitch of a sound depends on the frequency of the vibration, and the loudness depends on the amplitude. A frequent confusion is equating high pitch with loud volume. A high-pitched whistle can be quiet, while a low drum beat can be very loud. In CCEA tests, students may be asked to draw oscilloscope traces: a taller wave represents a louder sound, and more waves packed into the same time means a higher pitch.

声音由振动产生，以纵波形式传播。它需要介质（固体、液体或气体）传播，不能在真空中传播。音调高低取决于振动频率，响度取决于振幅。常见的混淆是把高音调等同于大音量。尖细的哨声可以很轻，低沉的鼓声可以非常响。在 CCEA 考试中，可能要求学生画出示波器波形：波形越高表示声音越响，同样时间内波形越密集表示音调越高。

Classic error: ‘If the sound is loud, the frequency must be high.’ Correct this by testing with a microphone and oscilloscope: you can see independent changes in amplitude and frequency.

经典错误：“声音大了，频率就一定高。”通过话筒和示波器实验可以纠正：振幅和频率是独立变化的。

12. Light and Reflection | 光的反射

Light travels in straight lines. When it hits a smooth surface, it reflects according to the law of reflection: the angle of incidence (i) equals the angle of reflection (r), both measured from the normal (an imaginary line perpendicular to the surface at the point of incidence). Many students mess up by measuring angles from the mirror surface instead of the normal. Always draw and label the normal before measuring angles.

光线沿直线传播。当它遇到光滑表面时，会按照反射定律反射：入射角 (i) 等于反射角 (r)，两者都从法线（垂直于入射点的假想线）量起。许多学生犯的错误是从镜面量角，而不是从法线量。测量角度前一定要先画出并标出法线。

Rough surfaces cause diffuse reflection, scattering light in many directions. A common myth is that diffuse reflection does not obey the law of reflection. In reality, each individual ray still obeys the law, but because the surface is uneven, the normals point in different directions, so the reflected rays are scattered.

粗糙表面会发生漫反射，把光线散射向各个方向。一个流传很广的错误说法是漫反射不遵守反射定律。实际上，每一条光线仍然遵从反射定律，只是因为表面不平，各处的法线指向不同方向，导致反射光线散开。

Plane mirror images are virtual, upright, laterally inverted and the same size as the object. They appear to be as far behind the mirror as the object is in front.

平面镜成像是虚像、正立、左右颠倒且与物体等大。像到镜面的距离等于物体到镜面的距离。

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📚 Year 7 CCEA Physics: Exam Techniques and Mark Schemes | Year 7 CCEA 物理：答题技巧与评分标准

This guide explores the key exam techniques and mark scheme principles for Year 7 CCEA Physics. Understanding how answers are assessed, how to structure responses, and how to avoid common errors can significantly boost your performance. We will break down command words, calculation requirements, graph skills, and practical-based questions, ensuring you know exactly what examiners look for when awarding marks.

本指南探讨 Year 7 CCEA 物理考试的关键答题技巧和评分标准原则。了解答案如何被评估、如何组织回答以及如何避免常见错误，能显著提升你的成绩。我们将详细分析指令词、计算题要求、图表技能以及基于实验的题目，确保你清楚考官在给分时究竟看重什么。

1. Understanding Command Words | 理解指令词

In CCEA Physics papers, the command word at the start of a question tells you exactly what to do. Words like ‘state’, ‘describe’, ‘explain’, and ‘calculate’ have very different expectations. ‘State’ means a short, factual answer without reasoning; ‘describe’ asks you to give details of what happens or what you observe; ‘explain’ requires a scientific reason, often using ‘because’; ‘calculate’ expects a numerical answer with working shown. Getting these wrong is one of the fastest ways to lose marks.

在 CCEA 物理试卷中，问题开头的指令词明确告诉你需要做什么。像 ‘state’（陈述）、’describe’（描述）、’explain’（解释）和 ‘calculate’（计算）这些词有着截然不同的要求。’State’ 意味着给出简短的事实性回答，无需给出理由；’describe’ 要求你详细叙述发生了什么事或观察到什么现象；’explain’ 需要用 ‘because’ 等给出科学理由；’calculate’ 则要求给出数值答案并展示计算过程。混淆这些指令词是最容易失分的方式之一。

For example, if asked ‘State what is meant by a conductor,’ simply writing ‘A material that allows electricity to flow through it’ earns the mark. If asked ‘Explain why metals are good conductors,’ you need to mention free electrons that can move and carry charge through the metal. Always circle the command word before you start writing.

例如，如果被要求 ‘State what is meant by a conductor’（陈述导体是什么），只需写 ‘一种允许电流通过的材料’ 就能得分。如果被要求 ‘Explain why metals are good conductors’（解释为什么金属是良导体），你就需要提到金属内部存在可以自由移动并携带电荷的自由电子。始终在开始作答前圈出指令词。

2. Reading the Question with Precision | 精确审题

Many marks are lost simply because students misread what the question is asking. Look carefully at all the information provided, including diagrams, tables, and graphs. Underline key terms such as ‘not’, ‘increase’, ‘decrease’, ‘mass’, or ‘distance’. If a question asks for the ‘total resistance’, be sure you read the circuit correctly and don’t just supply the value of one resistor. Physics questions often embed data that must be extracted from a text or a results table.

许多失分仅仅是因为学生误读了题目要求。仔细查看所有给出的信息，包括示意图、表格和图表。在关键术语下划线，例如 ‘not’（不）、’increase’（增加）、’decrease’（减少）、’mass’（质量）或 ‘distance’（距离）。如果题目问的是 ‘总电阻’，务必正确读图，不要只给出某一个电阻的阻值。物理问题经常将需要提取的数据隐藏在文字描述或结果表格中。

When a question contains a graph or a diagram of an experiment setup, read the axes labels and notice the units. A common trap is to miss that the time axis is in minutes while the question asks for an answer in seconds. Always double-check the units requested, and if a value is given in cm but formula expects m, convert first.

当题目中包含图表或实验装置图时，要读懂坐标轴标签并注意单位。一个常见的陷阱是没注意到时间轴的单位是分钟，而问题要求以秒为单位作答。务必再次核对题目要求的单位，如果给出的数值以 cm 为单位而公式要求以 m 为单位，必须先进行换算。

3. Showing Full Working in Calculations | 展示完整的计算过程

In Year 7 Physics, calculations typically involve simple equations such as speed = distance ÷ time, weight = mass × gravitational field strength, or pressure = force ÷ area. CCEA mark schemes award marks for correct working even if the final answer is wrong. This means you should always write down the formula, substitute the numbers with units, and then calculate the result step by step.

在 Year 7 物理中，计算通常涉及简单公式，如 speed = distance ÷ time（速度 = 距离 ÷ 时间）、weight = mass × gravitational field strength（重量 = 质量 × 重力场强度）或 pressure = force ÷ area（压强 = 力 ÷ 面积）。CCEA 评分方案会在最终答案错误的情况下依然给正确的演算步骤赋分。这意味着你应该始终写下公式，代入带有单位的数值，然后一步一步地计算出结果。

For example, to find the speed of a car that travels 200 m in 40 s, do not just write 5 m/s. Instead, show:

例如，求一辆在 40 s 内行驶 200 m 的汽车的速度时，不要只写 5 m/s。应该展示：

speed = distance ÷ time = 200 m ÷ 40 s = 5 m/s

If you make a calculator error but the substitution is correct, you can still pick up most of the marks. Also, always include the correct unit; a numerical answer without a unit may lose the final answer mark unless the unit is printed on the answer line.

如果你在计算时按错了键，但代入步骤正确，你仍然可以获得大部分分数。此外，始终要写对单位；不带单位的数值答案可能会丢失最后的答案分，除非答题线上已经印好了单位。

4. Mastering Units and Conversions | 掌握单位与换算

Physics is a quantitative subject, and units matter. Common units in Year 7 include metre (m), kilogram (kg), second (s), newton (N), joule (J), and degree Celsius (°C). You are expected to know the standard prefixes kilo (k = 1000), centi (c = 1/100), and milli (m = 1/1000). A typical trap is a distance given in km and a time in minutes, while the formula needs m and s. Convert first: 3 km = 3000 m; 2 minutes = 120 s.

物理是一门定量的学科，单位至关重要。Year 7 中常见的单位包括米 (m)、千克 (kg)、秒 (s)、牛顿 (N)、焦耳 (J) 和摄氏度 (°C)。你需要了解标准前缀：千 (k = 1000)、厘 (c = 1/100) 和毫 (m = 1/1000)。一个典型的陷阱是题目给出的距离单位是 km、时间是分钟，而公式需要的是 m 和 s。必须先换算：3 km = 3000 m；2 minutes = 120 s。

The mark scheme often has separate marks for the conversion and for the unit. Even if the calculation is not asked for directly, describing data from a table must include the correct unit. For instance, ‘The mass increased from 0.2 kg to 1.5 kg.’ A statement without units may not be credited in a ‘describe the trend’ question.

评分方案通常会给换算和单位分别赋分。即使题目没有直接要求计算，描述表格中的数据时也必须包含正确单位。例如，’质量从 0.2 kg 增加到了 1.5 kg。’ 在 ‘描述趋势’ 的问题中，不带单位的陈述可能不会得分。

5. Drawing and Labelling Graphs Accurately | 精确绘制并标注图表

Graph work is a core skill. You may be asked to plot points, draw a line of best fit, and read values. Always use a sharp pencil and a ruler for straight lines. The independent variable (the one you change) goes on the x-axis; the dependent variable (the one you measure) goes on the y-axis. Axes must be labelled with the quantity and unit, e.g. ‘Time (s)’.

图表处理是一项核心技能。你可能会被要求标记点、画出最佳拟合线以及读取数值。始终使用削尖的铅笔和直尺画直线。自变量（你改变的量）放在 x 轴上；因变量（你测量的量）放在 y 轴上。坐标轴必须标注数量和单位，例如 ‘Time (s)’。

Scales should be even and use most of the grid. A line of best fit can be straight or curved, and it must follow the trend of the points, not necessarily pass through every dot. When reading a value from the graph, draw construction lines with a dashed line and show how you obtain the reading; these construction lines can earn marks even if the final value is slightly misread.

刻度应该均匀且占据大部分网格。最佳拟合线可以是直线也可以是曲线，它必须服从点的趋势，不一定经过每一个点。从图表上读取数值时，请用虚线画出辅助线并展示你是如何得到读数的；这些辅助线哪怕在最终数值稍有偏差的情况下也能获得分数。

6. Structuring Practical-Based Questions | 组织实验类问题的答案

Physics questions about experiments often ask you to ‘describe how to investigate’ something. Your answer should include the key equipment, the steps in a logical order, the measurements you take, how you make it a fair test, and any safety precautions. For instance, investigating how the length of a pendulum affects its period: you need a clamp stand, string, a mass, a stopwatch, and a ruler. You must mention that you keep the mass and release angle the same each time while changing only the length.

关于实验的物理问题常会要求你 ‘describe how to investigate’（描述如何探究）某个内容。你的回答应当包括关键器材、逻辑清晰的步骤、你将进行哪些测量、如何确保公平测试以及任何安全注意事项。例如，探究摆的长度如何影响其周期：你需要铁架台、细绳、摆锤、秒表和直尺。你必须提到每次实验时保持质量和释放角度相同，只改变长度。

CCEA mark schemes give marks for mentioning control variables explicitly. Simply saying ‘keep everything else the same’ is not precise enough; name the specific variables. For a pendulum, declare ‘the mass of the bob is kept at 100 g and the angle of release is 10° each time.’ Also state that you repeat each length three times to calculate an average time, which increases accuracy.

CCEA 评分方案会对明确提及控制变量而给分。仅仅说 ‘保持其他所有条件相同’ 是不够准确的；要说出具体的变量。对于摆的实验，要声明 ‘摆锤的质量始终保持在 100 g，每次释放角度为 10°。’ 还要说明你对每个长度重复测量三次以计算平均时间，这能提高准确度。

7. Explaining Scientific Ideas Clearly | 清晰地解释科学概念

When an ‘explain’ question appears, the examiner wants to see a cause-and-effect link using precise scientific vocabulary. For example, ‘Explain why the pressure in a tyre increases on a hot day.’ A one-word answer or a vague statement will not score full marks. You need to state that air particles gain kinetic energy, move faster, and hit the tyre walls more often and with greater force, which increases pressure.

当出现 ‘explain’（解释）类问题时，考官希望看到使用准确科学词汇的因果关系链接。例如，’解释为什么热天轮胎内的压力会增大。’ 一个词的回答或模糊的陈述不会得到满分。你需要说明空气粒子获得了动能，运动速度更快，更频繁且更有力地撞击轮胎壁，从而导致压力增大。

Use linking phrases such as ‘this means that…’ or ‘as a result…’ to connect the steps. Even if your language is simple, the logical order of particles → more collisions → higher pressure is what earns the marks. Avoid writing everything as one long sentence without a clear chain of reasoning.

使用 ‘this means that…’ 或 ‘as a result…’ 等连接词将各个步骤串联起来。即便你的语言比较简单，从粒子 → 更多碰撞 → 更高压力的逻辑顺序才是得分的关键。避免把所有内容写成一个长句，而没有清晰的推理链条。

8. Managing Time and Question Order | 时间管理与答题顺序

A typical Year 7 CCEA Physics paper is designed to be completed within the allocated time, but many students spend too long on early questions. A good strategy is to skim the entire paper first and start with the questions you find easiest. This builds confidence and ensures you collect marks you are certain of. Then return to the trickier ones.

一份典型的 Year 7 CCEA 物理试卷设计为可在规定时间内完成，但许多学生在前面题目上花费了过多时间。一个不错的策略是先快速浏览整份试卷，从你觉得最简单的题目开始做起。这能帮你建立信心并确保拿到你有把握的分数。然后再回头处理较难的题目。

Pay attention to the mark allocation printed in brackets, e.g. [3]. This tells you how many distinct points you need to make. If a 2-mark question asks you to calculate speed, showing the formula and final correct answer with unit will get both marks. Do not write a whole paragraph for a 1-mark question; just give the concise fact they are asking for.

