📚 Year 11 Cambridge IGCSE Physics: Intensive Winter Holiday Revision Plan | 剑桥 Year 11 物理：寒假强化复习计划
Winter break is a decisive opportunity to consolidate your Cambridge IGCSE Physics knowledge. A structured, high-impact revision plan helps you bridge gaps, reinforce core concepts and sharpen exam technique. This guide provides a day-by-day framework covering the entire syllabus, from mechanics to atomic physics, so that you return to school confident and well-prepared.
寒假是巩固剑桥 IGCSE 物理知识的关键机会。一个有结构、高效率的复习计划能帮助你弥补差距、强化核心概念并提升应试技巧。本指南提供逐日框架，覆盖从力学到原子物理的整个大纲，确保你信心满满地重返校园。
The plan assumes roughly three to four weeks of holiday and about 2-3 hours of focused physics work per day. Every section below can be compressed or expanded, but the sequence matters: build concepts first, then drill past papers, then refine exam technique.
本计划假设假期约为三到四周，每天投入约 2–3 小时专注学习物理。下面每一节都可以压缩或扩展，但顺序很重要：先建立概念，再刷真题，最后打磨应试技巧。
1. Creating a Realistic Revision Timetable | 制定切实可行的复习时间表
Before diving into formulas, assess how many days you have before school resumes. Allocate daily 2-3 hour slots for physics, and divide the syllabus into manageable chunks such as 'Forces', 'Waves' and 'Electricity'. Keep weekends for full past papers without notes, and weekdays for topic-wise revision and correcting mistakes.
在深入公式之前，先评估开学前还有多少天。每天安排 2–3 小时的物理学习，将大纲划分为可管理的小块，例如"力"、"波"、"电学"。周末留出时间不看笔记完成整套真题，平日进行专题复习和错题纠正。
Build in buffer days for notoriously challenging topics such as electromagnetic induction and radioactivity. Use a simple spreadsheet or wall planner, and adjust your timetable each week based on your progress and confidence self-rating.
为众所周知的难点，如电磁感应和放射性，留出缓冲日。使用简单的电子表格或墙历规划，并根据你的进度和信心自评，每周调整时间表。
- Two short sessions (morning and evening) often beat one long session.
两个短时段（上午与晚上）通常优于一个长时段。 - Alternate heavy calculation topics with descriptive topics to reduce fatigue.
把计算量大的专题与描述性专题交替安排，以减轻疲劳。 - Always end a session by writing three things you learned without looking at notes.
每次学习结束时，合上笔记写下你学到的三件事。
Remember to include regular breaks and a variety of activities. Watching summary videos, drawing mind maps, and teaching a concept to a peer all count as effective revision.
记得安排规律休息和多样化活动。观看总结视频、绘制思维导图、把某个概念讲给同伴听，都算有效的复习方式。
2. Mapping the Syllabus: Mechanics | 梳理大纲：力学
celeration. The two core relationships are v = s / t and a = Δv / Δt. On a velocity-time graph the gradient gives acceleration and the area under the line gives distance travelled.
力学通常占分最多。从运动学开始：速率与速度、距离–时间图与速度–时间图、加速度。两个核心关系是 v = s / t 与 a = Δv / Δt。在速度–时间图上，斜率表示加速度，线下面积表示走过的距离。
s: balanced and unbalanced forces, friction, air resistance, terminal velocity, and Newton' orce × perpendicular distance), the principle of moments, centre of gravity and stability.
接着复习力：平衡力与不平衡力、摩擦力、空气阻力、终端速度，以及牛顿第二定律 F = m × a。重力 W = m × g，地球上 g 约为 9.8 N/kg。再扩展到力矩（力矩 = 力 × 垂直距离）、力矩平衡原理、重心与稳定性。
ons; work is W = F × s; power is P = E / t; efficiency = useful output ÷ total input × 100%. Pressure for solids is p = F / A, and in liquids p = ρ × g × h.
