In-Depth Analysis of Past Paper Questions for Year 10 Eduqas Science | 十年级Eduqas科学真题深度解析

📚 In-Depth Analysis of Past Paper Questions for Year 10 Eduqas Science | 十年级Eduqas科学真题深度解析

Past papers are the single most effective revision resource for Year 10 Eduqas Science. They reveal exactly how examiners test knowledge, the style of questioning, and the level of detail required to secure top marks. This article provides a comprehensive breakdown of past paper trends, dissects command words, and offers subject-specific strategies so you can approach every question with confidence and precision.

历年真题是十年级Eduqas科学最有用的复习资源。它们精准地展现了考官考查知识的方式、出题风格以及获得高分所需的答题详细程度。本文全面解析真题趋势，拆解指令词，并提供针对各学科的答题策略，让你自信而精准地应对每一道题目。

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1. Understanding the Structure of Eduqas Science Papers | 理解Eduqas科学试卷结构

Eduqas GCSE Science papers are divided into distinct sections covering Biology, Chemistry and Physics. For Combined Science, each paper is 1 hour 15 minutes and worth 60 marks; for Separate Sciences, papers are 1 hour 45 minutes long and worth 80 marks. The questions are a mix of multiple-choice, short answer, structured, and extended response, often linked by a common theme or data set.

Eduqas GCSE科学试卷分为生物、化学和物理不同板块。综合科学每份试卷时长1小时15分钟，总分60分；单科科学试卷时长1小时45分钟，总分80分。题型包括选择题、简答题、结构化问答和长篇作答，常围绕同一主题或数据组串联展开。

Typically, the first few questions target straightforward recall of key facts and definitions worth 1–2 marks. These gradually evolve into questions that require application of knowledge to unfamiliar contexts, analysis of graphs or tables, and evaluation of experimental methods. Recognising this tiered difficulty helps you pace yourself and allocate time accordingly.

试卷开头的题目通常考查基本知识点和定义的直接回忆，每题1–2分。随后逐渐过渡到要求将知识应用于陌生情境、分析图表以及评价实验方法的题目。认清这种难度递进有助于你合理分配答题时间。

Key features include bullet-pointed answer spaces for short structured questions, lined boxes for extended writing, and specially marked questions that assess the quality of written communication (QWC). Always check the front cover for any specific instructions regarding calculators, equations sheets, and time allocations for each section.

试卷特点包括：短结构问题配有带项目符号的答题区，长篇写作题预留横线框，以及明确标注考查书面表达质量（QWC）的题目。务必检查试卷封面关于计算器、公式表和各部分时间安排的具体说明。

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2. Command Words Decoded | 指令词解读

Command words dictate exactly what the examiner expects from your answer. In Eduqas Science papers, the most frequent command words are ‘state’, ‘describe’, ‘explain’, ‘calculate’, ‘compare’, ‘evaluate’ and ‘suggest’. Failing to distinguish between them is a leading cause of lost marks.

指令词明确规定了考官对你答案的期望。Eduqas科学试卷中最常见的指令词包括’state（陈述）’、’describe（描述）’、’explain（解释）’、’calculate（计算）’、’compare（比较）’、’evaluate（评价）’和’suggest（建议）’。未能区分这些指令词是失分的主要原因之一。

‘State’ requires a short, factual answer without explanation. For example, ‘State the type of bond in a water molecule.’ The correct response is simply ‘Covalent.’ ‘Describe’ wants you to give a detailed account of what is shown or what happens, often with reference to trends or patterns, without giving reasons. ‘Explain’, however, demands scientific reasoning and links between cause and effect, usually using ‘because’ or ‘due to’.

‘State’要求给出简短的事实性答案，无需解释。例如’陈述水分子中的化学键类型’，正确答案仅需’共价键’。’Describe’要求你详细描述所展示的内容或发生的事情，通常要提到趋势或模式，但不给出原因。而’explain’则需要科学推理，阐述因果关系，常使用’因为’或’由于’。

‘Calculate’ means perform a mathematical operation and show your working to gain full marks; the final answer alone is often not enough. ‘Compare’ expects similarities and differences, ideally using comparative phrases like ‘higher than’ or ‘whereas’. ‘Evaluate’ involves judging the reliability, validity or advantages and disadvantages of something, supported by evidence. When you see ‘suggest’, a straightforward recalled answer may not exist; you must apply your scientific knowledge to a new scenario and offer a plausible explanation or prediction.