注意括号内印出的分值，例如 [3]。这提示了你需要给出多少个不同的得分点。如果一个 2 分的题目要求你计算速度，展示公式以及带单位的最终正确答案就能拿到这两分。不要为一个 1 分的题目写一整段话；只需给出题目所要求的简洁事实。

9. Common Mistakes and How Mark Schemes Penalise Them | 常见错误及评分标准如何扣分

Examiners see the same errors year after year. A classic one is confusion between mass and weight: mass is measured in kg, weight in N. Stating that a person’s weight is 50 kg is scientifically incorrect and will not earn the mark. Another is using non-scientific language, like saying ‘the electricity gets used up’ instead of ‘energy is transferred to the surroundings’.

考官每年都会看到同样的错误。一个经典错误是混淆质量与重量：质量的单位是 kg，重量的单位是 N。声称一个人的重量是 50 kg 在科学上是错误的，得不到分数。另一个错误是使用非科学语言，比如不说 ‘能量被转移到周围环境中’，而说 ‘电被用光了’。

In graph questions, not using a ruler for axes or a line of best fit, or choosing a scale that causes points to be squashed into one corner will lose presentation marks. Also, ignoring safety in a practical plan can cost you the ‘precautions’ mark. Always mention something like ‘wear safety goggles’ or ‘stand back after lighting the Bunsen burner’ when heat or glassware is involved.

在图表题中，不用直尺画坐标轴或最佳拟合线，或者选择了一个导致数据点挤在角落里无法展开的刻度，都会丧失卷面分。此外，在实验设计题中忽略安全性会使你丢掉 ‘安全预防措施’ 的分数。当涉及加热或玻璃器皿时，一定要提到 ‘佩戴护目镜’ 或 ‘点燃本生灯后向后退’ 等内容。

10. How Marks Are Awarded: Assessment Objectives | 分数如何评定：评估目标

CCEA mark schemes are based on Assessment Objectives. AO1 is about recall of knowledge, so straightforward facts and definitions score easily. AO2 is application: you need to use your knowledge in a given scenario. AO3 is analysis and evaluation, which often involves interpreting data or suggesting improvements to an experiment. Most Year 7 papers have a mixture, but the style of required answer changes.

CCEA 的评分方案基于评估目标。AO1 是关于知识回忆，所以直接的事实和定义很容易得分。AO2 是应用：你需要在给定的情境中运用你的知识。AO3 是分析与评估，通常涉及解读数据或对实验提出改进建议。大多数 Year 7 试卷都混合了这些类型，但所要求的答题风格各有不同。

When you see ‘suggest one way to improve the investigation’, the mark is for a specific improvement, like ‘use a data logger to measure the temperature instead of a thermometer’ rather than a generic ‘do the experiment better’. The mark scheme often accepts any sensible suggestion, so do not be afraid to write down your well-reasoned idea.

当你看到 ‘suggest one way to improve the investigation’（提出一种改进实验的方法）时，得分点在于具体的改进措施，比如 ‘使用数据记录仪代替温度计测量温度’，而不是笼统的 ‘把实验做得更好’。评分方案通常能接受任何合理的建议，所以不要害怕写下你经过深思熟虑的想法。

11. Using Diagrams to Boost Your Answer | 用图表为答案加分

If a question asks for a description of a circuit or a ray diagram, a clear labelled sketch can convey what words cannot. Use a pencil and annotate your diagram with labels like ‘ray of light’, ‘normal’, ‘angle of incidence’. Even in questions that do not explicitly ask for a diagram, you can sometimes include a small sketch to support your explanation, provided you also write the necessary text.

如果题目要求描述电路或光线图，一个清晰并带有标注的草图能够传达文字难以表述的信息。使用铅笔，并在图上标注 ‘光线’、’法线’、’入射角’ 等。即使题目没有明确要求画图，有时你也可以附带一个小草图来支持你的解释，前提是你也写出了必要的文字说明。

However, a diagram alone is rarely enough to gain full marks if the question demands an explanation. Use the diagram as a visual aid, but always refer to it in your writing. For example, ‘As shown in the diagram, the angle of reflection equals the angle of incidence.’ This integration shows the examiner you understand the link between the drawing and the physics.

然而，如果题目要求的是解释，仅靠一张图通常不足以拿到满分。将图作为视觉辅助，但始终要在文字中提及它。例如，’如图所示，反射角等于入射角。’ 这种图文结合的方式能向考官展示你理解了图示与物理原理之间的联系。

12. Final Review and the Mark Scheme Mindset | 最终检查与评分标准思维

Always reserve five minutes at the end to review your answers. Check you have not left any blank lines; even a guess based on what you recall might earn a mark, especially in multi-choice or short-answer sections. Verify your units, re-read command words, and ensure you have answered the question that was asked, not the one you thought it was.

始终在最后留出五分钟来检查你的答案。检查是否有空白行；即使是基于你印象的猜测也可能得分，尤其是在选择题或简答题部分。核对你的单位，重读指令词，确保你回答的是所问的问题，而不是你自认为的问题。

Adopting a mark-scheme mindset means thinking, ‘If I were marking this, what would I give a mark for?’ Every scientific keyword, every correct conversion, every displayed formula step is a potential mark. By consistently practicing past questions and comparing your answers to the official CCEA mark schemes, you will internalise the expected standard and approach your Physics exam with confidence.

培养评分标准思维就意味着要思考：’如果我是阅卷老师，我会因为什么给分？’ 每一个科学关键词、每一次正确的单位换算、每一个清晰展示的公式步骤都是一个潜在的得分点。通过持续练习历年真题，并将你的答案与 CCEA 官方评分标准进行对比，你将内化所要求的标准，并充满信心地面对你的物理考试。

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📚 In-Depth Analysis of Past Exam Papers for Year 7 CCEA Physics | Year 7 CCEA 物理：历年真题深度解析

This article provides a detailed breakdown of past Year 7 CCEA Physics exam paper trends, covering common question types, key topics, and frequent errors. By understanding exactly how examiners test fundamental concepts, students can sharpen their revision focus and enter the exam with greater confidence. We will explore forces, energy, electricity, waves, matter, Earth and space, practical skills, and data handling, linking each area to real past-paper style problems.

本文深度剖析 Year 7 CCEA 物理历年真题的命题规律，涵盖常见题型、核心知识点以及高频错误。学生通过理解出题人如何考查基本概念，可以精准聚焦复习方向，自信应考。我们将逐一探讨力、能量、电学、波、物质、地球与空间、实验技能和数据处理等板块，并将每个部分与真实的真题风格问题紧密结合。

1. Understanding the Exam Structure | 理解考试结构

Year 7 CCEA Physics papers usually include a mix of multiple‑choice questions, short‑answer structured items, simple calculations, and occasionally diagram‑drawing tasks. Marks are awarded not only for the final answer but also for showing clear working, stating correct units, and using scientific vocabulary accurately.

Year 7 CCEA 物理试卷通常包含选择题、简短结构化问答题、简单计算题，有时还要求画图。得分点不仅在于最终答案，清晰的过程、正确的单位以及准确使用科学词汇同样重要。

Past papers reveal that approximately 40% of the marks target knowledge recall, 30% application and calculation, and 30% practical and data‑handling skills. Knowing this split helps you balance your revision time.

历年试卷显示，约 40% 的分数考查知识记忆，30% 考查应用和计算，30% 考查实验与数据处理技能。了解这一比例有助于合理分配复习时间。

2. Forces and Motion: High‑Frequency Question Types | 力与运动：高频题型

A classic past‑paper question asks: ‘A cyclist covers 300 metres in 50 seconds. Calculate the average speed.’ The examiner expects the formula, substitution, calculation, and the unit.

经典真题示例：“一名自行车手在 50 秒内行驶了 300 米。计算平均速度。” 考官期望写出公式、代入数据、计算结果和单位。

average speed = total distance ÷ total time

v = 300 m ÷ 50 s = 6 m/s

Marks are frequently lost when students forget the unit (m/s) or confuse distance‑time graphs with speed‑time graphs. Always label axes and describe the motion in words – ‘constant speed’ or ‘stationary’ – for full marks.

学生常因遗漏单位（m/s）或将距离‑时间图与速度‑时间图混淆而失分。务必标注坐标轴并用文字描述运动状态，如“匀速”或“静止”，才能拿到满分。

Weight calculations also appear regularly. On Earth, gravitational field strength is taken as 10 N/kg. A typical question: ‘What is the weight of a 5 kg object?’

重量计算题也经常出现。地球的重力场强取 10 N/kg。典型问题：“一个 5 kg 的物体重量是多少？”

weight = mass × gravitational field strength

W = 5 kg × 10 N/kg = 50 N

Forces are often represented by arrows in past papers. Ensure arrows point in the right direction and are labelled with their size. Balanced forces produce no change in motion; unbalanced forces cause acceleration, deceleration, or change in direction.

历年试题中常用箭头表示力。确保箭头方向正确并标出力的大小。平衡力不改变物体运动状态；非平衡力则导致加速、减速或方向改变。

3. Energy: Forms, Conservation, and Transfers | 能量：形式、守恒与转移

Exam questions test the principle that energy cannot be created or destroyed, only transferred, stored, or dissipated. A flashlight is a common context: chemical energy in the battery → electrical energy in the wires → light energy from the bulb, with some thermal energy wasted.

考试题目考查能量既不能创生也不能消灭，只能转移、储存或耗散。手电筒是常见情景：电池中的化学能 → 导线中的电能 → 灯泡发出的光能，同时部分热能散失。

Using a table like this in your answers can help organise energy transfer chains. In past papers, students are often asked to draw a flow diagram or describe the energy changes in a given appliance. Always include the ‘wasted’ energy, usually thermal or sound, to show you understand efficiency.

在答案中使用类似的表格有助于梳理想象能量转移链。历年试卷常要求学生画出能量流程图或描述某个电器的能量变化。务必提及“耗散”的能量（通常是热能或声能），以体现对效率的理解。

4. Electricity: Circuits, Symbols, and Safety | 电学：电路、符号与安全

Drawing and interpreting circuit diagrams using correct symbols is one of the most heavily tested skills. Battery (two cells, one long line and one short), bulb (circle with a cross), switch (break in the line), and wire (straight line) must be drawn accurately.

用正确的符号绘制和解读电路图是考查最多的技能之一。电池（两个单元，一长线一短线）、灯泡（带叉的圆）、开关（断开线）和导线（直线）必须准确画出。

• Series circuit: one loop; if one bulb breaks, all go out; current is the same everywhere.
• Parallel circuit: two or more loops; if one bulb breaks, the others stay on; the voltage across each branch is the same.

• 串联电路：一个回路；一个灯泡损坏，所有灯泡熄灭；电流处处相等。
• 并联电路：两个或多个回路；一个灯泡损坏，其他仍亮；各支路电压相等。

Past papers frequently include a circuit diagram with a deliberate short circuit (a wire bypassing a bulb). Students must identify why the bulb will not light – the current takes the path of least resistance. Safety questions also feature: never touch switches with wet hands, don’t overload sockets, and always use insulated wires.

历年试题经常给出含有故意短路的电路图（导线绕过灯泡）。学生必须说明灯泡为何不亮——电流走电阻最小的路径。安全常识题也常出现：不用湿手触摸开关、不使插座过载、始终使用绝缘导线。

5. Waves: Light and Sound in Exam Questions | 波：光与声的考题解析

Light questions typically involve the law of reflection: angle of incidence = angle of reflection. Past papers provide a diagram with a mirror and an incident ray; students must draw the normal (dashed line at 90° to the surface) and the reflected ray, then measure the angles with a protractor.

光的考题通常围绕反射定律：入射角 = 反射角。历年真题会给出平面镜和入射光线的图；学生需画出法线（垂直于镜面的虚线）和反射光线，并用量角器测量角度。

Sound is tested through the idea of vibrations. Higher pitched sounds have a higher frequency; louder sounds have a greater amplitude. A question may ask why astronauts cannot hear each other directly in space – there is no medium (air) for sound to travel through.

声音通过振动概念考查。音调高意味着频率高；响度大意味着振幅大。可能会问为什么宇航员在太空不能直接对话——因为没有介质（空气）传播声音。

Simple ray diagrams for shadows are also common: explain how a shadow forms when an opaque object blocks light. The size of the shadow depends on the distance between the object and the light source.

简单的影子光路图也很常见：解释不透明物体挡住光线时影子如何形成。影子的大小取决于物体与光源的距离。

6. Matter: Particle Model and Changes of State | 物质：粒子模型与状态变化

According to past paper marking schemes, the particle model must be described using terms like ‘regular arrangement’, ‘close together’, ‘move around’, or ‘far apart and random’. A table comparing solids, liquids and gases earns high marks.

根据历年评分标准，描述粒子模型必须使用“规则排列”、“紧密”、“自由移动”或“间隔很远且无序”等术语。用表格对比固体、液体和气体能获得高分。

Questions on change of state require the correct terms: melting (solid to liquid), freezing (liquid to solid), boiling/evaporation (liquid to gas), condensation (gas to liquid). Always link these to particle energy and movement: when heated, particles gain energy and move faster.

状态变化题要求使用正确术语：熔化（固态变液态）、凝固（液态变固态）、沸腾/蒸发（液态变气态）、冷凝（气态变液态）。始终联系粒子能量与运动：受热时，粒子获得能量，运动加快。

7. Earth and Space: Solar System and Seasons | 地球与空间：太阳系与季节

Recall the order of the planets from the Sun is a favourite one‑mark question: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Many past papers also ask why Earth has day and night – rotation of the Earth on its axis once every 24 hours.

