📚 Year 7 OCR Physics: Summer Preparation and Bridging Course | Year 7 OCR 物理：暑期预习与衔接课程
Welcome to the exciting world of physics! This summer bridging course is designed for Year 7 students following the OCR curriculum. It will help you build a strong foundation before the term begins, covering key ideas, essential skills, and the curiosity-driven mindset that makes physics so rewarding. Take your time, try the simple activities, and arrive in September confident and ready to explore how the universe works.
欢迎来到激动人心的物理世界！这门暑期衔接课程专为学习 OCR 课程的 Year 7 学生设计。它将帮助你在开学前打下扎实的基础，涵盖核心概念、关键技能以及让物理如此有意义的探索精神。慢慢来，尝试简单的活动，带着信心迎接九月，准备好探索宇宙的运作方式。
1. What is Physics? Thinking Like a Scientist | 什么是物理？像科学家一样思考
Physics is the study of matter, energy, and the forces that shape everything around us — from the tiniest particles to the largest galaxies. In Year 7, you will begin asking questions, making observations, and linking causes to effects. Physics is not just about learning facts; it is about understanding patterns, testing ideas, and explaining why things happen. Approach it with curiosity, and you will see the world differently.
物理是研究物质、能量以及塑造我们周围一切的力量的学科——从最小的粒子到最大的星系。在 Year 7，你将开始提问、观察并将原因与结果联系起来。物理不仅仅是学习事实；它是理解模式、检验想法并解释事物为何发生。带着好奇心去学习，你会用不同的眼光看世界。
2. Working Safely in the Laboratory | 实验室安全操作
Before any experiment, safety comes first. Always listen to your teacher’s instructions, wear safety goggles when required, and tie back long hair. Never run in the lab, do not eat or drink, and report any spills or breakages immediately. Learn the hazard symbols for flammable, corrosive, and toxic substances. A safe scientist is a good scientist — these habits will stay with you throughout your physics journey.
任何实验之前，安全第一。务必听从老师指导，必要时佩戴护目镜，束起长发。实验室内不得奔跑、饮食，如有溢出或破损立即报告。学习易燃、腐蚀性和有毒物质的危险标志。安全的科学家才是好科学家——这些习惯将伴随你的整个物理学习之旅。
3. The Scientific Method: From Question to Conclusion | 科学方法：从问题到结论
Physics experiments follow a logical process. Start with a question, form a hypothesis, identify variables (independent, dependent, and control), carry out the investigation, record results in a table, draw a graph, and write a conclusion that links back to the hypothesis. Understanding this method early will help you design fair tests and think critically about evidence.
物理实验遵循逻辑过程。提出问题，形成假设，确定变量（自变量、因变量和控制变量），开展研究，用表格记录结果，绘制图表，并写出与假设相联系的结论。早早理解这种方法将帮助你设计公平的测试并批判性地思考证据。
Hypothesis → Variables → Method → Results → Graph → Conclusion
假设 → 变量 → 方法 → 结果 → 图表 → 结论
4. Measurement and Units: Speaking the Language of Physics | 测量与单位：说物理的语言
In physics, every quantity has a unit. Length is measured in metres (m), mass in kilograms (kg), time in seconds (s), and temperature in degrees Celsius (°C) or Kelvin (K). You will use prefixes like kilo- (1000), centi- (1/100), and milli- (1/1000). Accurate measurement and reading scales correctly are core skills — practise converting between units and using measuring instruments such as rulers, stopwatches, and thermometers.
在物理中，每个量都有单位。长度以米（m）为单位，质量以千克（kg）为单位，时间以秒（s）为单位，温度以摄氏度（°C）或开尔文（K）为单位。你将使用诸如千（1000）、厘（1/100）和毫（1/1000）等前缀。准确测量和正确读取刻度是核心技能——练习单位之间的转换，并使用直尺、秒表和温度计等测量仪器。
| Quantity | Unit | Symbol |
| Length | metre | m |
| Mass | kilogram | kg |
| Time | second | s |
| Temperature | degree Celsius | °C |
量 单位 符号
5. Forces: Pushes, Pulls, and Motion | 力：推、拉和运动
Forces are pushes or pulls that can change an object’s speed, direction, or shape. They are measured in newtons (N). Gravity pulls objects towards Earth, friction opposes motion, and air resistance slows things down. When forces are balanced, an object stays still or moves at a constant speed. When unbalanced, it accelerates or decelerates. You will draw force arrows to show direction and size — a skill that builds up to free-body diagrams later.
