📚 Year 7 WJEC Physics: Winter Break Intensive Revision Plan | Year 7 WJEC 物理：寒假强化复习计划
The winter break offers a golden opportunity for Year 7 students to consolidate their understanding of Physics. This structured, topic-based plan will guide you through the WJEC key stage 3 syllabus, helping you build confidence, fill knowledge gaps, and develop effective revision habits. Each section pairs essential content review with active learning strategies, making sure you return to school ready to excel.
寒假为 Year 7 学生提供了一个巩固物理知识的黄金机会。这份按主题划分的结构化复习计划将带你梳理 WJEC 关键阶段 3 的课程内容，帮助你建立信心、填补知识漏洞，并培养高效的复习习惯。每个小节都将内容复习与主动学习策略相结合，确保你返校时已经做好充分准备，能够轻松迎接新挑战。
1. Goal Setting and Self-Assessment | 设定目标与自我评估
Begin by assessing your current understanding of each physics topic. List all the units you have covered so far, such as forces, energy, electricity, waves, matter and space. Rate your confidence in each area, and be honest about what feels difficult.
首先，评估一下你目前对每个物理主题的掌握程度。列出你已经学过的所有单元，比如力、能量、电、波、物质和太空。诚实地给自己在每个领域的掌握程度打分，清楚认识到哪些部分让你感到棘手。
Use a simple traffic-light system: red means 'I need lots of help', yellow means 'I understand some of it', and green means 'I can explain this to someone else'. Write down two or three specific goals for the break, such as 'I will be able to calculate speed confidently' or 'I can draw and label a simple circuit diagram'. Stick these goals on your wall to remind you every day.
可以使用一个简单的红绿灯系统：红色代表“我需要很多帮助”，黄色代表“我理解一部分”，绿色代表“我可以向别人解释清楚”。写下两到三个具体的假期目标，比如“我能自信地计算速度”或“我能画出并标注简单的电路图”。把这些目标贴在墙上，每天督促自己。
2. Creating a Daily Revision Timetable | 制定每日复习时间表
A consistent routine prevents last-minute cramming. Dedicate 30–45 minutes to Physics each day, alternating between reading notes, watching short educational videos, and answering practice questions. The timetable below is a sample you can adapt to your family schedule.
坚持规律的作息有助于避免临时抱佛脚。每天安排 30 到 45 分钟复习物理，交替进行笔记阅读、观看教学短视频和回答练习题。下面的时间表是一个示例，你可以根据自己的家庭日程进行调整。
| Time | Activity |
|---|---|
| 10:00 – 10:10 | Warm-up: recap previous day's key terms |
| 10:10 – 10:30 | Core revision: one topic (e.g. energy stores) |
| 10:30 – 10:40 | Active recall: write down everything you remember without looking |
| 10:40 – 10:45 | Quick quiz or Flashcards |
中文翻译：10:00–10:10 热身，回顾前一天的关键术语；10:10–10:30 核心复习一个主题（如能量储存）；10:30–10:40 主动回忆，不看笔记写下记住的内容；10:40–10:45 快速小测或闪卡复习。
Remember to include short breaks between study sessions. On some days, you might replace the quiz with a hands-on mini-experiment at home, like testing static electricity with a balloon. The key is to stay flexible but consistent.
请记住，学习时段之间要安排短暂休息。在有些日子里，你可以把测试换成在家做一个小实验，比如用气球测试静电。关键在于保持灵活，但要坚持每天学习。
3. Forces and Motion | 力与运动
Forces are pushes or pulls that can change an object's speed, shape or direction. For WJEC Year 7, focus on recognising common forces: gravity, friction, magnetic force, upthrust and air resistance. Distinguish between balanced forces (no change in motion) and unbalanced forces (acceleration or deceleration).
力是能改变物体速度、形状或方向的推或拉。针对 WJEC Year 7，重点要识别常见的力：重力、摩擦力、磁力、浮力和空气阻力。要能区分平衡力（运动状态不变）和非平衡力（加速或减速）。
A key skill is drawing force diagrams using arrows to show both the direction and the magnitude of forces. Always label the arrow with the name of the force, and remember that the length of the arrow represents the size. If the forces are balanced, the arrows should be equal in length and opposite in direction.