背诵行星顺序是常见的一分题：水星、金星、地球、火星、木星、土星、天王星、海王星。许多真题还会问为什么地球有昼夜——地球绕地轴自转，每 24 小时一圈。

Seasons are caused by the tilt of Earth’s axis combined with its orbit around the Sun. When the Northern Hemisphere is tilted towards the Sun, it is summer; when tilted away, winter. A diagram showing this tilt often appears in past papers, and students are asked to label the season for each position.

季节是由于地轴倾斜与地球绕太阳公转共同造成的。当北半球倾向太阳时是夏季，偏离太阳时是冬季。真题常给出显示地轴倾斜的图示，让学生标出每个位置对应的季节。

Gravitational force keeps planets in orbit. The Sun’s massive gravitational pull holds all the planets in the solar system. This concept is tested through simple reasoning: ‘Why doesn’t Earth fly off into space?’ – because of the Sun’s gravity.

万有引力使行星保持在轨道上。太阳巨大的引力维系着整个太阳系的行星。该概念通过简单推理考查：“为什么地球不会飞入太空？”——因为太阳的引力。

8. Practical Skills and Accurate Measurements | 实验技能与精确测量

Exam papers always include questions on reading measuring instruments such as thermometers, rulers, measuring cylinders, and force meters. The key is to read the scale at eye level to avoid parallax error and to note the smallest division to determine the measurement’s precision.

试卷总会包含读取测量仪器的题目，如温度计、直尺、量筒和测力计。关键是要在眼睛水平位置读数以避免视差，并留意最小刻度以确定测量精度。

For example, if a ruler shows a pencil length between 6.2 cm and 6.3 cm, the answer should be recorded as 6.25 cm if estimated, or 6.2 cm if the question asks for the exact reading. Always write the unit. In past papers, missing the unit ‘cm’ or giving the reading as ‘6.2’ without a unit loses the mark.

例如，若直尺上铅笔长度在 6.2 cm 和 6.3 cm 之间，估算时应记录为 6.25 cm，或按题目要求精确读出 6.2 cm。始终写入单位。真题中，遗漏单位“cm”或只写“6.2”而不带单位均不得分。

Another common practical task is planning a fair test. Variables must be identified: independent (what you change), dependent (what you measure), and control (what you keep the same). A typical question: ‘Design an experiment to find out how the length of a pendulum affects its period.’

另一常见实验任务是设计公平实验。必须识别变量：自变量（改变的量）、因变量（测量的量）和控制变量（保持不变的量）。典型问题如：“设计一个实验，探究摆长对摆的周期有何影响。”

9. Data Handling, Tables, and Graph Drawing | 数据处理、表格与图表绘制

Past papers often provide a table of results and ask students to plot a line graph or bar chart. Marks go to: choosing a sensible scale, labelling axes with quantity and unit, plotting points accurately with small crosses, and drawing a smooth line of best fit (not dot‑to‑dot).

真题常给出结果表格，要求学生绘制线图或条形图。得分点包括：选择合适比例、用物理量及单位标注坐标轴、用小叉准确描点、绘制平滑的最佳拟合线（非逐点连线）。

Interpreting graphs is equally important. A question might ask: ‘Describe the relationship shown on the graph.’ Acceptable answers include ‘as the mass increases, the extension increases proportionally’ or ‘the line goes through the origin, so they are directly proportional.’

解读图表同样重要。问题可能要求：“描述图表所示关系。”可以接受的答案包括：“随着质量增加，伸长量成正比例增加”或“直线过原点，因此两者成正比。”

Be aware of anomalies. If one point lies far from the line of best fit, examiners expect you to identify it and suggest repeating that measurement. Use phrases like ‘ignore the anomaly when drawing the line of best fit.’

注意异常值。若某点偏离最佳拟合线较远，考官期望你指出该点并建议重测该数据。使用类似“绘制最佳拟合线时忽略该异常值”的表述。

10. Common Mistakes to Avoid Based on Past Papers | 基于真题的常见失分点

Marking examiner reports highlight recurring errors. The top five are: (1) forgetting to include units; (2) confusing mass (kg) and weight (N); (3) drawing a circuit where the battery is short‑circuited; (4) labelling the normal incorrectly in reflection diagrams; (5) not reading the question carefully – for example, giving the formula for speed when asked for acceleration.

主考人报告突出了反复出现的错误。前五位是：(1) 忘记写单位；(2) 混淆质量（kg）和重量（N）；(3) 画出电池被短路的电路图；(4) 在反射图中错误标注法线；(5) 审题不仔细——例如要求算加速度却给出了速度公式。

To avoid these, always underline the command word in the question (describe, explain, calculate) and the object being measured. Double‑check that your final answer is a number with a unit, and that the unit matches the quantity (mass in kg, not g, unless specifically asked).

为避免这些失误，始终在读题时划出指令词（描述、解释、计算）和测量对象。反复检查最终答案是否包含数字和单位，且单位与物理量相符（质量用 kg 而非 g，除非特别要求）。

11. Time Management and Exam Technique | 时间管理与考试技巧

A typical Year 7 CCEA Physics exam lasts about 45–60 minutes with around 40–50 marks. Divide your time by marks: one mark per minute is a safe rule. Do not spend long on a difficult calculation – mark it, move on, and return at the end.

一场典型的 Year 7 CCEA 物理考试约 45–60 分钟，总分在 40–50 分之间。按分数分配时间：一分钟一分是稳妥原则。不要在难题上花费过长时间——先标记，继续前进，最后再回头解决。

For ‘explain’ questions, use the P.E.E. structure: Point, Evidence, Explain. For example, ‘The bulb in circuit A is brighter (Point) because it has a higher current (Evidence). This is because the circuit has fewer bulbs, so the total resistance is lower (Explain).’

对于“解释”类题目，使用 P.E.E. 结构：观点、证据、解释。例如：“电路 A 中的灯泡更亮（观点），因为通过它的电流更大（证据）。这是由于灯泡数量更少，总电阻更低（解释）。”

Always attempt every question. Even a partially correct diagram or a simple definition can earn marks. If asked to draw a graph, make a start – labelling axes correctly can secure two marks even if the points are not perfect.

务必尝试回答每一题。即便只是部分正确的图示或一个简单的定义也能得分。如果要求画图，先做起来——正确标注坐标轴就能确保两分，即便描点不完全准确。

12. Revision Strategies Informed by Past Papers | 真题导向的复习策略

Use past papers actively: do a question, mark it yourself using the mark scheme, and note exactly where you dropped marks. Categorise errors into ‘knowledge gap’, ‘calculation slip’, ‘wrong unit’, or ‘misreading question’ to see patterns.

积极使用历年真题：做一道题，自己对照评分标准批改，并精确记录失分点。将错误分类为“知识漏洞”、“计算粗心”、“单位错误”或“审题不清”，以发现失分规律。

Create flashcards for definitions (e.g., ‘Weight is the force of gravity on an object, measured in newtons N’) and key diagrams (the reflection diagram, circuit symbols). Quiz yourself with a friend: one reads a past‑paper question, the other answers verbally – this builds speed.

制作定义卡片（如“重量是作用在物体上的重力，单位为牛顿 N”）和关键图示（反射图、电路符号）。与同学相互提问：一人读出真题问题，另一人口头作答——这能提高反应速度。

Finally, practise the calculations until they become automatic. Re‑write the formulas every time you attempt a new past paper. Consistent practice with real past questions is the most reliable way to improve your grade.

最后，反复练习计算直至条件反射。每次做新真题时都重新写出公式。持续用真实考题练习是提升分数最可靠的方法。

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📚 Year 7 CCEA Physics: 2026 Exam Changes and Trends | Year 7 CCEA 物理：2026年考试变化与趋势

In Northern Ireland, Year 7 marks the final year of primary education, but the CCEA curriculum already lays the groundwork for physics through the ‘World Around Us’ and science strands. Starting in 2026, CCEA is introducing transformative changes to how Year 7 pupils’ understanding of physics concepts is assessed. The focus will shift from traditional written tests to more holistic, skills-based evaluations, aiming to foster curiosity, scientific inquiry, and practical competence from an early age.

在北爱尔兰，七年级是小学教育的最后一年，但 CCEA 课程已通过”我们周围的世界”和科学领域为物理学习奠定基础。从 2026 年起，CCEA 将对七年级学生物理概念的评估方式进行重大改革。重点将从传统的书面测试转向更全面、基于技能的评价，旨在从小培养学生的好奇心、科学探究能力和实践能力。

1. The End of Traditional Written Exams | 传统笔试的终结

Under the 2026 framework, Year 7 physics will no longer rely on a single end-of-year written examination. Instead, teachers will assess students through a variety of classroom-based activities, such as practical investigations, digital portfolios, and collaborative projects. This change recognises that young learners demonstrate understanding better through doing rather than memorising facts for a test.

根据 2026 框架，七年级物理将不再依赖单一的期末笔试。取而代之的是，教师将通过多种课堂活动进行评估，包括实践探究、数字档案和合作项目。这一改变承认了青少年学习者通过动手操作比死记硬背更能展示理解。

2. New Emphasis on Scientific Inquiry | 对科学探究的新强调

The revised CCEA approach places scientific inquiry at the heart of Year 7 physics. Students will be expected to ask questions, make predictions, plan simple experiments, gather and present data, and draw conclusions. These skills, which are crucial for later GCSE studies, will be assessed continuously rather than in a standalone exam.

修订后的 CCEA 方法将科学探究置于七年级物理的核心。学生将被要求提出问题、做出预测、设计简单实验、收集和展示数据并得出结论。这些对后续 GCSE 学习至关重要的技能将通过持续性评估而非单独的考试来评价。

3. Practical Investigation Tasks as Core Assessment | 实践探究任务成为核心评估

Each term, students will complete at least one major practical investigation in physics. Examples include measuring the speed of a toy car down a ramp, investigating how different materials conduct heat, or building simple circuits to test conductivity. Their performance in planning, carrying out, and reflecting on these tasks will form the main part of their assessment record.

每学期，学生将完成至少一项重要的物理实践探究。例如，测量玩具小车沿斜坡下滑的速度，探究不同材料如何导热，或搭建简单电路来测试导电性。学生在规划、执行和反思这些任务中的表现将构成他们评估记录的主要部分。

Teachers will use observation checklists and rubric-based scoring rather than traditional marks. – 教师将使用观察检查表和评分准则而非传统分数。

4. Digital Portfolios and e-Assessment | 数字档案与电子评估

A digital portfolio will become the standard way to collect evidence of learning. Students may upload photos, short videos of their experiments, typed reflections, and even audio explanations. This e-portfolio can be shared with parents and will move with the student into Year 8, providing a clear record of progression.

数字档案将成为收集学习证据的标准方式。学生可以上传照片、实验短视频、文字反思，甚至语音解释。这份电子档案可与家长分享，并随学生进入八年级，提供清晰的进步记录。

5. Updated Physics Topics for Year 7 | 更新后的七年级物理主题

While the core content remains rooted in energy, forces, and matter, the 2026 curriculum introduces new thematic links. A greater emphasis on environmental physics and sustainability means topics such as renewable energy sources and energy efficiency will be explored through hands-on projects. The table below outlines the key topic areas and associated inquiry skills:

虽然核心内容仍然以能量、力和物质为基础，但 2026 课程引入了新的主题关联。对环境物理和可持续性的更加重视意味着将通过动手项目探索可再生能源和能源效率等主题。下表列出了关键主题领域和相关探究技能：

6. Integration of Cross-Curricular Skills | 跨学科技能的整合

Maths and digital skills are now explicitly woven into physics assessment. Students will be expected to use basic equations—for instance, the formula for speed: speed = distance ÷ time—and to represent data in bar charts and simple graphs. They may also use sensors and data-logging equipment, linking technology with scientific enquiry.

数学和数字技能现在明确地融入了物理评估。学生将被期望使用基本方程——例如速度公式：速度 = 距离 ÷ 时间——并用条形图和简单图表表示数据。他们还可能使用传感器和数据记录设备，将技术与科学探究联系起来。

7. Formative Feedback and Self-Assessment | 形成性反馈与自我评估

Grades will no longer be the primary focus. Instead, teachers will provide detailed, qualitative feedback on what students did well and how they can improve. Students will also engage in self-assessment and peer-assessment, using prompts like “What was the hardest part of the experiment?” and “How could I make my measurements more accurate?”. This nurtures a growth mindset.

分数将不再是主要关注点。取而代之的是，教师将提供详细的质量反馈，说明学生表现良好的地方以及如何改进。学生还将进行自我评估和同伴评估，使用诸如”实验中最难的部分是什么？”以及”我如何使测量更准确？”等提示。这培养了成长型思维。

8. Environmental Awareness in Physics | 物理中的环境意识

A unique trend in the 2026 changes is the integration of sustainability into physics. Students not only learn about energy transformations but also discuss the environmental impact of different energy sources. Assessment tasks might ask them to design an energy-saving device for the school or to present findings on local renewable energy projects.

2026 年变化中的一个独特趋势是将可持续性融入物理。学生不仅学习能量转换，还讨论不同能源对环境的影响。评估任务可能会要求他们为学校设计节能装置，或展示当地可再生能源项目的研究结果。

9. Teacher Training and Resource Needs | 教师培训与资源需求

For this shift to succeed, CCEA is investing in professional development for primary and Year 7 science teachers. Training will focus on facilitating open-ended investigations, using digital tools, and delivering effective feedback. Schools will also need to upgrade practical equipment and ensure access to tablets or computers for digital portfolios.

为使这一转变成功，CCEA 正在投资小学和七年级科学教师的专业发展。培训将侧重于促进开放式探究、使用数字工具以及提供有效的反馈。学校还需要升级实践设备，并确保有平板或计算机用于数字档案。

10. How Students Can Prepare for the New Assessment | 学生如何为新评估做准备

Students entering Year 7 in 2026 can get ready by developing habits of curiosity and careful observation. Parents can encourage activities like measuring ingredients while cooking, recording weather data, or building simple models. At school, practising asking scientific questions and keeping a notebook of diagrams and explanations will build confidence for the new format.