力学最后复习动量、能量与压强。动量 p = m × v，在碰撞中守恒；功 W = F × s；功率 P = E / t；效率 = 有用输出 ÷ 总输入 × 100%。固体压强 p = F / A，液体压强 p = ρ × g × h。
3. Thermal Physics and the Kinetic Model | 热物理与分子运动模型
Thermal physics questions reward precise vocabulary. Revise the kinetic particle model, Brownian motion, and how temperature relates to the average kinetic energy of particles. Be ready to explain gas pressure in terms of particle collisions with the container walls.
热物理题目奖励精确的用词。复习分子运动模型、布朗运动，以及温度与粒子平均动能的关系。要能用粒子与容器壁碰撞来解释气体压强。
d emitters. The two calculation formulas you must own are E = m × c × Δθ for specific heat capacity and E = m × L for latent heat.
热传递要掌握传导、对流与辐射，包括金属为何导热好、为何暗黑色表面是良好的吸收体和辐射体。必须熟练掌握的两个计算式是比热容 E = m × c × Δθ 与潜热 E = m × L。
ribing the specific heat capacity experiment, including why a lid and insulation reduce energy loss.
气体部分使用 p₁V₁ / T₁ = p₂V₂ / T₂，温度必须用开尔文。绝对零度为 −273 °C，因此 T(K) = θ(°C) + 273。练习描述比热容实验，包括为何要加盖和保温以减少能量损失。
4. Waves and Optics | 波与光学
asured in hertz, and that amplitude relates to energy. Distinguish transverse from longitudinal waves and give examples of each.
波是高频考点，因为它同时考查定义、计算与光路图。牢记波速 v = f × λ，频率单位是赫兹，振幅与能量有关。区分横波与纵波，并各举例子。
For reflection and refraction, use the law of reflection and Snell' lenses, be able to draw ray diagrams and use magnification = image height ÷ object height.
反射与折射要用法线两侧反射角等于入射角，以及斯涅尔定律形式 n = sin i / sin r。理解全内反射与临界角，并把这些概念与光导纤维、棱镜联系起来。透镜部分要会画光路图，并会用放大率 = 像高 ÷ 物高。
Sound is a longitudinal wave that needs a medium; ultrasound has a frequency above 20 kHz and is used in medical imaging and sonar. The electromagnetic spectrum runs from radio waves to gamma rays, and you should know one use and one hazard for each region.
声是纵波，需要介质；超声频率高于 20 kHz，用于医学成像与声呐。电磁波谱从无线电波到伽马射线，每一波段至少要记住一种用途与一种危害。
5. Electricity and Circuits | 电与电路
same everywhere. Voltage is the energy transferred per unit charge, and resistance follows V = I × R.
电学题目通常最有规律。从电荷与电流开始：电流 I = Q / t，串联电路中电流处处相等。电压是单位电荷转移的能量，电阻遵循 V = I × R。
/ R₂, so the combined resistance is always smaller than the smallest individual resistor.
串联电路中电阻相加：R = R₁ + R₂。并联电路中电压相等，总电阻满足 1 / R = 1 / R₁ + 1 / R₂，因此并联总电阻总是小于其中最小的单个电阻。
ic electricity is billed in kilowatt-hours, so practise converting between joules and kWh. Also revise static electricity, electric fields, and the I-V characteristics of a resistor, a filament lamp and a diode.
功率与能量每年必考：P = V × I、P = I² × R 与 E = P × t。家庭用电以千瓦时计费，因此要练习焦耳与 kWh 的换算。同时复习静电、电场，以及定值电阻、灯丝灯泡和二极管的 I–V 特性曲线。
6. Magnetism and Electromagnetic Induction: Buffer Zone | 磁与电磁感应：缓冲重点
Treat this topic as a designated buffer zone, because many students lose marks here. Revise magnetic field lines, the magnetic effect of a current, and the force on a current-carrying conductor in a magnetic field. Use Fleming's left-hand rule for the motor effect and be able to describe how a simple d.c. motor works.
把这一专题设为专门的缓冲重点，因为许多学生在这里失分。复习磁感线、电流的磁效应，以及磁场对通电导体的作用力。用弗莱明左手法则判断电动机效应，并能描述简单直流电动机的工作原理。
Electromagnetic induction is the reverse process: a changing magnetic field induces a voltage. Know Faraday's ideas qualitatively (more turns, stronger magnet, faster movement) and Lenz's law as a statement of energy conservation.