一项重要的技能是用箭头画力的示意图，表示力的方向和大小。一定要在箭头上标出力的名称，记住箭头的长度代表力的大小。如果力是平衡的，箭头应该长度相等、方向相反。
Speed calculations are another essential part. You will need to use the formula to find speed, distance or time. Practise rearranging the equation and always include the correct units: metres per second (m/s) for speed, metres (m) for distance and seconds (s) for time.
速度计算是另一个重要部分。你需要使用公式来求速度、距离或时间。练习公式变形，并始终使用正确的单位：速度的单位是米/秒 (m/s)，距离是米 (m)，时间是秒 (s)。
speed = distance ÷ time
- 英文：Work through example problems: "A car travels 100 m in 5 s. What is its average speed?" (Answer: 20 m/s). Then try "A cyclist rides at a steady speed of 8 m/s. How far will she travel in 30 s?" (240 m).
- 中文：完成例题：“一辆汽车用了 5 s 行驶了 100 m。它的平均速度是多少？”（答案：20 m/s）。再试试“一名自行车手以稳定的 8 m/s 速度骑行，30 s 内她将行驶多远？”（240 m）。
4. Energy Stores and Transfers | 能量储存与转移
Energy is the ability to do work. In Year 7, you learn that energy is stored in different ways and can be transferred from one store to another. The main energy stores include kinetic (movement), thermal (heat), chemical (in food and batteries), gravitational potential (due to height), elastic potential (stretched or compressed objects) and nuclear.
能量是做功的能力。在 Year 7，你将学习能量以不同方式储存，并可以从一个储存转移到另一个。主要的能量储存包括动能（运动）、热能（热）、化学能（食物和电池中）、重力势能（由高度引起）、弹性势能（拉伸或压缩的物体）和核能。
Energy can be transferred by heating, by doing work (a force moving an object), electrically or by radiation (light and sound). When describing an energy transfer, always name the starting store and the final store. For example: 'A battery-powered torch transfers energy from the chemical store of the battery to the thermal and light stores of the surroundings.'
能量可以通过加热、做功（力使物体移动）、电学方式或通过辐射（光和声）来转移。在描述能量转移时，一定要指出起始的能量储存和最终的储存。例如：“一个电池供电的手电筒将电池的化学能储存转移为周围环境的热储存和光储存。”
Create energy transfer diagrams for everyday situations. Draw a flow diagram using arrows labelled with the transfer method. A common exam question asks you to identify wasted energy, which is often thermal energy that dissipates into the surroundings without being useful. Understanding energy efficiency starts here.
为日常情境绘制能量转移图。画一个流程图，用箭头标明转移方式。常见的考题会要求你识别浪费的能量，这通常是指散失到周围环境中、未被有效利用的热能。理解能量效率概念就从这里开始。
5. Electricity: Simple Circuits | 电学：简单电路
To revise electricity, begin by refreshing your memory on circuit symbols for common components: cell, battery, bulb, switch (open and closed), buzzer, motor, ammeter and voltmeter. WJEC expects you to draw and interpret circuit diagrams accurately.
复习电学时，先重温常见元件的电路符号：单个电池、电池组、灯泡、开关（断开和闭合）、蜂鸣器、电动机、电流表和电压表。WJEC 要求你能准确地画电路图并读懂它们。
Next, understand the concepts of current and voltage. Current is the flow of electric charge and is measured in amperes (A) using an ammeter connected in series. Voltage (potential difference) measures the 'push' that drives the current and is measured in volts (V) using a voltmeter connected in parallel. Remember: current is the same everywhere in a simple series circuit, while voltage is shared between components.
接下来，理解电流和电压的概念。电流是电荷的流动，用电流表串联测量，单位是安培 (A)。电压（电势差）衡量的是驱动电流的“推力”，用电压表并联测量，单位是伏特 (V)。记住：在简单串联电路中，各处电流相等，而电压在各元件间分配。
Conductors (like metals) allow current to flow easily because they have free electrons, whereas insulators (like plastic and rubber) resist current flow and are used for safety. When revising, always highlight the dangers of electricity, such as frayed wires, water near appliances and overloaded sockets.