在 2026 年入读七年级的学生可以通过培养好奇心和细心观察的习惯做好准备。家长可以鼓励孩子进行测量烹饪配料、记录天气数据或搭建简单模型等活动。在学校，练习提出科学问题并用笔记本记录图表和解释，将为适应新形式建立信心。

11. Long-Term Trends and Future Outlook | 长期趋势与未来展望

The 2026 changes are part of a broader international trend in science education that values competencies over content recall. By embedding these practices early, CCEA aims to produce more scientifically literate students who are ready for the demands of GCSE Physics and beyond. It is anticipated that similar reforms will eventually extend to Year 8 and 9, creating a seamless progression through Key Stage 3.

2026 年的变化是国际科学教育更广泛趋势的一部分，即重视能力胜于记忆内容。通过早期嵌入这些实践，CCEA 旨在培养更多具备科学素养的学生，为 GCSE 物理及更高要求做好准备。预计类似的改革最终将扩展到八年级和九年级，在关键阶段 3 实现无缝衔接。

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📚 High-Frequency Topics and Common Mistakes in Year 7 CCEA Physics | CCEA七年级物理高频考点与易错题分析

In Year 7 CCEA Physics, students explore fundamental concepts that build the foundation for all future science learning. Topics such as energy, forces, electricity, sound and light appear frequently in tests, yet they also hide common pitfalls that can trip up even confident learners. This guide breaks down the key topics you need to know and shines a light on the most typical mistakes, helping you to avoid them and strengthen your understanding.

在七年级CCEA物理中，学生们会学习为未来所有科学课程打下基础的基本概念。能量、力、电、声和光等主题经常在测验中出现，但其中也隐藏着一些常见的陷阱，即便是有信心的学生也可能犯错。本指南将分解你需要掌握的关键主题，并揭示最典型的错误，帮助你避开误区并加深理解。

1. Energy Stores and Transfers | 能量储存与转移

Energy is never created or destroyed; it is only transferred between different ‘stores’. The main energy stores at this level include kinetic energy (movement), thermal energy (heat), chemical energy (fuels, food, batteries), gravitational potential energy (energy due to height), and elastic potential energy (stretched or compressed springs and bands). Energy can be transferred by heating, by waves (light, sound), by an electric current, or by a mechanical force doing work.

能量既不会凭空产生也不会凭空消失；它只会在不同的‘储存库’之间转移。在这个阶段主要的能量储存包括动能（运动）、热能（热）、化学能（燃料、食物、电池）、重力势能（由高度产生的能量）和弹性势能（被拉伸或压缩的弹簧和橡皮筋）。能量可以通过加热、波（光、声）、电流或通过力做功来转移。

A very common mistake is to think that energy is ‘used up’ when, for example, a car stops. In reality, the kinetic energy is transferred into thermal energy in the brakes and surroundings. Another frequent error is confusing energy stores with transfer pathways — the stores are where energy is held, while the pathways describe how it moves.

一个非常常见的错误是，以为能量被‘用完’了，例如当汽车停下来时。实际上，动能被转移到刹车和周围环境中变成了热能。另一个常见错误是把能量储存与转移途径混淆——储存是能量存在的地方，而途径描述能量如何移动。

Test questions often ask you to identify stores before and after an event, such as a ball thrown upward. At the start, chemical energy in muscles transfers to kinetic energy and gravitational potential energy. As it rises, kinetic energy decreases and gravitational energy increases.

测验题经常会让你识别事件前后的能量储存，例如向上抛球。开始时，肌肉中的化学能转化为动能和重力势能。随着球上升，动能减少而重力势能增加。

2. Forces and Their Effects | 力及其作用效果

Forces are pushes or pulls that can change an object’s speed, direction, or shape. Forces are measured in newtons (N). Common forces include friction, air resistance, gravity, tension, magnetic force, and upthrust. Forces always act in pairs and are often shown using force arrows on a diagram.

力是推或拉，可以改变物体的速度、方向或形状。力以牛顿（N）为单位。常见的力包括摩擦力、空气阻力、重力、拉力、磁力和上推力。力总是成对出现，并且常用图中的箭头来表示。

A classic misconception is that a moving object must have a forward force acting on it at all times. In fact, an object moving at a constant speed in a straight line has balanced forces acting on it (or no resultant force). The forward force might balance against friction. Students also often confuse ‘balanced forces’ with ‘no forces’ — an object can have forces acting on it and still be stationary if they are balanced.

一个经典误解是：正在运动的物体必定一直受到向前的力。实际上，做匀速直线运动的物体所受的力是平衡的（或者没有净力）。向前的力可能与摩擦力相平衡。学生还经常把‘平衡力’与‘没有力’混淆——物体可以受到力但仍然保持静止，只要这些力是平衡的。

When drawing force diagrams, remember to start each arrow from the object’s centre of mass and label them clearly. Exam questions frequently ask you to explain the forces on a parachutist or a floating boat.

在画力的示意图时，记住让每个箭头从物体的重心出发并清楚地标注。考题经常要求你解释降落伞运动员或漂浮小船的受力情况。

3. Speed and Motion Graphs | 速度与运动图像

Speed tells you how fast an object is moving. The average speed is calculated using:

Average Speed = Total Distance ÷ Total Time (v = s / t)

In Year 7, typical units are metres per second (m/s) or kilometres per hour (km/h). Always check that distance and time units match before you calculate.

平均速度的计算公式为：

平均速度 = 总距离 ÷ 总时间 (v = s / t)

在七年级，典型单位是米每秒（m/s）或千米每小时（km/h）。计算前一定要检查距离和时间的单位是否匹配。

Distance-time graphs are a high-frequency topic. A straight, sloping line represents constant speed; a horizontal line means the object is stationary; a curved line shows changing speed (acceleration or deceleration). A very common error is to read the steepness of the slope without checking the axes. Students may think a horizontal line means no motion, which is correct, but they sometimes misread the distance axis and think the object has moved when it has not.

距离-时间图像是一个高频考点。一条倾斜的直线表示匀速运动；水平线表示物体静止；曲线表示速度在变化（加速或减速）。一个非常常见的错误是不检查坐标轴就直接读取斜率。学生可能认为水平线代表没有运动，这是对的，但他们有时会误读距离轴，以为物体移动了而实际上它并未移动。

Always remember that the slope of a distance-time graph equals speed. The steeper the slope, the faster the speed. For curved lines, the slope is changing, so the speed is changing too.

始终记住：距离-时间图像的斜率等于速度。斜率越陡，速度越快。对于曲线，斜率在变化，所以速度也在变化。

4. Mass, Weight and Gravity | 质量、重量与重力

Mass and weight are not the same thing, yet students frequently mix them up. Mass is the amount of matter in an object and is measured in kilograms (kg). It does not change wherever the object is in the universe. Weight is the force of gravity acting on that mass and is measured in newtons (N). Weight changes depending on the gravitational field strength.

质量和重量不是一回事，但学生经常把它们混淆。质量是物体所含物质的多少，以千克（kg）为单位，无论物体在宇宙的何处它都不会改变。重量是作用在该质量上的重力，以牛顿（N）为单位。重量会随着重力场强度而改变。

The relationship is given by the formula:

Weight = Mass × Gravitational Field Strength (W = m g)

On Earth, the gravitational field strength is about 10 N/kg. This means a 1 kg mass weighs 10 N.

用公式表示：

重量 = 质量 × 重力场强度 (W = m g)

在地球上，重力场强度约为10 N/kg。这意味着质量为1 kg的物体重量为10 N。

A typical error is to say ‘my weight is 50 kg’ — this is wrong scientifically because kg is a unit of mass, not weight. The correct statement is ‘my mass is 50 kg, and my weight is about 500 N on Earth.’ Also, students often think that mass changes on the Moon. It is the weight that becomes smaller because the Moon’s gravity is weaker, but the mass stays exactly the same.

一个典型错误是说‘我的重量是50公斤’——这在科学上是不对的，因为公斤是质量的单位而不是重量。正确的说法是‘我的质量是50公斤，在地球上我的重量大约是500 N。’此外，学生常认为在月球上质量会改变。实际上变小的是重量，因为月球的引力较弱，但质量完全不变。

5. Electric Circuits and Current | 电路与电流

An electric current is a flow of electric charge, usually carried by moving electrons in a metal wire. We measure current in amperes (A) using an ammeter connected in series. For a simple circuit to work, it must be a complete loop with a power source, such as a cell or battery.

电流是电荷的流动，通常由金属导线中移动的电子携带。我们用串联在电路中的电流表来测量电流，单位是安培（A）。一个简单的电路要工作，必须是一个完整的回路，并带有一个电源，如电池。

The single biggest misconception is that current gets ‘used up’ as it goes around a circuit. Many learners think that the first bulb in a series circuit gets all the current and the second bulb gets what is left over. In reality, the current is the same at all points in a series circuit — the same amount of charge per second flows through every component.

最大的误解是认为电流在回路中流动时会被‘用掉’。许多学习者以为串联电路中的第一个灯泡获得全部电流，第二个灯泡则获得剩下的。实际上，在串联电路中，所有点的电流大小相等——每秒流过每个元件的电荷量是相同的。

It is the energy carried by the current, not the current itself, that is transferred to the bulb to make it light up. A good way to remember is: current is a flow rate, so it cannot pile up or disappear.

被转移到灯泡中使其发光的是电流携带的能量，而非电流本身。一个好的记忆方法是：电流是一种流动速率，因此它不会堆积或消失。

6. Series and Parallel Circuits | 串联与并联电路

In a series circuit, components are connected one after another in a single loop. The current is identical everywhere, but the total voltage from the battery is shared between the components. That is why adding more bulbs in series makes them all dimmer — each bulb receives a smaller voltage.

在串联电路中，元件依次连接在单一回路中。电流处处相同，但电池的总电压被分配到各个元件上。这就是为什么串联更多灯泡会使所有灯泡变暗——每个灯泡分到的电压变小。

In a parallel circuit, branches split the current. The total current from the battery equals the sum of the currents in all branches. Crucially, the voltage across each branch is equal to the source voltage, so parallel bulbs shine with the same brightness regardless of how many branches are added, provided the battery can supply enough current.

在并联电路中，支路会将电流分流。来自电池的总电流等于各支路电流之和。关键的是，每个支路两端的电压都等于电源电压，因此只要电池能提供足够的电流，无论增加多少支路，并联的灯泡亮度都相同。

A common mistake is to think that parallel circuits are always brighter than series circuits. While each bulb in parallel typically receives full voltage, the battery drains faster because it is delivering more total current. Also, students may think that when one bulb in a series circuit blows, the other stays on; in fact, the circuit breaks and all bulbs go out.

一个常见错误是认为并联电路的灯泡总是比串联电路的亮。虽然通常并联的每个灯泡都能得到满电压，但电池因输出更大的总电流而消耗更快。此外，学生可能误以为串联电路中一个灯泡烧坏后，其他的还能亮；实际上电路断路，所有灯泡都熄灭。

7. States of Matter and Particle Model | 物质状态与粒子模型

All substances are made of particles. In solids, particles are tightly packed in a regular pattern, vibrate in fixed positions, and cannot move past each other. In liquids, particles are close but can slide over one another, allowing the liquid to flow. In gases, particles are far apart, move randomly at high speeds, and fill any container.

所有物质都由粒子构成。固体中，粒子紧密排列成规则的图案，在固定位置上振动，不能互相移动。液体中，粒子紧挨但能彼此滑过，使液体可以流动。气体中，粒子相距很远，高速随机运动，并充满任何容器。

A very common error, even in exam answers, is to say that particles themselves expand when heated. Actually, the particles do not change size; it is the spaces between them that increase. Similarly, students often draw liquid particles as completely stationary, when in fact they are in constant random motion (though slower than gas particles).

一个甚至在考试答案中都很常见的错误是说受热时粒子本身膨胀。事实上，粒子的大小并不改变，改变的是它们之间的距离。类似地，学生常把液体粒子画成完全静止的，而实际上它们在不断地作无规则运动（尽管比气体粒子慢）。

Understanding the particle model helps explain changes of state, diffusion, and gas pressure. Remember, solids keep their shape because of strong forces between particles; gases have no fixed shape because the forces are negligible.

理解粒子模型有助于解释状态变化、扩散和气压。记住，固体保持形状是因为粒子间有较强的力；气体没有固定形状是因为这些力可以忽略不计。

8. Sound Waves and Hearing | 声波与听觉

Sound is produced by vibrating objects. These vibrations travel as longitudinal waves through a medium (solid, liquid, or gas) by making the particles in the medium vibrate. Sound cannot travel through a vacuum because there are no particles to pass on the vibration.

声音由振动物体产生。这些振动作为纵波通过介质（固体、液体或气体）传播，使介质中的粒子振动起来。声音不能在真空中传播，因为没有粒子来传递振动。

Two key properties of sound are pitch (how high or low a sound is) and loudness. Pitch depends on the frequency of the vibration, which is measured in hertz (Hz). A higher frequency gives a higher pitch. Loudness depends on the amplitude (size) of the vibration. The larger the amplitude, the louder the sound.

声音的两个关键特性是音调（声音的高低）和响度。音调取决于振动频率，频率的单位是赫兹（Hz）。频率越高，音调越高。响度则取决于振幅（振动的大小）。振幅越大，声音越响。

A typical mistake is to think that a high-pitched sound is always loud, or that pitch and loudness are the same thing. They are independent. You can have a low, loud rumble or a high, quiet whistle. Also, many students believe sound travels faster in air than in solids; actually, sound travels fastest in solids because particles are closer together.

一个典型的错误是认为高音调的声音一定很响，或者认为音调和响度是一回事。它们是相互独立的。你可以有低沉响亮的隆隆声，也可以有高而轻的口哨声。而且，很多学生认为声音在空气中比在固体中传播更快；其实声音在固体中传播最快，因为粒子靠得更近。

9. Light and Reflection | 光与反射

Light travels in straight lines and at a very high speed (about 300,000,000 m/s in a vacuum). When light hits a smooth shiny surface, it is reflected. The law of reflection states that the angle of incidence equals the angle of reflection. Both angles are measured from the normal, an imaginary line drawn at right angles to the surface.