力是推或拉，可以改变物体的速度、方向或形状。力的单位是牛顿（N）。重力将物体拉向地球，摩擦力阻碍运动，空气阻力减慢速度。当力平衡时，物体保持静止或匀速运动；当力不平衡时，物体会加速或减速。你将学习画出力的箭头来表示方向和大小——这项技能以后会发展为受力分析图。
Balanced forces: F₁ = F₂ → no change in motion
平衡力：F₁ = F₂ → 运动状态不变
6. Energy: The Currency of Physics | 能量：物理的通用货币
Energy makes things happen. It exists in different stores: kinetic (movement), thermal (heat), chemical, gravitational potential, elastic potential, and more. Energy can be transferred between stores by forces, heating, or electric currents. The law of conservation of energy states that energy cannot be created or destroyed, only transferred or converted. Think about a bouncing ball: gravitational potential turns into kinetic, then back again — with some energy spreading out as heat.
能量让一切发生。它存在于不同的储存形式中：动能（运动）、热能（热量）、化学能、重力势能、弹性势能等。能量可以通过力、加热或电流在储存库之间转移。能量守恒定律指出，能量不能被创造或毁灭，只能转移或转化。想一想弹跳的球：重力势能转化为动能，然后又转化回来——其中一些能量以热的形式散失。
- Kinetic energy — anything moving | 动能——任何运动的物体
- Gravitational potential energy — object raised above ground | 重力势能——物体被抬高
- Thermal energy — heat | 热能——热量
- Chemical energy — food, batteries | 化学能——食物、电池
7. Introduction to Electricity: Simple Circuits | 电的入门：简单电路
Electricity is the flow of electric charge, usually through a wire. A simple circuit needs a power source (cell or battery), wires, and a component like a bulb or buzzer. Current is measured in amperes (A) and flows from the positive to the negative terminal. You will build circuits, draw circuit diagrams using standard symbols, and learn the difference between series and parallel circuits. Always check that a circuit is complete before testing it — a break will stop the current.
电是电荷的流动，通常通过导线。一个简单的电路需要电源（电池）、导线和像灯泡或蜂鸣器这样的组件。电流以安培（A）为单位，从正极流向负极。你将搭建电路，用标准符号绘制电路图，并学习串联和并联电路的区别。测试之前一定要检查电路是否完整——断开就会阻止电流。
Circuit symbols to learn: cell, battery, lamp, switch (open and closed), buzzer, motor, resistor, variable resistor, ammeter, voltmeter.
要学的电路符号： 电池、电池组、灯泡、开关（断开和闭合）、蜂鸣器、电动机、电阻器、可变电阻器、电流表、电压表。
8. The Particle Model of Matter | 物质的粒子模型
All substances are made of tiny particles. In solids, particles are tightly packed in a regular pattern and vibrate in place. In liquids, particles are close together but can move past each other. In gases, particles are far apart and move rapidly in all directions. Changes of state — melting, freezing, boiling, condensing — can be explained by adding or removing energy, which changes particle movement. This model helps you understand density, pressure, and diffusion without needing to see atoms directly.
所有物质都由微小的粒子组成。固体中，粒子紧密排列成规则图案并在原地振动。液体中，粒子靠在一起但能相互滑过。气体中，粒子相距很远并朝各个方向快速移动。状态变化——熔化、凝固、沸腾、凝结——可以通过加入或移除能量来解释，这会改变粒子的运动。这个模型帮助你在无需直接看到原子的情况下理解密度、压力和扩散。
Solid → (melting) → Liquid → (boiling/evaporation) → Gas
固体 →（熔化）→ 液体 →（沸腾/蒸发）→ 气体
9. Waves: Sound and Light | 波：声音与光
Sound travels as a longitudinal wave caused by vibrations. It needs a medium (solid, liquid, or gas) to travel — it cannot move through a vacuum. The pitch of a sound depends on frequency, and loudness depends on amplitude. Light travels as a transverse wave and can move through a vacuum at about 300 000 000 m/s. You will investigate how light travels in straight lines, how shadows form, and how reflection works using mirrors. Think of everyday examples: echoes for sound, and periscopes for light.
