📚 Year 7 CAIE Physics: Scientific Report Writing Framework & Model Answer | CAIE 7年级物理：实验报告写作框架与范文
In Year 7 CAIE Physics, you will often carry out investigations and need to write up your experiments clearly. A well-structured scientific report helps you to present your findings logically, making it easier for others to understand your method and results. This article provides a complete framework for writing a lab report and includes a model answer to guide you.
在CAIE 7年级物理课程中，你将经常进行探究活动，并需要清晰地撰写实验报告。一份结构良好的科学报告有助于你逻辑清晰地呈现研究成果，让读者更容易理解你的方法和结果。本文提供了一个完整的实验报告写作框架，并附上一篇范文来指导你。
1. Understanding Scientific Writing in Year 7 Physics | 理解7年级物理中的科学写作
Scientific writing is not the same as writing a story. It must be objective, concise, and based on evidence. In Year 7, you are expected to use the third person and the past tense when describing what you did, because the experiment has already been completed.
科学写作与写故事不同。它必须客观、简洁、基于证据。在7年级，你应当使用第三人称和过去时来描述你所做的实验，因为实验已经完成。
Always aim to explain the 'why' and 'how', not just 'what' happened. For example, instead of writing 'We got some results', you should write 'The time for 10 swings was measured and recorded.'
始终要解释“为什么”和“如何”，而不仅仅是“什么”发生了。例如，不要写“我们得到了一些结果”，而应写“测量并记录了10次摆动的时间”。
2. The Standard Structure of a Lab Report | 实验报告的标准结构
A typical lab report for Year 7 Physics follows this sequence: Title, Aim, Hypothesis, Equipment, Method, Results, Conclusion, and Evaluation. Each section has a specific purpose, and following this order keeps your report clear.
7年级物理典型的实验报告遵循以下顺序：标题、目的、假设、器材、方法、结果、结论和评价。每个部分都有特定功能，按此顺序撰写让报告清晰明了。
Your teacher may also ask for a Prediction and a Diagram. Check the task requirements carefully.
你的老师可能还会要求写出预测和示意图。请仔细核对任务要求。
3. Writing a Clear Title and Aim | 撰写清晰的标题与目的
The title should describe the experiment in a few words, e.g., 'Investigating how the length of a pendulum affects its period'. The aim is a single sentence starting with 'To investigate...' or 'To find out...', stating exactly what you are trying to discover.
标题应用几个词描述实验，例如“探究摆长如何影响摆的周期”。目的是一句话，以“探究……”或“查明……”开头，准确说明你想发现什么。
Example: Title: The effect of pendulum length on swing time. Aim: To investigate the relationship between the length of a pendulum and the time it takes for one complete swing.
例如：标题：摆长对摆动时间的影响。 目的：探究摆长与完成一次完整摆动所需时间的关系。
4. Formulating a Hypothesis and Prediction | 提出假设与预测
A hypothesis is a scientific guess based on prior knowledge. It should include a reason. For example, 'I think the longer the pendulum, the slower it will swing because the bob has to travel a greater distance.' A prediction is a more precise statement of what you expect to happen, often including numbers or patterns.
假设是基于已有知识的科学猜想，应包含理由。例如，“我认为摆越长，摆动越慢，因为摆锤需要移动更远的距离。” 预测是更精确的表述，说明你预期会发生的现象，通常包括数字或模式。
In a hanging pendulum, you might predict: 'If the pendulum length is doubled, the time for one swing will increase, but not double.'
在单摆实验中，你可以预测：“如果摆长加倍，一次摆动的时间会增加，但不会加倍。”
5. Listing Equipment and Describing the Method | 列出器材与描述方法
List all equipment in bullet points, be specific about quantities and sizes. For instance, '1 × 100 cm ruler, 1 × 50 g mass, 1 × stopwatch (0.01 s precision)' numbered steps in the past tense, allowing someone else to repeat the experiment exactly.
以项目符号列出所有器材，要具体说明数量和尺寸。例如，“1 × 100 cm尺子，1 × 50 g砝码，1 × 秒表（精度0.01 s）”。方法应用过去时写成编号步骤，让其他人能够完全重复实验。
Step 1: A 50 cm length of string was measured and attached to the clamp stand. Step 2: The pendulum was pulled back to a 30° angle and released. Step 3: The time for 10 complete swings was recorded and then divided by 10 to find the period.
步骤1：测量50 cm长的绳子并固定在铁架台上。步骤2：将摆锤拉至30°角后释放。步骤3：记录10次完整摆动的时间，然后除以10得到周期。
6. Presenting Results: Tables and Graphs | 呈现结果：表格与图表
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