‘Calculate’要求进行数学运算并展示解题过程才能获得满分；仅给出最终答案往往不够。’Compare’要求给出异同点，最好使用诸如’高于’或’而’等比较性短语。’Evaluate’需要对某事物的可靠性、有效性或优缺点做出判断，并用证据支持。当看到’suggest’时，往往没有可以直接背诵的答案；你必须将科学知识应用于新情境，给出合理的解释或预测。

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3. Applying Knowledge to Unfamiliar Contexts | 将知识应用于陌生情境

Eduqas examiners frequently embed core principles in novel scenarios, such as using a diagram of an unfamiliar organism in Biology or a new industrial process in Chemistry. The underlying science remains the same, but students often panic. Train yourself to identify the key concept being tested before you start writing.

Eduqas考官经常把核心原理埋入陌生情境，例如生物中使用一种不熟悉的生物图表，或化学中引入一项新的工业流程。底层的科学原理并未改变，但学生往往因此慌乱。一定要训练自己在动笔前先识别出题目考查的核心概念。

For instance, a Biology question showing a graph of enzyme activity in an exotic bacterium is still about the effect of pH or temperature on enzyme shape and active site denaturation. In Physics, a question on the stopping distance of a new electric car still relies on the relationship between speed, reaction time and braking force. In Chemistry, a question about extracting a rare metal from its ore still tests reactivity series and displacement.

例如，生物题中展示一种特殊细菌体内酶活性的图表，依然是在考查pH值或温度对酶结构及活性位点变性的影响。物理题中关于新款电动车刹车距离的问题，依然依赖速度、反应时间和制动力的关系。化学题中有关从矿石提炼稀有金属的设问，依然在考查金属活动性顺序和置换反应。

Practice by isolating the core ‘big ideas’ from past paper contexts. Highlight the specific command word and then rephrase the question in your own words: ‘This is really asking me how increasing temperature affects the rate of photosynthesis.’ This mental translation keeps you calm and focused on delivering the relevant scientific content.

练习时，从真题情境中剥离出核心’大概念’。高亮具体的指令词，然后用自己的话重新表述问题：’这其实是在问我提高温度如何影响光合作用速率。’这种内心的转译能让你保持冷静，专注于写出相关的科学内容。

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4. Tackling Data Analysis Questions | 攻克数据分析题

Data analysis questions are a staple of Eduqas Higher Tier papers and appear regularly in Foundation Tier too. You will be presented with tables, bar charts, line graphs, scatter diagrams or sometimes pie charts. The examiner expects you to extract information, identify patterns, and draw conclusions using numerical evidence.

数据分析题是Eduqas高等级试卷的必考题，也经常出现在基础等级试卷中。题目会提供表格、条形图、折线图、散点图或饼图。考官希望你能提取信息、识别模式并用数值证据得出结论。

When describing a graph, always quote data points. Instead of writing ‘The temperature went up quickly,’ write ‘The temperature increased from 20 °C to 65 °C between 0 and 4 minutes.’ Use the correct units and refer to both axes. If the graph shows a plateau, state that the rate of change decreases after a certain point and use data to show this.

描述图表时，务必引用具体数据。不要写’温度快速上升’，而应写’温度在0至4分钟内从20 °C升至65 °C’。使用正确单位并指明两条坐标轴。如果图形出现平台期，要指出变化率在某点后下降，并用数据加以说明。

For calculations involving gradients or rates, show your method clearly. For example, if calculating the rate of reaction from a graph of gas volume against time, draw a tangent if required and use change in y ÷ change in x. Write out the formula in words before substituting numbers: Rate = volume of gas produced ÷ time taken.

对于涉及斜率或速率的计算，要清晰地展示你的解题方法。例如，如果根据气体体积随时间变化的曲线图计算反应速率，必要时画出切线并使用y变化量÷x变化量。代入数字前先用文字写出公式：速率 = 产生气体的体积 ÷ 所用时间。

Finally, always relate the data trend back to the scientific concept. An increasing line on a reaction rate graph does not just show ‘more gas’, it shows that the reaction is fastest at the start because reactant concentration is highest. Making this link between data and theory is where high marks are awarded.