声音以振动引起的纵波形式传播。它需要介质（固体、液体或气体）才能传播——不能在真空中传播。音调取决于频率，响度取决于振幅。光以横波传播，能在真空中以大约 300 000 000 米/秒的速度传播。你将研究光如何直线传播、影子如何形成以及反射如何用镜子工作。想一想生活中的例子：声音的回声，光的潜望镜。
Key comparison: Sound is slower than light — that’s why you see lightning before you hear thunder.
关键对比： 声音比光慢——这就是为什么你先看到闪电再听到雷声。
10. Space and our Place in the Universe | 太空与我们在宇宙中的位置
Year 7 physics often includes an introduction to astronomy. The Earth rotates on its axis once every 24 hours, causing day and night. It orbits the Sun once a year, giving us seasons due to the tilt of its axis. The Moon orbits Earth and reflects sunlight, showing phases from new moon to full moon. Our solar system consists of the Sun, eight planets, moons, asteroids, and comets. Gravity keeps everything in orbit. The scale of the universe is immense — start by learning the order of planets from the Sun.
Year 7 物理通常包括天文学入门。地球每 24 小时绕自转轴旋转一次，产生昼夜。它每年绕太阳公转一次，由于地轴倾斜而有了四季。月球绕地球运行并反射阳光，呈现出从新月到满月的月相。我们的太阳系由太阳、八颗行星、卫星、小行星和彗星组成。引力使一切保持在轨道上。宇宙的尺度无比巨大——从学习太阳系行星的顺序开始吧。
| Planet Order | 行星顺序 |
| Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune | 水星、金星、地球、火星、木星、土星、天王星、海王星 |
11. Summer Learning Toolkit: How to Prepare over the Holiday | 暑期学习工具包：假期如何预习
You don’t need to master everything now — just build a habit of curious observation. Try these simple tasks: measure the time it takes for a toy car to roll down a ramp at different heights; make a basic circuit with a battery, bulb, and wires at home (with adult supervision); record the phases of the moon for two weeks; or watch BBC Bitesize physics clips for KS3. Keep a summer science journal where you write one question each day — even “Why is the sky blue?” is a perfect physics question.
你不必现在就掌握所有知识——只需培养好奇观察的习惯。尝试这些简单的任务：测量玩具车从不同高度斜坡上滚下的时间；在家（在成人监督下）用电池、灯泡和导线制作基本电路；记录两周的月相；或观看 BBC Bitesize 针对 KS3 的物理短片。准备一本暑期科学日志，每天写下一个问题——即便是“天空为什么是蓝色的？”也是一个完美的物理问题。
- Read a popular science book aimed at 11–12-year-olds, like a Horrible Science collection.
- Download a free decibel meter app and measure sounds around your home — which is loudest?
- Play with magnets and list which materials they attract.
- Read通俗科普书籍，比如《可怕的科学》系列。
- 下载免费的分贝计应用，测量家里的声音——哪个最大声？
- 玩磁铁，列出它们吸引的材料。
12. Key Vocabulary and Concepts to Know Before September | 九月前需要掌握的关键词汇与概念
Familiarise yourself with these terms: force, energy, mass, weight, volume, density, current, voltage, resistance, cell, battery, series circuit, parallel circuit, solid, liquid, gas, melting, freezing, boiling, condensation, vibration, wave, pitch, amplitude, orbit, axis, gravity, friction. Understanding them broadly will give you a head start. You don’t have to memorise definitions — just be able to use them when describing everyday phenomena.
熟悉下列术语：力、能量、质量、重量、体积、密度、电流、电压、电阻、电池、电池组、串联电路、并联电路、固体、液体、气体、熔化、凝固、沸腾、凝结、振动、波、音调、振幅、轨道、地轴、重力、摩擦力。大致理解它们会让你领先一步。不需要背诵定义——只要能用来描述日常现象就行。
Remember, physics is about exploring how the world works, not just passing exams. Enjoy the process of discovery, ask lots of questions, and you’ll find Year 7 physics both fascinating and manageable. See you in the lab!
记住，物理是探索世界如何运作，而不仅仅是通过考试。享受发现的过程，多问问题，你会发现 Year 7 物理既迷人又容易掌握。实验室见！
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