电磁感应是相反的过程：变化的磁场会感应出电压。定性掌握法拉第的思想（匝数更多、磁铁更强、运动更快），并把楞次定律理解为能量守恒的表述。
hy the core is laminated, why transformers only work with alternating current, and why power is transmitted at high voltage.
变压器依据 Vₚ / Vₛ = Nₚ / Nₛ，理想变压器满足 Vₚ × Iₚ = Vₛ × Iₛ。练习解释铁芯为何要叠片、变压器为何只对交流电工作、高压输电为何能减少损耗。
7. Atomic Physics and Radioactivity: Buffer Zone | 原子物理与放射性：缓冲重点
Atomic physics is short but full of precise definitions. Revise the structure of the atom, the terms proton, neutron, electron, nucleon number and proton number, and how to write nuclide notation such as ²³⁵U and ²²⁶Ra.
原子物理篇幅不长，但充满精确的定义。复习原子结构，掌握质子、中子、电子、核子数与质子数等术语，并会书写如 ²³⁵U 与 ²²⁶Ra 这样的核素符号。
For radioactivity, know the nature, penetration and ionising power of alpha, beta and gamma radiation. Alpha is stopped by paper, beta by a few millimetres of aluminium, and gamma is reduced but not fully stopped by thick lead. Write decay equations and check that nucleon numbers and proton numbers balance on both sides.
放射性方面，要掌握 α、β、γ 辐射的本质、穿透力与电离能力。α 可被纸挡住，β 可被几毫米铝挡住，γ 可被厚铅减弱但不能完全挡住。书写衰变方程，并检查两侧核子数与质子数是否守恒。
he uses of radioactivity in medicine and industry, together with the associated hazards and safety precautions.
半衰期计算出现频率很高。若样品从 80 g 降到 10 g，就是经过了三个半衰期，因此经过时间等于 3 × T½。此外要了解放射性在医学与工业中的应用，以及相应危害与安全防护措施。
8. Practical Skills and Experimental Questions | 实验技能与实验题
Practical skills are assessed both in written papers and in the alternative-to-practical paper, so never leave them to the last minute. Revise how to choose measuring instruments, record readings to the correct precision, and identify zero errors and parallax error.
实验技能既在笔试中考查，也在替代实验卷中考查，因此不要留到最后才复习。复习如何选择测量仪器、按正确精度记录读数，以及识别零点误差与视差误差。
When drawing tables, put the independent variable in the first column with its unit in the heading. When plotting graphs, choose a sensible scale, label both axes with quantity and unit, and draw a smooth line or line of best fit. The gradient of a straight-line graph usually has physical meaning.
画表格时，把自变量放在第一列，并在表头写上单位。作图时选择合理刻度、给两轴标注物理量与单位，画出平滑曲线或最佳拟合直线。直线图像的斜率通常具有物理意义。
- Describe a fair test: change one variable, control the rest, repeat for reliability.
描述公平实验：只改变一个变量，控制其余变量，重复测量以提高可靠性。 - Explain why repeat readings and averages reduce random error.
解释为何重复读数并取平均可减小随机误差。 - State one improvement for each method, such as insulation or using a set square.
针对每种方法给出一个改进，如加保温层或使用直角尺。
9. Formulas, Units and Significant Figures | 公式、单位与有效数字
Make a one-page formula sheet by hand rather than printing one. Writing each formula from memory, together with the quantity it calculates and its unit, is itself powerful revision.
手写一页公式表，而不是直接打印。凭记忆写出每个公式，连同它计算的物理量与单位，这本身就是高效的复习。
Check unit consistency before substituting numbers. Convert centimetres to metres, grams to kilograms, and minutes to seconds. Learn the standard prefixes: nano (10⁻⁹), micro (10⁻⁶), milli (10⁻³), kilo (10³), mega (10⁶) and giga (10⁹).