光沿直线传播，速度极高（在真空中约为300,000,000 m/s）。当光射到光滑的镜面时会被反射。反射定律指出，入射角等于反射角。两个角都是相对于法线来测量的，法线是一条垂直于表面的想象线。

One of the most common errors in reflection questions is measuring the angle from the surface mirror rather than from the normal. If a question says ‘the light hits the mirror at 30 degrees’, students often set the angle of incidence as 30°, when it is actually 60° (90° – 30°). Always draw the normal first.

在反射题中，最常见的错误之一是从镜面而非从法线来测量角度。如果题目说‘光以30度射到镜面’，学生经常把入射角当作30°，而它实际上是60°（90° – 30°）。务必先画出法线。

Plane mirrors produce virtual, upright images that are the same size as the object and appear to be the same distance behind the mirror as the object is in front. An easy mistake is to think the image is reversed left-right; actually, it is front-to-back reversal, which is why your left hand becomes the image’s right hand.

平面镜产生虚像，像是正立、与物体大小相等，并且看起来在镜后与物体到镜面的距离相等。简单的错误是以为像是左右颠倒的；实际上是前后颠倒，这就是为什么你的左手会变成像的右手。

10. Common Misconceptions in Measurement | 测量中的常见误区

Accurate measurement is essential in physics. Year 7 students are expected to measure length (mm, cm, m, km), mass (g, kg), volume of liquids (mL, L), and time (seconds, minutes). Always use the correct instrument: a ruler for length, a measuring cylinder for volume, a balance for mass, and a stopwatch for time.

精确测量是物理学习的基础。七年级学生需要掌握测量长度（毫米、厘米、米、千米）、质量（克、千克）、液体体积（毫升、升）和时间（秒、分钟）。务必使用正确的仪器：测长度用直尺，测体积用量筒，测质量用天平，测时间用秒表。

A frequent error is forgetting to start measuring from the zero mark on a ruler, or failing to read the bottom of the meniscus in a measuring cylinder at eye level to avoid parallax error. When converting units, mistakes like 1 m = 10 cm instead of 100 cm are surprisingly common.

频繁出现的错误有：忘记从直尺的零刻度开始测量，或者在观察量筒内液面时没有平视凹液面的底部，导致视差。进行单位换算时，类似1 m = 10 cm而不是100 cm这样的错误也出人意料地常见。

To convert between units, remember: 1 cm = 10 mm, 1 m = 100 cm, 1 km = 1000 m. For volume, 1 cm³ = 1 mL. Practise converting 2.5 km to metres and 4500 g to kilograms to build confidence. In time-based questions, always check whether you need seconds or minutes, and handle conversions carefully.

进行单位换算时要记住：1 cm = 10 mm，1 m = 100 cm，1 km = 1000 m。对于体积，1 cm³ = 1 mL。通过练习如将2.5 km换算成米，将4500 g换算成千克，来建立信心。在涉及时间的题目中，务必检查是否需要秒或分钟，并谨慎处理换算。

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📚 Year 7 CCEA Physics: A Comprehensive Curriculum Guide | 七年级CCEA物理：课程大纲全面解析

Physics in Year 7 lays the groundwork for understanding how the universe works, from the forces that keep our feet on the ground to the energy that powers our homes. This guide breaks down the CCEA Key Stage 3 Physics curriculum for Year 7, covering all major topics, key skills, and practical investigation techniques. Whether you are a student starting your physics journey or a parent supporting learning at home, this article will give you a clear and complete picture of what to expect and how to succeed.

七年级物理为理解宇宙如何运行打下基础——从让我们脚踏实地的作用力到为我们家庭供电的能量。本指南详细解析了CCEA关键阶段三七年级物理课程，涵盖所有主要主题、关键技能和实验探究方法。无论你是即将开启物理学习的学生，还是在家中支持孩子学习的家长，本文都将让你清晰全面地了解将要学习的内容以及如何取得成功。

1. Introduction to Physics and Scientific Inquiry | 物理学与科学探究简介

Year 7 physics begins by introducing students to what physics is — the study of matter, energy, and the interactions between them. Pupils learn that physics is not just about equations, but about observing the world, asking questions, and designing experiments to find answers. The CCEA course emphasises scientific thinking: making predictions, collecting data, identifying patterns, and evaluating evidence.

七年级物理首先向学生介绍物理学是什么——它是对物质、能量及其相互作用的研究。学生们将认识到物理不仅仅是关于方程式，更在于观察世界、提出问题并设计实验寻找答案。CCEA课程强调科学思维：作出预测、收集数据、识别规律并评估证据。

Key practical skills are introduced right away. Students are taught to use common laboratory equipment safely, including stopwatches, metre rulers, mass balances, ammeters, and voltmeters. They also learn to record measurements accurately, using appropriate units such as metres (m), kilograms (kg), seconds (s), and degrees Celsius (°C). A major focus in Year 7 is learning the difference between accuracy and precision, and understanding how to minimise random and systematic errors.

关键的实验技能在最初就会引入。学生将学习安全使用常见实验室设备，包括秒表、米尺、天平、电流表和电压表。他们还会学习准确记录测量结果，并使用合适的单位，如米（m）、千克（kg）、秒（s）和摄氏度（°C）。七年级的一个重点在于学习准确度与精确度的区别，并理解如何减少随机误差和系统误差。

2. Forces and Their Effects | 力及其作用效果

This topic explores the idea that forces are pushes or pulls that can change the speed, direction, or shape of an object. Students start by identifying contact forces (such as friction, air resistance, and tension) and non-contact forces (such as gravitational, magnetic, and electrostatic forces). They learn to represent forces using arrows in free-body diagrams, where the length of the arrow shows the magnitude and the arrowhead indicates the direction.

本主题探索力是能够改变物体速度、方向或形状的推或拉这一概念。学生首先识别接触力（如摩擦力、空气阻力和张力）和非接触力（如重力、磁力和静电力）。他们学习使用自由体图中的箭头来表示力，箭头的长度表示大小，箭头指向表示方向。

Balanced and unbalanced forces are central ideas. When forces on an object are balanced, it either stays still or moves at a constant speed. When unbalanced, the object accelerates or decelerates. Simple calculations may be introduced, such as finding the resultant force by adding or subtracting forces acting along the same line. For example, a 10 N push to the right and a 4 N push to the left give a resultant of 6 N to the right.

平衡力与不平衡力是核心概念。当物体所受的力平衡时，它要么保持静止，要么以恒定速度运动。当力不平衡时，物体会加速或减速。可能会引入简单的计算，例如通过加减同一直线上的力求合力。比如，一个向右10 N的推力和一个向左4 N的推力，合力为向右6 N。

Investigating friction and the effect of lubricants is a typical Year 7 experiment. Students might measure how far a toy car travels on different surfaces (carpet, wood, sandpaper) or study how adding oil changes the force needed to pull a block. These activities reinforce the importance of controlling variables — a skill that runs throughout the CCEA curriculum.

研究摩擦力以及润滑剂的作用是七年级一个典型的实验。学生可以测量玩具车在不同表面（地毯、木板、砂纸）上行驶的距离，或者研究添加润滑油会如何改变拉动物体所需的力。这些活动强化了控制变量的重要性——这一技能贯穿整个CCEA课程。

3. Energy Types and Transfers | 能量的类型与转移

Energy is introduced as a property that enables things to happen. Year 7 pupils learn to identify different energy stores: kinetic (moving), thermal (heat), chemical (fuels, food, batteries), elastic potential (stretched or compressed springs), gravitational potential (objects raised above the ground), and light (radiation). They also understand that energy can be transferred from one store to another through pathways such as heating, work done by forces, and electrical currents.

能量作为一种能让事情发生的属性被引入。七年级学生学会分辨不同的能量储存方式：动能（运动）、热能（热量）、化学能（燃料、食物、电池）、弹性势能（拉伸或压缩的弹簧）、重力势能（被举高的物体）和光能（辐射）。他们也理解能量可以通过诸如加热、力做功和电流等途径从一种储存形式转移到另一种。

The law of conservation of energy is a key principle — energy cannot be created or destroyed, only transferred or transformed. Simple Sankey diagrams are drawn to show energy transfers in devices such as lightbulbs, electric kettles, and moving cars. In an electric lamp, for instance, the electrical energy input is transferred into useful light energy and wasted thermal energy.

能量守恒定律是一项关键原理——能量不能被创造或消灭，只能被转移或转化。学生们绘制简单的桑基图，以表示灯泡、电热水壶和行驶的汽车等装置中的能量转移。例如，在一个电灯中，输入的电能被转化为有用的光能和被浪费的热能。

A common practical investigation involves measuring the temperature rise in water when heated by a fuel, or comparing the bounce height of different balls to explore energy transfers. Students learn to calculate efficiency later, but in Year 7 the focus is on qualitative descriptions and simple percentage calculations using the idea that useful output divided by total input gives a measure of efficiency.

一个常见的实验探究涉及测量水在被燃料加热时的温升，或比较不同球的反弹高度以探索能量转移。学生稍后会学习计算效率，但在七年级，重点是定性描述和利用“有用输出除以总输入即为效率的度量”这一概念进行简单的百分比计算。

4. Electricity and Simple Circuits | 电与简单电路

Year 7 electricity work starts with static electricity — rubbing insulators to transfer electrons and seeing the attraction and repulsion of charged objects. Then the focus moves to current electricity. Students learn that an electric current is a flow of charge (electrons) around a complete circuit. They use circuit symbols for cells, batteries, switches, bulbs, buzzers, and motors, and learn to draw and construct series circuits.

七年级的电学从静电开始——通过摩擦绝缘体来转移电子，并观察带电物体的吸引和排斥现象。接着重点转向电流。学生了解到电流是电荷（电子）在完整回路中的流动。他们学习电池、开关、灯泡、蜂鸣器和马达的电路符号，并学会绘制和搭建串联电路。

Important concepts include conductors and insulators; metals let electricity flow easily while plastics and wood do not. Students test materials in a simple circuit to classify them. They also begin to think about voltage as the ‘push’ that drives current around a circuit, and resistance as anything that slows the flow down. However, the formal Ohm’s Law equation is not required until later years — simple qualitative relationships are the goal.

重要的概念包括导体和绝缘体：金属容易导电，而塑料和木材则不能。学生通过简单电路测试材料以对其进行分类。他们也开始思考电压是驱动电流在电路中流动的“推动力”，而电阻则是任何减缓流动的因素。然而，正式的欧姆定律方程要到高年级才要求掌握——目标是建立简单的定性关系。

A typical investigation involves adding more bulbs to a series circuit and observing how they become dimmer because the resistance increases. Students might also explore how a variable resistor can change the speed of a motor or the brightness of an LED. Safety with mains electricity is also emphasised: never experiment with sockets, keep water away from appliances, and know that mains voltage is dangerous.

一项典型的探究涉及在串联电路中增加更多灯泡，并观察它们如何因为电阻增加而变暗。学生也可能探索可变电阻如何改变电机的转速或LED的亮度。同时还强调了使用市电的安全问题：切勿用插座做实验、让电器远离水，以及了解市电电压是危险的。

5. Magnetism and Electromagnets | 磁与电磁铁

Magnetism is explored through permanent magnets and the Earth’s magnetic field. Year 7 pupils investigate the poles of a bar magnet, observing that like poles repel and unlike poles attract. They plot magnetic field lines using iron filings and plotting compasses, discovering that field lines go from north to south and never cross. The idea of a magnetic field as a region where materials experience a non-contact force is firmly established.

通过永磁体和地球磁场来探索磁学。七年级学生探究条形磁铁的磁极，观察同性磁极相斥、异性磁极相吸的现象。他们使用铁屑和指南针绘制磁感线，发现磁感线从北极指向南极且永不相交。磁场的概念——即材料在其中会受到非接触力的区域——被牢固地建立起来。

Magnetic materials (iron, steel, nickel, cobalt) are distinguished from non-magnetic ones. Students also learn about induced magnetism, where an unmagnetised magnetic material becomes a temporary magnet when placed in a magnetic field. They might test how paperclips can be magnetised by rubbing with a permanent magnet or by being in contact with one.

磁性材料（铁、钢、镍、钴）与非磁性材料被区分开来。学生们还学习了感应磁化，即未被磁化的磁性材料置于磁场中时会变成暂时磁体。他们可能会测试通过用永磁体摩擦或接触一个永磁体，回形针如何被磁化。

Electromagnets are introduced as a key application. By winding insulated wire around an iron core and passing a current through it, a strong magnetic field is produced that can be turned on and off. Pupils may design an investigation to find out how the number of coils or the current affects the strength of an electromagnet, measured by how many paperclips or pins it can pick up. This links electricity and magnetism together in a memorable way.

电磁铁作为一个关键应用被引入。通过将绝缘导线缠绕在铁芯上并通以电流，会产生一个可以开关的强磁场。学生可以设计一个探究，研究线圈匝数或电流大小如何影响电磁铁的强度，并以它能吸起的回形针或大头针数量来衡量。这以一种令人难忘的方式将电与磁联系在了一起。

6. Sound Waves and Hearing | 声波与听觉

Sound is taught as a longitudinal wave that travels through a medium (solid, liquid, or gas) by causing particles to vibrate back and forth. Students learn that sound cannot travel through a vacuum because there are no particles to carry the vibrations. They explore the speed of sound in air (approximately 330 m/s) and compare it with the speed in solids, which is generally much faster.