最后，一定要将数据趋势与科学概念联系起来。反应速率曲线向上不仅表明’更多的气体’，还表明反应开始时速率最快，因为此时反应物浓度最高。在数据和理论之间建立这种联系正是得分的关键所在。

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5. Mastering Calculation-Based Problems | 掌握计算类题目

Mathematics makes up at least 20% of the marks in Eduqas Science, including Combined Science. You will encounter equations such as:

density = mass ÷ volume

数学部分至少占Eduqas科学（含综合科学）总分的20%。你会遇到这样的方程式：

密度 = 质量 ÷ 体积

And for Physics:

force = mass × acceleration

物理中还有：

力 = 质量 × 加速度

Always begin a calculation by listing the known quantities with their symbols and units. Then write down the equation in its standard form before rearranging. In Eduqas, you are often required to rearrange the equation yourself. For example, if you are given mass and density and need to find volume, you must rearrange to volume = mass ÷ density.

开始计算时，务必先列出已知量及其符号和单位。然后写出标准方程式，再进行变形。在Eduqas考试中，通常需要你自己进行公式变形。例如，如果给出质量和密度要求体积，你必须变形为体积 = 质量 ÷ 密度。

Significant figures and standard form matter. The data in the question should guide your precision: if values are given to 2 significant figures, your final answer should generally be to 2 or 3 significant figures. Moreover, be comfortable with unit conversions. Past papers often require converting cm³ to m³ or kJ to J. Write the conversion factor explicitly to avoid mistakes.

有效数字和标准计数法很重要。题目中的数据应指引你的答案精确度：如果数值给出2位有效数字，你的最终答案通常也应保留2或3位有效数字。此外，要熟练掌握单位换算。真题常要求将cm³换算成m³或将kJ换算成J。明确写出换算系数以避免出错。

Show every step of your working on the paper; even if you make an arithmetic slip, the examiner can award marks for correct method. For multi-step calculations, such as using moles = mass ÷ Mᵣ, then using the mole ratio from a balanced equation, structure your answer in clearly labelled stages. This greatly reduces errors and makes it easier to check your work.

在试卷上展示每一步计算过程；即使算术出错，考官也可以给予方法分。对于多步计算，如先用物质的量 = 质量 ÷ 相对分子质量，再利用配平方程中的摩尔比，需要将答案分成标注清晰的步骤。这能极大减少错误并便于检查。

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6. Practical and Experimental Skills Questions | 实验技能题

Questions on required practicals are guaranteed in every Eduqas paper. Examiners will not simply ask you to repeat a method from memory. They want you to identify variables, justify the choice of equipment, explain safety precautions, evaluate the quality of data, and suggest improvements to an experimental procedure.

必做实验题必定出现在每一份Eduqas试卷中。考官不会直接让你凭记忆复述一个实验步骤，而是希望你识别变量、论证仪器选择、解释安全措施、评价数据质量并对实验步骤提出改进建议。

When asked to evaluate a method, always address three key aspects: precision, accuracy, and reliability. Precision refers to how close repeated measurements are to each other; accuracy is how close a measurement is to the true value. Reliability relates to the repeatability and reproducibility of results, which can often be improved by calculating a mean and excluding anomalies.

要求评价方法时，一定要论述三个关键方面：精密度、准确度和可靠性。精密度指重复测量结果之间的接近程度；准确度是测量值与真实值之间的接近程度。可靠性涉及结果的可重复性和可再现性，通常可通过计算平均值并剔除异常值来提高。

For variables, the independent variable is what you change, the dependent variable is what you measure, and control variables must be kept constant. In a typical question, you may be given a description of an experiment and asked to identify one variable and explain how to control it. Always be specific: instead of saying ‘keep the temperature the same’, state ‘use a thermostatically controlled water bath at 25 °C and monitor with a thermometer’.

对于变量，自变量是你改变的量，因变量是你测量的量，控制变量必须保持恒定。在典型题目中，可能会给你一个实验描述，要求你识别一个变量并解释如何控制它。务必要具体：不要只说’保持温度不变’，而要说’使用25°C恒温水浴锅，并用温度计监控’。

Eduqas also loves questions on sources of error and how to minimise them. Random errors can be reduced by taking multiple readings and calculating an average. Systematic errors require recalibrating an instrument or changing the experimental approach. Be ready to sketch simple diagrams of apparatus, such as a distillation setup or a circuit for measuring resistance, and label key parts clearly.