导体（如金属）因为有自由电子而允许电流轻易通过，而绝缘体（如塑料和橡胶）阻止电流通过，常用于安全保护。复习时要特别注意用电危险，比如磨损的电线、靠近水源的电器和超负荷的插座。
6. Waves: Sound and Light | 波：声与光
Sound is produced by vibrations and travels as a longitudinal wave. Loudness is related to the amplitude of the vibration (bigger amplitude means louder sound), and pitch is related to frequency (higher frequency means higher pitch). Sound needs a medium (solid, liquid or gas) to travel; it cannot travel through a vacuum.
声音由振动产生，并以纵波的形式传播。响度与振幅有关（振幅越大声音越响），音调与频率有关（频率越高音调越高）。声音需要介质（固体、液体或气体）来传播，不能在真空中传播。
Light travels in straight lines and much faster than sound. You need to understand reflection: the angle of incidence equals the angle of reflection, and both angles are measured from the normal (an imaginary line perpendicular to the mirror surface). Use ray diagrams to show how images are formed in plane mirrors.
光沿直线传播，速度比声音快得多。你需要理解光的反射：入射角等于反射角，两个角都是从法线（垂直于镜面的假想线）开始测量的。利用光线图来表示平面镜中像的形成。
Refraction is the bending of light when it passes from one transparent medium to another (for example, air to glass). Dispersion shows that white light is made of a spectrum of colours (red, orange, yellow, green, blue, indigo, violet). A prism can split white light into these colours because each colour bends by a different amount.
折射是指光从一种透明介质进入另一种介质时（例如从空气进入玻璃）发生弯曲的现象。色散表明白光由一系列颜色（红、橙、黄、绿、蓝、靛、紫）组成。棱镜可以将白光分解出这些颜色，因为每种颜色的光弯曲程度不同。
7. Matter and the Particle Model | 物质与粒子模型
All matter is made of tiny particles that are constantly moving. The particle model explains the properties of solids, liquids and gases. In solids, particles are closely packed in a fixed arrangement and only vibrate; in liquids, particles are close but can slide past each other; in gases, particles are far apart and move rapidly in all directions.
所有物质都由不断运动的微小粒子构成。粒子模型解释了固体、液体和气体的性质。在固体中，粒子紧密排列在固定位置上，只能振动；在液体中，粒子紧密但可以相互滑动；在气体中，粒子相距很远，朝各个方向快速运动。
Changes of state are physical changes, not chemical. Melting, freezing, boiling, condensation and sublimation all involve energy transfers without the particles themselves changing. Always remember that mass is conserved during changes of state; the number of particles stays the same.
状态变化是物理变化，不是化学变化。熔化、凝固、沸腾、冷凝和升华等都涉及能量转移，但粒子本身不发生变化。一定要记住，在状态变化过程中质量是守恒的，粒子数量保持不变。
Diffusion is a key piece of evidence for the particle model: smelling perfume from across a room shows that particles in gases move randomly and spread out. WJEC questions might ask you to explain why a sugar cube dissolves faster in hot water than in cold water – this is because the particles in hot water have more kinetic energy and move faster.
扩散是支持粒子模型的关键证据：在房间的另一头闻到香水味表明气体粒子在做无规则运动并扩散开来。WJEC 的考题可能会让你解释为什么方糖在热水中比在冷水中溶解得更快——这是因为热水中的粒子有更多的动能，运动得更快。
8. Our Solar System and Space | 太阳系与太空
Our Solar System consists of the Sun, eight planets, their moons, and smaller objects like asteroids and comets. Memorise the order of the planets from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune. Jupiter is the largest planet, and Saturn has the most visible rings.
我们的太阳系由太阳、八颗行星、它们的卫星以及小行星和彗星等更小的天体组成。记住行星离太阳由近及远的顺序：水星、金星、地球、火星、木星、土星、天王星、海王星。木星是最大的行星，土星有着最明显的环。
Earth's rotation on its axis causes day and night, while its orbit around the Sun, combined with the tilt of its axis, gives us seasons. The Moon orbits Earth roughly every 28 days, and its changing appearance (phases) is due to the relative positions of the Moon, Earth and Sun. A solar eclipse occurs when the Moon passes between Earth and the Sun, while a lunar eclipse occurs when Earth is between the Sun and the Moon.