声音被作为一种纵波来教授，它通过引起粒子的前后振动在介质（固体、液体或气体）中传播。学生了解到声音不能在真空中传播，因为那里没有粒子来传递振动。他们探索声音在空气中的速度（约330 m/s），并将其与固体中的速度（通常快得多）进行比较。

The ear and hearing are covered, with simple descriptions of how the eardrum vibrates and sends signals to the brain. Students also learn about pitch and loudness: pitch is related to frequency (how many vibrations per second, measured in hertz, Hz), and loudness is related to amplitude (the size of the vibrations). A typical oscilloscope trace may be shown to link high pitch with closely spaced waves and loud sounds with tall waves.

课程涵盖耳朵与听觉，简单描述了鼓膜如何振动并向大脑发送信号。学生们还学习了音调和响度：音调与频率有关（每秒振动次数，以赫兹Hz为单位），响度则与振幅（振动的大小）有关。可能会展示典型的示波器波形，将高音调与排列紧密的波相联系，将响亮的声音与高幅度的波相联系。

Practical work often includes using tuning forks, signal generators, and microphones connected to software to see sound waves on a screen. Students might investigate how changing the length of a ruler vibrating over the edge of a table changes the pitch. The dangers of loud sounds for hearing and the use of ear protection are also discussed, highlighting the link between science and health.

实验工作通常包括使用音叉、信号发生器以及连接软件的麦克风在屏幕上观察声波。学生们可能探究改变悬在桌边振动的尺子长度会如何改变音调。课程还讨论了过大声音对听力的危害以及使用听力保护设备，突出了科学与健康之间的联系。

7. Light and Seeing | 光与视觉

This topic begins with light sources — luminous objects (which give out their own light, like the Sun) and non-luminous objects (which reflect light). Students learn that light travels in straight lines at a speed of about 300,000,000 m/s in a vacuum. They use ray diagrams to show how shadows are formed when an opaque object blocks the path of light, and how the size of a shadow changes with the distance between the light source and the object.

该主题从光源开始——发光体（自身发光的物体，如太阳）和非发光体（反射光的物体）。学生们了解到光在真空中沿直线传播，速度约为300,000,000 m/s。他们使用光线图来展示当不透明物体挡住光路时影子是如何形成的，以及影子的大小如何随光源与物体之间距离的变化而改变。

Reflection is a major focus. Using plane mirrors, students measure angles of incidence and reflection, and discover that the angle of incidence equals the angle of reflection. They learn to draw accurate ray diagrams with a normal line — a dotted line at 90° to the mirror surface at the point of incidence. The concept of a virtual image (same size, laterally inverted, same distance behind the mirror as the object is in front) is introduced without complicated ray constructions.

反射是一个重点。使用平面镜，学生测量入射角和反射角，发现入射角等于反射角。他们学习绘制带有法线（在入射点处与镜面成90°的虚线）的精确光线图。引入了虚像的概念（大小相等、左右颠倒、像在镜后的距离等于物体在镜前的距离），无需复杂的光路作图。

Refraction and dispersion are gently touched upon, often through demonstrations with a glass block or prism. Students observe how light bends when it passes from air into glass and back into air, and how white light splits into the colours of the spectrum (red, orange, yellow, green, blue, indigo, violet). These ideas lay the foundation for more advanced optics in later years, but Year 7 focuses on careful observation and description.

折射和色散被温和地触及，通常通过玻璃砖或三棱镜的演示来进行。学生们观察光从空气进入玻璃再进入空气时如何弯曲，以及白光如何被分解成光谱颜色（红、橙、黄、绿、蓝、靛、紫）。这些概念为今后更高级的光学学习奠定基础，但七年级的重点在于细致的观察和描述。

8. The Particle Model and States of Matter | 粒子模型与物质状态

Although often shared with chemistry, the particle model is a core physics concept that explains the behaviour of solids, liquids, and gases. Year 7 students learn that all matter is made up of tiny particles that are constantly moving. In solids, particles are closely packed in a regular pattern and vibrate in fixed positions. In liquids, particles are close but can slide past each other. In gases, particles are far apart and move rapidly in all directions.

虽然经常与化学内容共享，但粒子模型是解释固体、液体和气体行为的核心物理概念。七年级学生了解到所有物质都由不断运动的微小粒子组成。在固体中，粒子紧密排列成规则图案并在固定位置振动。在液体中，粒子彼此靠近但可以相互滑动。在气体中，粒子相距很远并向各个方向快速运动。

These differences explain properties such as whether a substance flows, can be compressed, or has a fixed volume and shape. Students might use the particle model to explain diffusion (the spreading of particles from an area of high concentration to low concentration) and gas pressure (caused by particles colliding with the walls of a container). Simple kinetic theory demonstrations, such as adding dye to water at different temperatures, help make these ideas concrete.

这些差异解释了物质是否可流动、可被压缩或具有固定的体积和形状等性质。学生们可以使用粒子模型来解释扩散（粒子从高浓度区域向低浓度区域的散播）和气压（由粒子撞击容器壁引起）。简单的运动理论演示，例如在不同温度的水中加入染料，有助于使这些概念具体化。

Changes of state — melting, freezing, boiling, evaporation, condensation, and sublimation — are explained in terms of energy transfer and changes in particle arrangement. Students learn that temperature stays constant during a change of state even though energy is still being supplied, because the energy is used to break bonds between particles rather than raise temperature.

状态变化——熔化、凝固、沸腾、蒸发、凝结和升华——被用能量转移和粒子排列的变化来解释。学生们了解到，在状态变化过程中即使仍在持续供能，温度仍保持不变，这是因为能量被用于打破粒子间的键而不是提高温度。

9. Space and the Solar System | 太空与太阳系

The CCEA curriculum encourages an appreciation of the vast scales of space. Year 7 pupils explore the structure of the Solar System: the Sun as a star at the centre, and the eight planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune) orbiting it. They learn the difference between inner rocky planets and outer gas giants, and begin to use units like the astronomical unit (AU) to express distances within the Solar System.

CCEA课程鼓励学生认识宇宙的浩瀚尺度。七年级学生探索太阳系的结构：太阳是位于中心的恒星，以及绕其运行的八大行星（水星、金星、地球、火星、木星、土星、天王星、海王星）。他们了解内圈的岩石行星与外圈的气态巨行星之间的区别，并开始使用天文单位（AU）等单位来表示太阳系内的距离。

The Earth’s rotation (24 hours) causes day and night, while its revolution around the Sun (365.25 days) along with the tilt of its axis causes the seasons. Students use models and torches to demonstrate these effects. Gravity is revisited here — the Sun’s gravity keeps planets in their orbits, and the Earth’s gravity keeps the Moon in orbit around us. This reinforces the earlier work on non-contact forces.

地球的自转（24小时）引起昼夜更替，而其绕太阳的公转（365.25天）加上地轴的倾斜则造成了季节变化。学生们使用模型和手电筒来演示这些效果。此处再次提及万有引力——太阳的引力使行星保持在轨道上，而地球的引力使月球围绕我们运行。这强化了之前关于非接触力的学习。

Pupils may also learn about natural satellites (moons), artificial satellites, and the difference between asteroids, comets, and meteors. A sense of wonder is nurtured, but the focus stays on the observable patterns in the sky, such as the phases of the Moon and why we only see one side of the Moon from Earth. These observational skills align well with the practical investigation strand.

学生们还可能学习自然卫星（月球）、人造卫星以及小行星、彗星和流星之间的区别。求知的好奇心得到培养，但重点仍在可观测的空中模式，如月相变化以及为何我们从地球上只能看到月球的一面。这些观察技能与实验探究主线非常吻合。

10. Developing Practical and Analytical Skills | 实验与分析技能的培养

Throughout all topics, CCEA places a heavy emphasis on Working Scientifically. In Year 7 physics, this means planning investigations, choosing appropriate equipment, identifying independent, dependent and control variables, and constructing data tables. Students are taught to present results using bar charts and line graphs, and to spot patterns or trends in data. They learn to write a conclusion that references the evidence gathered.

贯穿所有主题，CCEA非常重视“科学地工作”。在七年级物理中，这意味着规划探究、选择合适的设备、识别自变量、因变量和控制变量，并构建数据表格。学生被教导要使用条形图和线图来展示结果，并发现数据中的规律或趋势。他们学习撰写参照所收集证据的结论。

Evaluating an experiment is a key skill. Students consider whether their results are reliable (by looking at repeats and consistency), whether the method is valid (did it test what it set out to test?), and what improvements could be made if they were to repeat the investigation. Common sources of error, such as reaction time in using a stopwatch or parallax error in reading a ruler, are discussed. This reflective process makes them more critical thinkers.

评价实验是一项关键技能。学生们考虑他们的结果是否可靠（通过查看重复性和一致性）、方法是否有效（它是否测试了预定要测试的内容？），以及如果他们要重新进行该探究可以做出哪些改进。讨论了常见的误差来源，如使用秒表时的反应时间或读取尺子时的视差误差。这一反思过程使他们成为更具批判性的思考者。

Mathematical skills appropriate to Year 7 are integrated: using simple formulae such as speed = distance / time (often with no rearranging, just plugging numbers in), calculating mean values from several readings, and working with decimals and units. Accuracy in measurement and using the correct number of decimal places is encouraged. These skills are not only vital for physics but also transferrable across all sciences and mathematics.

适当七年级的数学技能被整合在内：使用简单公式，如速度 = 距离 / 时间（通常无需变形，只需代入数字），根据多次读数计算平均值，以及处理小数和单位。鼓励测量的准确性并使用正确的小数位数。这些技能不仅对物理至关重要，而且可以迁移到所有科学和数学学科中。

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📚 Year 7 CCEA Physics: Core Concepts Overview | Year 7 CCEA 物理：核心知识点梳理

Welcome to your Year 7 CCEA Physics revision guide. Physics explains how the universe behaves — from tiny particles to huge galaxies. This article summarises the key concepts you will meet in your first year, covering forces, energy, electricity, magnetism, waves and space. Each section is designed to help you understand the ‘big ideas’ and prepare for tests.

欢迎来到 Year 7 CCEA 物理复习指南。物理解释了宇宙的运作方式——从微小的粒子到巨大的星系。这篇文章梳理了你第一年将会遇到的核心概念，包括力、能量、电学、磁学、波和太空。每一部分都旨在帮助你理解”大观念”并为考试做好准备。

1. What is Physics? | 什么是物理学？

Physics is the study of matter, energy and the interactions between them. In Year 7, you will explore how forces change motion, why objects fall, how electricity flows, what makes sounds loud or quiet, and how the Earth moves in space. Being curious and asking ‘why’ is the first step to thinking like a physicist.

物理学是研究物质、能量及其相互作用的学科。在七年级，你将探索力如何改变运动、为什么物体会下落、电流如何流动、什么使得声音响亮或轻柔，以及地球如何在太空中运动。保持好奇心并问”为什么”是像物理学家一样思考的第一步。

2. Forces: Pushes and Pulls | 力：推和拉

A force is a push or a pull. Forces can change an object’s speed, direction or shape. We measure forces in newtons (N), using a force meter. A force is a vector quantity — it has both size (magnitude) and direction. Arrows can represent forces; the longer the arrow, the bigger the force.

力是推或拉。力可以改变物体的速度、方向或形状。我们用力计测量力，单位是牛顿 (N)。力是矢量——它具有大小和方向。箭头可以表示力；箭头越长，力越大。

When forces on an object are balanced, the object stays still or moves at a steady speed. Unbalanced forces cause acceleration, deceleration or a change in direction. Friction is a force that opposes motion and often produces heat.

当物体所受的力平衡时，物体保持静止或匀速运动。不平衡的力会导致加速、减速或方向改变。摩擦力是阻碍运动的力，常常产生热量。

3. Gravity, Mass and Weight | 重力、质量与重量

Gravity is a non-contact force that pulls objects towards each other. On Earth, gravity pulls everything towards the centre of the planet. Mass is the amount of matter in an object, measured in kilograms (kg). Weight is the force of gravity on an object and is measured in newtons (N).

重力是一种把物体拉向彼此的非接触力。在地球上，重力把一切拉向地心。质量是物体所含物质的多少，用于克 (kg) 衡量。重量是作用在物体上的重力，用牛顿 (N) 衡量。

weight = mass × gravitational field strength
W = m × g, where g ≈ 10 N/kg on Earth

重量 = 质量 × 重力场强度
W = m × g, 地球上的 g ≈ 10 N/kg

Your mass stays the same everywhere, but your weight changes on different planets because the gravitational field strength changes. For example, the Moon’s gravity is about 1.6 N/kg, so you would weigh much less there.

你的质量在任何地方都保持不变，但重量在不同星球上会改变，因为重力场强度不同。例如，月球的重力场强度约为 1.6 N/kg，所以你在那里会轻得多。

4. Energy: Types and Transfers | 能量：类型与转化

Energy is the ability to do work. It comes in different forms: kinetic (movement), thermal (heat), light, sound, electrical, chemical, nuclear, gravitational potential and elastic potential. The unit of energy is the joule (J).

能量是做功的能力。它有不同形式：动能（运动）、热能（热）、光能、声能、电能、化学能、核能、重力势能和弹性势能。能量的单位是焦耳 (J)。

The law of conservation of energy states that energy cannot be created or destroyed, only transferred from one form to another. For example, when a torch is switched on, chemical energy in the battery → electrical energy → light energy + thermal energy.

能量守恒定律指出，能量不能凭空产生或消灭，只能从一种形式转化为另一种形式。例如，手电筒打开时，电池的化学能 → 电能 → 光能 + 热能。

5. Renewable and Non-renewable Energy | 可再生与不可再生能源

Non-renewable resources are finite and will eventually run out. They include fossil fuels (coal, oil, natural gas) and nuclear fuels. Burning fossil fuels releases carbon dioxide and contributes to climate change.

不可再生资源储量有限，最终会耗尽。它们包括化石燃料（煤、石油、天然气）和核燃料。燃烧化石燃料会释放二氧化碳，加剧气候变化。

Renewable resources can be replenished naturally. Examples are solar, wind, wave, tidal, hydroelectric, geothermal and biomass. These sources produce little or no greenhouse gases during operation, but they can depend on weather and location.