Eduqas也偏爱考查误差来源及其最小化方法的题目。随机误差可通过多次读数取平均值来减少；系统误差则需要重新校准仪器或变更实验方法。准备好绘制简单的仪器示意图，如蒸馏装置或测量电阻的电路图，并清晰地标注关键部件。

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7. Extended Response and Quality of Written Communication | 长篇答题与书面表达质量

Questions marked with an asterisk (*) or labelled with QWC assess your ability to structure a coherent, logical argument using good English. These are typically worth 6 marks and require a sustained response built around scientific keywords and logical sequencing.

标有星号（*）或标注QWC的题目考查你用流畅的英文组织条理清晰、逻辑连贯的论述的能力。这类题目通常值6分，要求你围绕科学关键词和逻辑顺序构建完整作答。

Begin your answer with an introductory sentence that restates the question and outlines your line of reasoning. Then develop 2–3 key points in separate paragraphs, each backed by a scientific explanation. Use connectives such as ‘consequently’, ‘therefore’, ‘this means that’, and ‘as a result’. Finally, conclude if the question demands a judgement, for instance ‘Overall, the data supports the hypothesis because…’.

作答时先写一个开头句，重述问题并概述你的推理思路。然后用2–3个独立段落展开要点，每一段配以科学解释。使用’因此’、’由此’、’这意味着’以及’结果是’等连接词。最后，如果问题要求做出判断，要给出结论，例如’总体而言，数据支持该假设，因为…’。

Spelling, punctuation and grammar are explicitly assessed. Practise writing key scientific terms: ‘carbohydrate’, ‘photosynthesis’, ‘electromagnetic’, ‘exothermic’, ‘acceleration’. Avoid vague pronouns like ‘it’ without a clear antecedent. If you refer to ‘the enzyme’, make sure the reader knows which enzyme you are discussing. Sentences should be complete and paragraphs should not exceed 4–5 lines on the page.

拼写、标点和语法会被明确评分。练习书写关键科学术语：’carbohydrate（碳水化合物）’、’photosynthesis（光合作用）’、’electromagnetic（电磁的）’、’exothermic（放热的）’、’acceleration（加速度）’。避免使用指代不明的代词，如没有清晰先行词的’它’。如果你提到’该酶’，必须确保读者知道你讨论的是哪一种酶。句子要完整，每个段落不超过4–5行。

In Biology, an extended response may ask you to explain the process of osmosis in a plant cell. Structurally, define osmosis and state the conditions for net movement, describe what happens when the cell is in a concentrated solution, then in pure water, comparing turgid and flaccid states, and link each effect to the cell wall’s role.

在生物中，一道长篇作答可能会要求你解释植物细胞中的渗透作用。结构上，先定义渗透作用并说明净移动的条件，接着描述细胞在浓溶液中以及在纯水中分别发生的变化，比较饱满与质壁分离的状态，并将每种效果与细胞壁的作用联系起来。

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8. Common Mistakes and How to Avoid Them | 常见错误及避免方法

One of the most recurrent errors is neglecting to address the command word fully. Students often describe a graph when they were asked to explain it, losing the chance to demonstrate cause-and-effect reasoning. Underline the command word and keep checking your answer against it.

最常见的错误之一是没有完全回应指令词。学生常常在要求’解释’时却只是’描述’图表，从而错失展示因果推理的机会。用下划线标出指令词，并不断对照你的答案是否满足指令要求。

Another pitfall is providing a vague description when a quantitative statement is required. If a question asks ‘How does the data show that the reaction stopped?’, do not just say ‘The line goes flat.’ Instead: ‘After 120 seconds, the volume of hydrogen produced remained constant at 36 cm³, indicating the reaction was complete.’ Using numbers demonstrates that you have truly interpreted the evidence.

另一个陷阱是在需要定量陈述时给出模糊的描述。如果题目问’数据如何显示反应停止了？’，不要只说’线变平了’。而应说：’120秒后，产生的氢气体积稳定在36 cm³，表明反应已完成。’使用数据展示你真正解读了证据。

Units are another common source of avoidable marks lost. Write units after numbers in short answers, and in calculations, give the unit with the final answer. If the mark scheme requires ‘kg’ and you write ‘g’, the answer is incorrect. Pay special attention to derived units such as m/s, J/kg°C, or Ω (ohm). Also, ensure your graph axes are labelled with quantity, symbol and unit, e.g. ‘Time (s)’.