代入数字前先检查单位一致性。把厘米换成米、克换成千克、分钟换成秒。掌握标准词头：纳（10⁻⁹）、微（10⁻⁶）、毫（10⁻³）、千（10³）、兆（10⁶）与吉（10⁹）。
Give final answers to a sensible number of significant figures, usually two or three, and never more than the data provided. Use standard form for very large or very small values, and always add the correct unit to a numerical answer.
最终答案保留合理的有效数字，通常两到三位，且不应超过题目所给数据的精度。对于很大或很小的数值使用标准形式，并始终在数字答案后写上正确单位。
10. Past Papers and Exam Technique | 真题与应试技巧
From the second week onwards, sit at least two full past papers per week under timed conditions and without notes. Mark them yourself using the official mark scheme, then read the examiner report for that session to see where candidates commonly lost marks.
从第二周开始，每周至少限时、不看笔记完成两套完整真题。用官方评分方案自批，再阅读该考季的考官报告，了解考生常见的失分点。
For calculation questions, follow a fixed routine: write the formula, rearrange it, substitute values with units, calculate, then state the answer with its unit. Even when the final answer is wrong, correct working can earn method marks.
计算题遵循固定流程：写出公式、变形、代入带单位的数值、计算，最后写出带单位的答案。即使最终答案错误，正确的过程仍可获得方法分。
For descriptive questions, use precise physics vocabulary and link cause to effect. When asked to compare, explicitly state both similarities and differences. When asked to explain, avoid repeating the question and instead give the underlying mechanism.
描述性题目要使用精确的物理术语，并把原因与结果联系起来。要求比较时，明确写出相同点与不同点。要求解释时，不要重复题干，而要给出背后的机制。
11. Active Recall, Spaced Repetition and the Error Log | 主动回忆、间隔重复与错题本
Rereading notes feels productive but is weak revision. Active recall means closing the book and writing everything you remember about a topic, then checking what you missed. This exposes gaps far faster than highlighting.
反复阅读笔记感觉很有成效，但复习效果很弱。主动回忆是指合上书，写下你记得的关于某专题的全部内容，然后对照检查遗漏。这比划重点更快暴露知识漏洞。
Space your topics: revisit mechanics after one day, after three days and after a week. Short, repeated retrieval builds durable memory, which is exactly what you need under exam pressure.
给专题安排间隔：一天后、三天后、一周后分别重访力学。短时、重复的提取能建立持久记忆，这正是考试压力下你所需要的。
Keep an error log with three columns: the question, the mistake made, and the correct physics. Review the log every weekend before attempting a new paper, and cross out entries only when you can solve them confidently.
维护一个三栏错题本：题目、所犯错误、正确的物理原理。每周末在开始新真题前复习错题本，只有当你确信能独立解决时才划掉该条。
12. Sample Winter Week and Final Checklist | 寒假样板周与最后一周清单
The table below shows how a balanced winter week might look. Adjust the topics to match your own weak areas, and keep the structure of weekday topic work plus weekend full papers.
下表展示了均衡寒假一周的可能安排。请根据自身薄弱点调整专题，但保留平日专题训练加周末整套真题的结构。
| Day | Focus | 中文重点 |
| Mon | Mechanics: graphs and F = m × a | 力学：图像与 F = m × a |
| Tue | Thermal physics and gas law | 热学与气体定律 |
| Wed | Waves, optics and ray diagrams | 波、光学与光路图 |
| Thu | Circuits and I-V characteristics | 电路与 I–V 特性 |
| Fri | Induction and transformers (buffer) | 电磁感应与变压器（缓冲） |
| Sat | Full past paper, timed, no notes | 限时整套真题，不看笔记 |
| Sun | Mark, correct and update error log | 批改、订正并更新错题本 |
In the final week, stop learning new content. Instead, review your formula sheet, redo the questions you got wrong, and practise explaining tricky concepts aloud. Sleep properly, prepare your equipment, and walk into the exam hall with a clear plan for every question type.
最后一周不要再学新内容。改为复习公式表、重做错题，并练习大声讲解难点概念。保证睡眠、准备好考试用具，带着对每种题型的清晰策略走进考场。
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