地球绕地轴自转产生了昼夜交替，而它围绕太阳的公转，加上地轴的倾斜，带给我们四季。月球大约每 28 天绕地球一圈，它外观（月相）的变化是由月球、地球和太阳的相对位置决定的。日食发生在月球位于地球和太阳之间的时候，而月食则发生在地球位于太阳和月球之间的时候。
Gravity is the force that keeps planets in orbit. The greater the mass of an object, the stronger its gravitational pull. Your weight is the force due to gravity acting on your mass and would be different on other planets, but your mass stays the same.
引力是使行星保持在轨道上运行的力。物体的质量越大，其引力也越强。你的体重是重力作用在你质量上的力，它在不同行星上可能不同，但你的质量始终保持不变。
9. Practical Skills and Experiments | 实验技能与实验操作
Physics is an experimental science, and WJEC places a strong emphasis on practical skills. You should be able to name common laboratory apparatus: stopwatch, metre ruler, spring balance (newton meter), thermometer, ammeter and voltmeter. Always recall how to use them safely and accurately.
物理是一门实验科学，WJEC 非常重视实验技能。你应该能够说出常见的实验仪器名称：秒表、米尺、弹簧秤（牛顿计）、温度计、电流表和电压表。要始终记得如何安全、准确地使用它们。
A fair test is one where only the independent variable is changed, all other variables are controlled, and the dependent variable is measured. For example, when investigating how the length of a pendulum affects its period, you would change only the string length, keep the mass and release angle the same, and measure the time for one swing. Recording results in a clear table with headers and units is vital.
公平测试是指只改变自变量，控制所有其他变量不变，并测量因变量。例如，在研究单摆长度如何影响其周期时，你只改变绳长，保持质量和释放角度不变，然后测量一个来回摆动的时间。将结果记录在标题清晰、带单位的表格中至关重要。
When plotting a graph, the independent variable goes on the horizontal (x) axis and the dependent variable on the vertical (y) axis. Draw a line of best fit – it does not have to pass through every point, but should show the trend. Finally, write a conclusion that says what the graph shows and relates it back to the scientific idea.
绘制图表时，自变量放在横 (x) 轴，因变量放在纵 (y) 轴。画一条最佳拟合线——它不必经过每一个点，但应该反映出趋势。最后，写出结论，说明图表显示了什么，并将其与科学原理联系起来。
10. Testing Yourself and Staying Motivated | 自我测试与保持动力
The most effective revision happens when you actively test yourself. Use flashcards for key definitions, cover up parts of diagrams and see if you can fill them in, and complete WJEC-style practice questions from your textbook or online resources. After each mini-test, mark your work and write down corrections in a different colour – this is called 'closing the gap'.
最有效的复习来自于主动进行自我测试。用闪卡背记关键定义，遮住图表的一部分尝试自己补全，并完成课本或在线资源中 WJEC 风格的练习题。每次小测后，自己批改并用不同颜色写下改正内容——这叫做“弥补差距”。
Whenever you get an answer wrong, do not just move on. Read the explanation carefully, then cover it up and try to explain the correct answer out loud as if you were teaching someone else. This technique, known as the 'Feynman method', is proven to strengthen understanding and memory.
每当答错题目时，不要轻易放过。仔细阅读解释，然后遮起来，尝试像在教别人一样大声解释正确答案。这种被称为“费曼学习法”的技巧已被证明能有效加深理解和记忆。
Finally, keep your motivation high by varying your activities. Watch a fun physics video about space, build a simple circuit with a kit, or challenge a family member to a science quiz. Reward yourself for meeting your daily targets. By the end of the winter break, you will have built a strong foundation that will last beyond Year 7.
最后，通过变换学习方式来保持高昂的动力。看一段关于太空的有趣物理视频，用实验套件搭建一个简单电路，或者与家人来一场科学问答赛。达到每日目标后，奖励一下自己。到寒假结束时，你将建立起一个坚实的物理基础，其益处远不止于 Year 7。
Published by TutorHao | Physics Revision Series | aleveler.com
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