单位是另一个常见的可避免失分点。在简答题中，数字后需带上单位；在计算题中，最终答案要配单位。如果评分方案要求’kg’而你写了’g’，答案就算错误。特别注意导出单位，如 m/s、J/kg°C 或 Ω（欧姆）。同时确保图表坐标轴标注了物理量、符号和单位，例如’Time (s)’。

Misreading the scope of a question is frequent. If asked about ‘the importance of biodiversity’, do not simply write everything you know about biodiversity. Link it directly to ecosystem stability, food security, and potential medical resources as specified in the Eduqas specification. Similarly, in Physics, if asked about ‘energy transfers in a moving car’, focus on kinetic energy, thermal energy from friction, and work done against air resistance — not just ‘fuel is used’.

误读问题范围也很常见。如果问到’生物多样性的重要性’，不要只是写下你所知道的关于生物多样性的一切。要像Eduqas考纲要求的那样，直接将其与生态系统稳定性、粮食安全和潜在医疗资源联系起来。同样，在物理中，当问到’行驶汽车中的能量转移’，要聚焦动能、摩擦产生的热能以及克服空气阻力做的功——而不仅仅是’燃烧了燃料’。

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9. Using Mark Schemes Effectively | 高效使用评分方案

Mark schemes are not just for checking right or wrong. They reveal the precise phrasing examiners expect. After completing a past paper under timed conditions, use the mark scheme to annotate your answers with corrections and additional detail. Write out model answers for the questions you found most challenging; this builds a bank of correct scientific language in your memory.

评分方案不仅仅是用来核对对错。它们揭示了考官所期望的精确表述。在计时条件下完成一份真题后，用评分方案对自己的答案进行批注，写上修正和补充细节。针对你觉得最有挑战性的题目，写出标准答案范例；这能在你记忆中建立一个正确科学语言库。

Pay close attention to the ‘allow’ and ‘do not allow’ sections in the Eduqas mark schemes. For example, in Chemistry, ‘molecules’ may not be allowed for giant covalent structures; use ‘atoms’ or ‘ions’ correctly. In Biology, ‘blood sugar level’ is sometimes allowed instead of ‘blood glucose concentration’, but ‘blood water level’ would not be accepted for osmosis questions.

密切关注Eduqas评分方案中的’可以接受’和’不接受’部分。例如，在化学中，对于巨型共价结构，可能不接受’molecules（分子）’一词；要正确使用’atoms（原子）’或’ions（离子）’。在生物中，有时可以用’blood sugar level（血糖水平）’代替’blood glucose concentration（血糖浓度）’，但在渗透作用问题中，’blood water level（血液水分水平）’不会被接受。

Look for the breakdown of marks in extended QWC questions. The rubric often allocates marks for factual content (up to 4 marks) and quality of communication (2 marks). This tells you that to get top marks, you need at least four distinct scientific points woven into a well-structured paragraph. Merely writing elegantly without factual depth will not earn full marks.

留心长篇QWC题目中的分值分配。评分细则通常将分数分为事实内容（最多4分）和表达质量（2分）。这告诉你，要得高分，你需要在结构良好的段落中融入至少四个不同的科学要点。仅仅文笔优美而缺乏事实深度是无法获得满分的。

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10. Time Management and Revision Strategy with Past Papers | 时间管理与真题复习策略

Map out your revision by creating a ‘past paper timetable’ that cycles through Biology, Chemistry and Physics topics. Start by attempting one paper open-book to build familiarity, then gradually move to closed-book, timed sessions. Record your scores for each topic area to identify weak spots.

制定一个真题时间表，循环复习生物、化学和物理专题。开始时，先尝试开卷完成一套试卷以建立熟悉度，然后逐步过渡到闭卷限时模拟。记录每个专题的得分，以发现薄弱环节。

In the actual exam, allocate roughly 1 minute per mark. For a 60-mark Combined Science paper, you have 75 minutes, leaving about 15 minutes for checking. If you are stuck on a 3-mark question for more than 4 minutes, star it, move on, and return later. Often, a later stimulus or data table may jog your memory.

在实际考试中，大致按每分钟1分的比例分配时间。对于一份60分的综合科学试卷，你有75分钟，约留下15分钟检查。如果在一道3分题上卡住超过4分钟，就标星号跳过，稍后再回看。后面的题干或数据表格往往能唤醒你的记忆。

Use past papers to practise the skill of reading the question stem and predicting what the sub-questions might be. Over time, you will notice patterns: a titration question in Chemistry is almost always followed by a mole calculation; a graph of enzyme activity is often followed by a description and an explanation of denaturation; a circuit diagram leads to resistance and potential difference calculations. This mental anticipation speeds up your response.