可再生资源可以自然补给。例子有太阳能、风能、波浪能、潮汐能、水力发电、地热和生物质。这些能源在使用过程中产生很少或不产生温室气体，但可能取决于天气和地理位置。

6. Electric Circuits | 电路

An electric circuit is a closed loop that allows current to flow. It needs a power source (cell or battery), wires and a component such as a bulb or buzzer. We draw circuits using standard symbols for each component.

电路是允许电流流动的闭合回路。它需要电源（电池或电池组）、导线和如灯泡或蜂鸣器这样的元件。我们用标准符号绘制电路图。

Current is the flow of electric charge, measured in amperes (A) using an ammeter. In a simple series circuit, the current is the same everywhere. If a switch is open, the circuit is incomplete and no current flows.

电流是电荷的流动，用电流表测量，单位是安培 (A)。在简单的串联电路中，各处电流相同。如果开关断开，电路不完整，没有电流流动。

7. Conductors and Insulators | 导体与绝缘体

Materials that allow electric current to pass through easily are called conductors. Most metals like copper, aluminium and iron are good conductors because they have free electrons that can move. Graphite (a form of carbon) is also a conductor.

容易让电流通过的材料叫作导体。大多数金属如铜、铝和铁是良导体，因为它们有可以自由移动的电子。石墨（碳的一种形式）也是导体。

Insulators are materials that do not let current flow through them. Plastic, rubber, glass and dry wood are good insulators. Insulators are used to coat wires and to keep us safe from electric shocks.

绝缘体是不允许电流通过的材料。塑料、橡胶、玻璃和干木材是良好的绝缘体。绝缘体用于包裹导线，保护我们免受电击。

8. Magnetism | 磁学

A magnet has two poles: north (N) and south (S). Like poles repel each other; unlike poles attract. The magnetic field is the area around a magnet where magnetic forces act. Field lines point from north to south and are closest together where the field is strongest.

磁铁有两个极：北极 (N) 和南极 (S)。同极相斥；异极相吸。磁场是磁铁周围磁力作用的区域。磁感线从北极指向南极，在磁场最强的地方最密集。

The Earth acts like a giant bar magnet, and a compass needle points to magnetic north. An electromagnet is made by winding a coil of wire around an iron core and passing a current through it. Electromagnets can be turned on and off and are used in scrapyard cranes and electric bells.

地球就像一个巨大的条形磁铁，指南针指向磁北极。电磁铁由绕在铁芯上的线圈通以电流制成。电磁铁可以开关，用于废料场起重机、电铃等。

9. Sound and Hearing | 声音与听觉

Sound is produced when an object vibrates back and forth. These vibrations travel through a medium (solid, liquid or gas) as a longitudinal wave. Sound cannot travel through a vacuum because there are no particles to carry the vibration.

物体来回振动时产生声音。这些振动通过介质（固体、液体或气体）以纵波的形式传播。声音无法在真空中传播，因为没有粒子承载振动。

The pitch of a sound depends on its frequency — how many vibrations per second, measured in hertz (Hz). High-frequency sounds have a high pitch. The loudness depends on the amplitude of the wave; bigger vibrations make louder sounds. Our ear has an eardrum that vibrates when sound waves hit it.

声音的音调取决于它的频率——每秒钟振动的次数，单位是赫兹 (Hz)。高频率的声音音调高。响度取决于波的振幅；振幅越大声音越响。我们的耳朵有鼓膜，在声波撞击时振动。

10. Light and Seeing | 光与视觉

Light is a form of energy that travels in straight lines. We see objects because light reflects off them and enters our eyes. A shadow forms when an opaque object blocks the light path.

光是沿直线传播的能量形式。我们看到物体是因为光从物体表面反射进入我们的眼睛。当不透明物体挡住光路时，就会形成影子。

The law of reflection states: angle of incidence = angle of reflection. Both angles are measured from the normal, an imaginary line at 90° to the surface. A plane mirror forms a virtual image that is upright and the same size as the object, but laterally inverted (left and right are swapped).

反射定律表明：入射角 = 反射角。这两个角都是从法线（一条与表面成 90° 的假想线）测量。平面镜形成正立、等大的虚像，但左右颠倒。

White light can be split into the colours of the rainbow (red, orange, yellow, green, blue, indigo, violet) using a prism. This is called dispersion. The colour we see depends on which wavelengths of light are reflected.

白光可以通过棱镜分解成彩虹的颜色（红、橙、黄、绿、蓝、靛、紫），这叫作色散。我们看到的颜色取决于哪些波长的光被反射。

11. The Solar System and Earth’s Movements | 太阳系与地球的运动

Our Solar System contains the Sun, eight planets, dwarf planets, moons, asteroids and comets. The four inner rocky planets are Mercury, Venus, Earth and Mars. The four outer gas giants are Jupiter, Saturn, Uranus and Neptune. Earth orbits (revolves around) the Sun once every 365.25 days, causing years and seasons.

我们的太阳系包含太阳、八大行星、矮行星、卫星、小行星和彗星。四颗内岩质行星是水星、金星、地球和火星。四颗外气态巨行星是木星、土星、天王星和海王星。地球每 365.25 天围绕太阳公转一圈，产生年和季节。

Earth rotates on its tilted axis once every 24 hours, which gives us day and night. The side facing the Sun experiences day, while the opposite side is in night. The tilt of the axis, combined with the orbit, causes the seasons: when the Northern Hemisphere tilts towards the Sun, it is summer there.

地球每 24 小时绕其倾斜的地轴自转一圈，带来白天和黑夜。面向太阳的一面是白昼，背面则是黑夜。地轴的倾斜结合公转产生了季节：当北半球倾向太阳时，那里是夏天。

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📚 Year 7 CCEA Physics: 2026 Exam Changes & Trends | 七年级CCEA物理：2026年考试变化与趋势

As we approach 2026, CCEA is set to introduce significant updates to the way Year 7 Physics is assessed within the Northern Ireland Curriculum. These changes are designed to reflect modern educational research, boost practical skills, and ensure that students are better equipped for the demands of GCSE Science. From the content taught to the format of tests, a number of shifts are on the horizon. This article explores every major area you need to know about the upcoming exam changes and trends in Year 7 CCEA Physics.

随着2026年的临近，CCEA计划对北爱尔兰课程中七年级物理的评估方式进行重大更新。这些变化旨在反映现代教育研究成果、提升实践技能，并确保学生能更好地应对GCSE科学的要求。从教学内容到考试形式，一系列转变即将到来。本文将深入探讨你所需要了解的关于七年级CCEA物理即将到来的考试变化和趋势的每一个重要领域。

1. Overview of Key Changes for 2026 | 2026年主要变化概览

From 2026, CCEA will introduce updated assessments for Key Stage 3 Science, with a sharp focus on Physics concepts. The main changes include a shift towards more skills-based testing, the possible introduction of on-screen examinations, and a revised syllabus that integrates modern topics such as renewable energy and space physics. These adjustments aim to better prepare students for GCSE studies and real-world applications.

从2026年起，CCEA将对关键阶段3的科学评估进行更新，重点关注物理概念。主要变化包括转向更多以技能为导向的测试、可能引入机考，以及修订后的教学大纲纳入了可再生能源和空间物理学等现代课题。这些调整旨在让学生更好地为GCSE学习和实际应用做好准备。

Teachers will also notice a change in how marks are allocated, with greater weighting given to experimental design and data analysis. Instead of simply recalling facts, students will need to demonstrate how they apply knowledge to unfamiliar situations, a trend that mirrors international standards in science education.

教师还会注意到分数分配方式的变化，实验设计和数据分析将占据更大比重。学生不再仅仅是回忆事实，而是需要展示如何将知识应用于陌生情境，这一趋势与国际科学教育标准相呼应。

2. Revised Curriculum Content in Physics | 物理课程内容修订

The 2026 syllabus for Year 7 Physics will see an expansion beyond traditional topics. While core areas like Forces, Energy, Electricity, and the Particle Model of Matter remain, new content will include an introduction to waves, basic astronomy, and sustainable energy sources. For instance, students might explore how solar panels work or calculate the speed of a wave using the relationship:

2026年七年级物理教学大纲将在传统课题之外有所扩展。虽然力、能量、电和物质粒子模型等核心领域仍然保留，但新内容将包括波的介绍、基础天文学和可持续能源。例如，学生可能会探索太阳能电池板的工作原理，或利用以下关系计算波速：

v = f × λ

where v is wave speed in metres per second (m/s), f is frequency in hertz (Hz), and λ (lambda) is wavelength in metres (m).

其中v是波速，单位为米每秒（m/s），f是频率，单位为赫兹（Hz），λ（拉姆达）是波长，单位为米（m）。

Another significant addition is the study of the Earth’s place in the Universe. This means Year 7 learners will compare the relative sizes of planets, understand lunar phases, and discuss the environmental impact of space exploration. By linking Physics to current global challenges, the revised content aims to make the subject more engaging and relevant.

另一个重要的新增内容是对地球在宇宙中位置的研究。这意味着七年级学生将比较行星的相对大小、理解月相，并讨论太空探索对环境的影响。通过将物理与当前的全球挑战联系起来，修订后的内容旨在使该学科更具吸引力和相关性。

3. Enhanced Skills-Based Assessment | 加强基于技能的评估

A cornerstone of the 2026 changes is the greater emphasis on skills such as planning investigations, collecting data, and evaluating evidence. A typical exam question might present data from an experiment on friction and ask students to identify anomalies or suggest improvements to the method. This moves away from simple memory tests and rewards critical thinking.

2026年变化的一个基石是更加重视规划调查、收集数据和评估证据等技能。典型的考题可能会给出一组来自摩擦力实验的数据，要求学生识别异常值或提出改进方法的建议。这不再只是简单的记忆测试，而是奖励批判性思维。

To succeed, students should practise writing clear, structured conclusions based on evidence. For example, ‘As the mass of the object increased, the force needed to pull it at a constant speed also increased, showing a direct relationship.’ Consistent use of scientific terminology will be essential to access the higher mark bands.

要取得成功，学生应练习基于证据撰写清晰、有条理的结论。例如，“随着物体质量的增加，以恒定速度拉动它所需的力也增加，表明呈正比关系。” 持续使用科学术语对于获得较高分数段至关重要。

4. The Rise of Digital Exams | 数字化考试的兴起

CCEA has been trialling on-screen assessments, and 2026 could be the year when digital exams become an option or a requirement for some Year 7 Physics modules. Digital platforms allow for interactive simulations—imagine being asked to build a circuit virtually, measure the current, and then answer questions based on your own readings. This format can test practical understanding in a way that pen‑and‑paper cannot.

CCEA一直在试行机考，2026年可能成为某些七年级物理模块数字化考试成为选项或要求的一年。数字化平台允许进行交互式模拟——想象一下，要求你在虚拟环境中搭建一个电路，测量电流，然后根据你自己的读数回答问题。这种形式能够以纸笔考试无法做到的方式测试实践理解。

The table below outlines some key differences between traditional and digital assessments:

下表概述了传统评估和数字化评估之间的一些主要区别：

While digital exams offer many advantages, learners must become comfortable with typing short answers and using on‑screen calculators. Schools are likely to increase the use of platforms such as CCEA’s own online portal for practice tasks throughout the year.

虽然数字化考试具有许多优势，但学习者必须习惯于输入简短答案和使用屏幕上的计算器。学校很可能会增加对CCEA自有在线门户等平台的使用，以全年进行练习任务。

5. Greater Emphasis on Practical Investigations | 更加重视实验探究

Practical work has always been central to Physics, but from 2026 the assessment of hands‑on skills will be formalised. Students may be required to keep a lab book that records their planning, observations, and evaluations of experiments carried out in class. This portfolio could contribute directly to the final grade, replacing a portion of the written exam.

实验工作一直是物理学的核心，但从2026年起，对动手技能的评估将变得正规化。学生可能需要保留一本实验记录本，记录他们对课堂实验的规划、观察和评估。这份档案可能直接计入最终成绩，取代部分笔试。

Common investigations for Year 7 will include measuring the speed of a trolley down a ramp, exploring the factors that affect the resistance of a wire, and investigating how the mass of an object affects its acceleration under a constant force. The key is to understand how to control variables, make repeat measurements, and calculate mean values accurately.

七年级常见的探究活动将包括测量小车沿斜坡下滑的速度、探索影响导线电阻的因素，以及研究物体质量如何影响其在恒力作用下的加速度。关键在于理解如何控制变量、进行重复测量并准确计算平均值。

6. New Question Formats and Command Words | 新题型和指令词

Exam papers will feature a wider variety of question styles. In addition to standard multiple‑choice and short‑answer questions, you can expect ‘error spotting’ items where you must identify mistakes in a circuit diagram or an experimental method. There will also be more extended writing tasks that require you to explain a Physics phenomenon in your own words.

试卷将呈现更多样化的题型。除了标准的选择题和简答题外，你可能会遇到“找错”题，需要你找出电路图或实验方法中的错误。同时，还会有更多的拓展写作任务，要求你用自己的话解释物理现象。

Command words are becoming more specific. Understanding exactly what each one requires is vital:

指令词正变得更加具体。准确理解每个指令词的要求至关重要：

• State – give a short, factual answer (e.g., ‘State the unit of force.’).
• Describe – say what happens or what you see, without explaining why (e.g., ‘Describe the motion of the car from the graph.’).
• Explain – give reasons or a scientific mechanism (e.g., ‘Explain why the balloon moves forwards when air escapes.’).
• Calculate – perform a mathematical operation, always showing your working (e.g., ‘Calculate the pressure exerted by the block.’).
• Evaluate – assess the strengths and weaknesses, often of experimental data or a conclusion.

