📚 Exam Techniques and Marking Criteria for Year 11 CAIE Physics | Year 11 CAIE 物理答题技巧与评分标准
Success in the Year 11 CAIE IGCSE Physics exam (0625) requires more than just understanding the concepts—it also demands smart exam techniques and a clear grasp of what examiners look for. This article will guide you through essential strategies, from time management to interpreting mark schemes, to help you maximize your scores.
要在 Year 11 CAIE IGCSE 物理考试（0625）中取得成功，不仅需要理解物理概念，更需要聪明的答题技巧和对评分标准的清晰把握。本文将引导你掌握从时间管理到理解评分方案的关键策略，帮助你充分发挥，取得高分。
1. Understanding the Exam Structure | 了解试卷结构
The CAIE IGCSE Physics exam consists of three papers for the Extended route: Paper 2 (Multiple Choice, 40 marks), Paper 4 (Theory Extended, 80 marks), and Paper 6 (Alternative to Practical, 40 marks). Paper 2 requires quick concept recognition; Paper 4 tests depth of understanding and extended writing; Paper 6 assesses practical skills. Knowing the format and mark allocation of each paper helps you allocate your revision time effectively.
CAIE IGCSE 物理考试（拓展路线）由三卷组成：Paper 2（选择题，40分）、Paper 4（论述题拓展卷，80分）和 Paper 6（实验替代卷，40分）。Paper 2 要求快速识别概念；Paper 4 测试理解的深度和长篇写作；Paper 6 考查实验技能。熟悉每份试卷的格式和分值分配，可以帮助你有效规划复习时间。
2. Time Management in the Exam | 考试时间管理
Good time management is critical. For Paper 2, you have 45 minutes for 40 questions, so aim for about 1 minute per question, leaving 5 minutes to check. For Paper 4, with 80 marks in 1 hour 15 minutes, spend roughly 1.5 minutes per mark. For Paper 6, plan accordingly. Always wear a watch and keep track of time.
良好的时间管理至关重要。Paper 2 有 45 分钟完成 40 道选择题，目标是每题约 1 分钟，留 5 分钟检查。Paper 4 满分 80 分，考试时长 1 小时 15 分钟，每分大约花 1.5 分钟。Paper 6 也要合理安排。务必戴手表，随时注意时间。
If you get stuck on a question, move on and return later. Do not spend 10 minutes on a 2-mark question—leave it, answer the rest, and then come back with fresh eyes.
如果被某题卡住，先跳过，稍后再回来。不要在一道 2 分的题目上花 10 分钟——先空着，完成其他部分，再以清醒的头脑回头处理。
3. Reading Questions Carefully | 仔细阅读题目
Many marks are lost because students misread the question. Pay close attention to command words such as "explain", "state", "calculate", and "suggest". Underline these words and note the unit required. Check whether the question asks for a numerical answer with a unit, a description, or a diagram.
很多失分是由于学生误读题目。请密切注意 "explain"、"state"、"calculate"、"suggest" 等指令词。划出这些词并注意所要求的单位。判断题目是要求带单位的数值答案、描述，还是画图。
Also check for conditional phrases like "starting from rest" (initial velocity u = 0), "constant speed" (acceleration = 0), or "at the top of motion" neous velocity = 0). These keywords give you immediate clues about which equations to use.
同样，注意题目中给出的条件，如 "从静止开始"（初速度 u = 0）、"匀速"（加速度 = 0）或 "在最高点"（瞬时速度为 0）。这些关键词直接提示你应该使用哪些方程。
4. Units and Significant Figures | 单位与有效数字
metre, second, kilogram, ampere). Your final answer should generally be given to 2 or 3 significant figures (s.f.), matching the precision of the data provided. Examiners accept answers within a range if you used g = 10 m/s² or 9.8 m/s², but always state which value you used.
最终答案一定要包含正确的单位。缺少单位通常会扣一分。计算时，除非特别说明，使用国际单位制（例如米、秒、千克、安培）。最终答案通常给出 2 或 3 位有效数字，与所给数据的精度一致。如果用 g = 10 m/s² 或 9.8 m/s²，考官会在一定范围内接受答案，但建议明确写出你所用的值。
Where the unit is part of the answer, such as N/kg or m/s, do not forget to write it. Even if a numerical value is correct, omitting the unit can throw away an easy mark.
如果单位是答案的一部分，如 N/kg 或 m/s，不要遗漏。即使数值正确，遗漏单位也会轻易丢掉一分。
5. Techniques for Calculation Questions | 计算题技巧
For calculation questions, always show your working. Even if the final answer is wrong, you can earn method marks for correct formula, substitution, and manipulation. Start by writing the formula, then substitute numbers, then calculate. Keep your work neat and logical.
对于计算题，务必展示计算步骤。即使最终答案错误，正确的公式、代入和转换也能获得方法分。先写出公式，然后代入数值，再计算。保持书写整洁、逻辑清晰。
v = u + at
d to rearrange an equation, do so carefully. For example, p = mv can be rearranged to m = p/v. Always substitute numbers after you have the subject isolated.
使用公式表上的正确方程。IGCSE 物理考试会提供公式表，但你必须知道如何应用每一个公式。如果需要变形公式，务必小心，例如 p = mv 可变形为 m = p/v。始终在将所求量分离后再代入数值。
6. Explanation and Description Questions | 解释题与描述题
"Explain" questions require you to state why something happens, using physics principles. For a question like "Explain why a ball falls towards the Earth," an acceptable
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