利用真题训练阅读题干并预测可能出现的子问题的能力。渐渐地，你会注意到固定模式：化学中的滴定问题几乎总是跟着摩尔计算；酶活性的图表之后常要求描述变性和解释原因；电路图则引向电阻和电势差的计算。这种内心预判能加快你的答题速度。

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11. Biology-Specific Tips | 生物专项技巧

Biology papers reward precise terminology. Never write ‘the body’ when you mean ‘the circulatory system’, ‘immune response’ or ‘endocrine glands’. For transport processes, distinguish clearly between diffusion, osmosis and active transport, noting that active transport requires energy from respiration.

生物试卷青睐精准的术语。当你想表达’循环系统’、’免疫反应’或’内分泌腺’时，绝不要笼统写成’the body（身体）’。对于运输过程，要明确区分扩散、渗透和主动运输，并指出主动运输需要呼吸作用提供的能量。

When explaining enzyme action, explicitly refer to the ‘complementary shape of the substrate and the active site’ and how high temperature ‘breaks hydrogen bonds, changing the shape of the active site so it is no longer complementary’. Avoid saying the enzyme ‘is killed’; use ‘denatured’. Diagrams of enzyme-substrate complexes often earn credit if labelled correctly.

解释酶的作用时，要明确提到’底物与活性位点的互补形状’，以及高温如何’破坏氢键，改变活性位点的形状使其不再互补’。避免说酶被’杀死’，应使用’变性’。正确标注的酶-底物复合物示意图通常也能得分。

In ecology and environment questions, data interpretation is crucial. Practise describing predator-prey cycles: ‘As the prey population increases, there is more food for predators, so the predator population increases. This reduces the prey population, which in turn leads to a decrease in predator numbers.’ Always link back to energy transfer and pyramids of biomass.

在生态和环境类题目中，数据解读至关重要。练习描述捕食者-猎物循环：’随着猎物数量增加，捕食者的食物增多，导致捕食者数量增加。这使猎物数量减少，继而导致捕食者数量下降。’一定要始终联系能量传递和生物量金字塔。

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12. Chemistry and Physics-Specific Insights | 化学与物理专项见解

Chemistry past papers heavily test chemical calculations, ion identification and bonding models. For balancing equations, use the methodical approach of writing an atom inventory on both sides. In questions about ionic bonding, draw the electron transfer with dots and crosses and then state the electrostatic attraction between oppositely charged ions as the reason the compound is held together. Remember that ‘ionic bonding’ is not just about full outer shells; it is about the attraction.

化学真题重点考查化学计算、离子鉴定和化学键模型。对于配平方程式，采用系统方法，先在方程式两边列出原子清单。在离子键问题中，用点叉图画出电子转移，然后陈述’带相反电荷离子间的静电引力’是将化合物维系在一起的原因。记住’离子键’不仅仅是关于最外层电子的满足，更在于这种引力。

In Physics, mastering formula triangles for equations such as speed = distance ÷ time, and calculating resultant forces, is essential. However, the deeper skill is explaining energy stores and pathways. When a ball is dropped, say ‘energy is transferred mechanically from the gravitational potential energy store to the kinetic energy store, with some energy dissipated as thermal energy to the surroundings due to air resistance’. Using the precise language of energy stores and pathways aligns with the specification.

在物理中，掌握速度 = 距离 ÷ 时间等公式的三角形记忆法以及计算合力是必备技能。然而，更深层的技能在于解释能量储存和转移路径。当球下落时，要说’能量通过机械做功从重力势能储存转移到动能储存，并有部分能量因空气阻力以热能形式耗散到周围环境中’。使用能量储存和转移路径的精准语言符合考纲要求。

For the required practical on resistance, be ready to describe an experiment to investigate how the length of a wire affects resistance. Mention an ammeter in series, a voltmeter in parallel, at least 5 different lengths, and how to keep temperature constant by switching off between readings. A well-labelled circuit diagram using standard symbols is often worth 2 marks on its own.

对于电阻的必做实验，准备好描述一个探究导线长度如何影响电阻的实验。要提到电流表串联、电压表并联、至少5种不同长度，以及如何在读数间隙断开电路以保持温度恒定。一张使用标准符号、标注清晰的电路图本身往往就值2分。

Published by TutorHao | Science Revision Series | aleveler.com

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