• 陈述——给出简短的事实性答案（例如，“陈述力的单位。”）。
• 描述——说明发生了什么或者你看到了什么，无需解释原因（例如，“根据图表描述汽车的运动。”）。
• 解释——给出理由或科学机制（例如，“解释为什么空气逸出时气球会向前移动。”）。
• 计算——进行数学运算，始终写出计算步骤（例如，“计算该物块产生的压强。”）。
• 评价——评估优缺点，通常是针对实验数据或结论。

7. Updated Mark Schemes and Grade Boundaries | 更新后的评分方案和等级界限

The new mark schemes will reward quality of scientific communication as well as correct content. In extended response questions, a portion of marks will be allocated for logical structure, accurate spelling of keywords, and correct use of units. This means even a correct final answer may not earn full marks if the reasoning isn’t clearly shown.

新的评分方案将同时奖励科学交流的质量和正确的知识内容。在拓展回答题中，一部分分数将分配给逻辑结构、关键词的准确拼写以及单位的正确使用。这意味着即使最终答案正确，如果推理过程没有清晰展示，也可能无法获得满分。

Grade boundaries are expected to shift slightly as the assessment style changes. Because stronger practical skills are being tested, schools predict a wider distribution of results early on, but over time students will adapt. The key is to focus on understanding rather than rote learning, because examiners are looking for evidence of genuine comprehension.

随着评估风格的变化，预计等级界限会略有变动。由于正在测试更强的实践技能，学校预计早期成绩分布会更广，但随着时间的推移，学生将会适应。关键是要注重理解而非死记硬背，因为考官在寻找真正理解的证据。

8. Integration of Sustainability and Real-World Contexts | 融入可持续发展与现实情境

Questions in 2026 exams will increasingly be set in contexts that relate to the environment, technology, and everyday life. You might be asked to calculate the energy transferred by a wind turbine over several hours, or to explain the Physics behind a bicycle’s braking system. This approach not only makes the subject more interesting but also helps students see the relevance of what they are learning.

2026年考试中的问题将越来越多地设置在与环境、科技和日常生活相关的情境中。你可能会被要求计算一台风力发电机在几小时内传递的能量，或者解释自行车制动系统背后的物理原理。这种方法不仅让学科更有趣，也帮助学生看到所学内容的相关性。

Specifically, the topic of Energy will include calculations of efficiency in home appliances and comparisons of insulation materials. Students will need to use data on energy consumption, measured in kilowatt‑hours (kWh), and relate this to cost and environmental impact. Such tasks build a bridge between classroom Physics and responsible citizenship.

具体来说，能量这个课题将包括计算家用电器的效率以及比较绝缘材料。学生需要使用以千瓦时（kWh）为单位的能耗数据，并将其与成本和环境影响联系起来。这些任务在课堂物理和负责任的公民意识之间架起了一座桥梁。

9. How to Adapt Your Revision Strategy | 如何调整你的复习策略

With the shift towards skills and application, revision needs to move beyond reading notes. Active techniques such as creating flashcards for key equations, drawing mind maps that link topics, and practising past‑paper questions under timed conditions will become even more essential. For Physics, you should memorise the fundamental relationships that appear on the equation sheet, for example:

随着向技能和应用的转变，复习需要超越阅读笔记。积极的学习技巧变得更为重要，例如为关键方程制作抽认卡、绘制连接各课题的思维导图，以及在计时条件下练习历年真题。对于物理，你应该记住公式表中出现的基本关系式，例如：

speed = distance / time    or    force = mass × acceleration

However, knowing the formula is not enough; you must be able to rearrange it and convert units confidently. Try explaining a concept aloud to a friend or recording yourself—this helps identify gaps in your understanding. Make sure to practise the new command‑word requirements by writing model answers and checking them against official mark schemes.

然而，仅仅知道公式是不够的；你必须能够熟练地变换公式并转换单位。尝试向朋友大声解释一个概念，或自己录音——这有助于发现理解中的漏洞。务必通过书写典范答案并根据官方评分方案检查，来练习新的指令词要求。

10. Recommended Resources and Support | 推荐资源与支持

CCEA provides a range of support materials for the updated specification, including specimen papers, exemplar student responses, and teacher guidance documents. These are available on the official CCEA website and are invaluable for understanding the standard expected. Additionally, many schools will run after‑school sessions to familiarise students with the digital testing platforms.

CCEA为更新后的课程说明提供了一系列支持材料，包括样卷、学生回答范例和教师指导文件。这些都在CCEA官网上可以找到，对于理解期望的标准非常有价值。此外，许多学校将举办课后辅导，让学生熟悉数字化测试平台。

A useful list of starting points includes:

一份有用的起点清单包括：

• CCEA Subject Microsite for Science and Technology
• BBC Bitesize – Key Stage 3 Physics (Northern Ireland)
• Interactive simulations on PhET (phet.colorado.edu) for circuits, forces, and waves
• Revision guides tailored to the CCEA 2026 specification (check publication dates)
• Your teacher’s own resources and lab book guidance

• CCEA科学与技术学科专题网站
• BBC Bitesize – 关键阶段3物理（北爱尔兰）
• PhET（phet.colorado.edu）上有关电路、力和波的互动模拟
• 针对CCEA 2026年课程说明的复习指南（请查看出版日期）
• 老师自己的资源和实验记录指导

11. Expected Trends in Student Performance | 学生表现的预期趋势

As the new assessment style beds in, teachers anticipate a period of adjustment. Initially, some students may find the increased focus on applying knowledge challenging, but those who engage actively with practical work and digital tools are likely to progress faster. Over two or three exam cycles, the overall results are expected to stabilise, with fewer marks lost on straightforward recall and more differentiation coming from higher‑order thinking questions.

随着新的评估风格逐渐落实，教师们预计会有一段适应期。最初，一些学生可能会觉得加强知识应用的要求具有挑战性，但那些积极参与实验和数字化工具的学生很可能会进步得更快。经过两三个考试周期后，整体成绩预计将趋于稳定，在直接记忆题上丢的分会减少，而高阶思维题将带来更大的区分度。

There is a strong push to close the gender gap in Physics, and the revised approach, which foregrounds context and real‑world problem solving, may encourage a broader range of students to see themselves as ‘Physics people’. Schools will monitor performance data closely and adjust teaching methods to ensure that every learner can meet the new demands.

目前正大力推动缩小物理学科中的性别差距，而修订后的方法强调情境和现实问题解决，可能会鼓励更广泛的学生群体将自己视为“学物理的人”。学校将密切监测成绩数据并调整教学方法，以确保每位学习者都能满足新的要求。

12. Looking Ahead: Beyond 2026 | 展望2026年之后

The 2026 changes are not an endpoint but part of a continuous evolution in science education. CCEA will likely gather feedback from the first year of new assessments and refine the examination papers further. Future trends may include even greater use of adaptive testing, where the difficulty of questions adjusts based on a student’s answers, and more collaborative project work assessed through digital portfolios.

2026年的变化并非终点，而是科学教育持续演变的一部分。CCEA很可能会从新评估实施的第一年收集反馈，并进一步完善试卷。未来的趋势可能包括更多地使用自适应测试，即问题难度根据学生的回答进行调整，以及通过数字档案评估更多的合作项目作业。

For now, the best approach for Year 7 students is to stay curious, learn from mistakes, and recognise that Physics is not just a collection of equations but a powerful tool for understanding the universe. By embracing the new emphasis on skills and real‑world connections, you can turn these exam changes into an opportunity to become a more confident and capable young scientist.

目前，对于七年级学生来说，最好的方法就是保持好奇心，从错误中学习，并认识到物理不仅仅是一堆方程式，而是理解宇宙的有力工具。通过拥抱对技能和现实世界联系的新重视，你可以将这些考试变化转化为一个机遇，成为一个更自信、更有能力的年轻科学家。

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📚 Year 7 CCEA Physics: Comprehensive Syllabus Breakdown | Year 7 CCEA 物理：课程大纲全面解析

Welcome to our detailed breakdown of the Year 7 CCEA Physics syllabus. In Northern Ireland, Year 7 marks the start of Key Stage 3, where physics is integrated within the broader Science and Technology curriculum. This guide unpacks every major topic, explains key concepts, and offers practical advice to help students succeed. Whether you are a student, parent, or tutor, understanding the syllabus is the first step towards mastering the subject.

欢迎阅读我们针对 Year 7 CCEA 物理大纲的全面解析。在北爱尔兰，Year 7 是 Key Stage 3 的起始年级，物理内容被整合在更广泛的”科学与技术”课程中。本指南将逐一拆解各个重要主题，解释核心概念，并提供实用建议以帮助学生取得进步。无论你是学生、家长还是导师，了解课程大纲是掌握这门学科的第一步。

1. Introduction to the CCEA Year 7 Physics Curriculum | CCEA Year 7 物理课程简介

The CCEA Year 7 Physics curriculum is designed to build foundational scientific literacy. It covers forces, energy, electricity, magnetism, waves, and Earth in space. Practical skills are woven throughout, emphasizing scientific enquiry and safe experimentation. Students are expected to develop their ability to ask questions, gather evidence, and draw conclusions.

CCEA Year 7 物理课程旨在建立基础科学素养。它涵盖力、能量、电、磁、波以及地球在太空中的位置。实践技能贯穿始终，强调科学探究和安全实验。学生需要培养提出问题、收集证据并得出结论的能力。

The syllabus is divided into several thematic units. The table below summarizes the core areas and typical learning outcomes.

课程大纲分为若干主题单元。下表总结了核心领域和典型学习成果。

2. Forces and Motion | 力与运动

Understanding forces is central to physics. In Year 7, students learn to identify contact and non-contact forces. A force is a push or a pull that can change an object’s speed, direction, or shape. Gravity is the force that attracts objects towards the centre of the Earth. Friction acts between surfaces and opposes motion. Air resistance is a type of friction experienced by objects moving through air.

理解力是物理学的核心。在 Year 7，学生将学习识别接触力和非接触力。力是一种推或拉，可以改变物体的速度、方向或形状。重力是将物体吸引向地心的力。摩擦力作用于表面之间并阻碍运动。空气阻力是物体在空气中运动时所受的一种摩擦力。

Balanced forces result in no change in motion; unbalanced forces cause acceleration or deceleration. Students often use simple equipment like forcemeters (newtonmeters) to measure forces in newtons (N). Speed is calculated as distance divided by time. The formula is often written as:

平衡力不会改变运动状态；非平衡力会导致加速或减速。学生通常使用测力计（弹簧秤）来测量以牛顿（N）为单位的力。速度的计算方式为距离除以时间。公式通常写作：

speed = distance ÷ time

Typical investigations include measuring the speed of a toy car down a ramp or exploring how different surfaces affect friction.

典型的探究活动包括测量玩具车沿斜坡滑下的速度，或研究不同表面对摩擦力的影响。

3. Energy – Forms and Transfers | 能量——形式与转移

Energy is a unifying concept in physics. Year 7 pupils learn that energy can exist in many forms: kinetic (movement), thermal (heat), light, sound, electrical, chemical, and gravitational potential. Energy cannot be created or destroyed; it can only be transferred from one store to another or converted from one form to another. This is the principle of conservation of energy.

能量是物理学中一个统一的概念。Year 7 学生要学习能量可以以多种形式存在：动能（运动）、热能（热）、光能、声能、电能、化学能和重力势能。能量不能被创造或消灭，只能从一个储存库转移到另一个储存库，或从一种形式转换为另一种形式。这就是能量守恒定律。

Common energy transfer diagrams (Sankey diagrams) are introduced to show energy flow. For example, in a battery-powered torch, chemical energy in the battery is converted to electrical energy, then to light and thermal energy. Students are encouraged to identify energy transfers in everyday devices.

常见的能量转移图（桑基图）会被引入以展示能量流动。例如，在一个电池供电的手电筒中，电池中的化学能转换为电能，然后转化为光能和热能。鼓励学生识别日常设备中的能量转移。

Renewable and non-renewable energy resources may be touched upon, linking to environmental awareness. Simple experiments, such as observing a wind-up toy or dropping a ball, help consolidate these ideas.

课程可能会涉及可再生能源和不可再生能源，与环保意识相结合。简单的实验，例如观察发条玩具或掉落一个球，有助于巩固这些概念。

4. Electricity – Simple Circuits | 电——简单电路

The electricity topic introduces the basic building blocks of circuits. Students learn to draw and interpret circuit diagrams using standard symbols for a cell (battery), switch, bulb (lamp), buzzer, and motor. A complete circuit is needed for current to flow; any break will stop the flow. Conductors (like metals) allow current to pass easily, while insulators (like plastic or glass) do not.

电学主题介绍电路的基本组成部分。学生学习使用标准符号绘制和解读电路图，符号包括电池、开关、灯泡、蜂鸣器和马达。电流要流动就需要一个完整的回路；任何断路都会使电流停止。导体（如金属）允许电流轻易通过，而绝缘体（如塑料或玻璃）则不能。

Current is measured in amperes (amps) using an ammeter connected in series. Voltage (potential difference) is measured in volts using a voltmeter connected in parallel. Pupils investigate how adding more bulbs or batteries affects brightness, which introduces the idea of resistance but at a basic level.

电流以安培为单位，使用串联的安培计测量。电压（电势差）以伏特为单位，使用并联的伏特计测量。学生探究增加更多灯泡或电池如何影响亮度，这会引入电阻的概念，但仅限于基础层面。

Safety is paramount: students are taught never to experiment with mains electricity and to always handle low-voltage circuits under supervision.

安全至关重要：教育学生切勿用市电做实验，并始终在监督下操作低压电路。

5. Magnetism | 磁学

Magnetism captures students’ imagination. Year 7 begins with the properties of bar magnets: they have north and south poles. Like poles repel; unlike poles attract. Magnetic materials, primarily iron, nickel, and cobalt, are attracted to magnets, while non-magnetic materials are not. The concept of a magnetic field is introduced visually using iron filings or plotting compasses around a bar magnet.

磁学能激发学生的想象力。Year 7 从条形磁铁的特性开始：磁铁有北极和南极。同名磁极相互排斥，异名磁极相互吸引。磁性材料（主要是铁、镍和钴）会被磁铁吸引，而非磁性材料则不会。通过铁屑或小磁

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