📚 Year 7 WJEC Physics: Summer Preparation and Bridging Course | Year 7 WJEC 物理：暑期预习与衔接课程
Starting secondary school is a big step, and with it comes the excitement of meeting new subjects – including physics. The WJEC Year 7 physics course builds on the science you explored in primary school, introducing you to the fundamental ideas that explain how the universe works, from tiny particles to enormous galaxies. This summer preparation and bridging guide will walk you through the key topics you will encounter in Year 7, refresh essential concepts, and help you develop the scientific thinking skills you need to thrive. Whether you are excited about experiments or just want to feel more confident before the first day, this article will give you a head start.
进入中学是一个重要的转变，随之而来的是接触新学科的兴奋感——物理就是其中之一。WJEC 七年级物理课程建立在你在小学所学的科学知识之上，向你介绍解释宇宙如何运作的基本概念，从微小的粒子到浩瀚的星系。这份暑期预习与衔接指南将带你了解七年级将遇到的核心主题，重温关键概念，并帮助你培养所需的科学思维能力。无论你热衷于动手实验，还是只想在开学第一天更有信心，这篇文章都会让你领先一步。
1. Introduction to WJEC Year 7 Physics | 走进 WJEC 七年级物理
ramme at Key Stage 3. Physics is not taught as a completely separate subject at this stage – instead, it is integrated with chemistry and biology under the umbrella of 'Science' e emphasises practical enquiry, so you will spend plenty of time designing experiments, taking measurements, and explaining results. By the end of Year 7, you should be able to describe simple physical phenomena using correct scientific vocabulary and begin to use mathematical relationships such as speed = distance ÷ time.
在威尔士，WJEC 七年级课程属于关键阶段 3 科学课程的一部分。在这个阶段，物理并不作为完全独立的学科教授，而是与化学和生物一起整合在“科学”的框架下。然而，认识其中的物理内容将帮助你理解力、能量、电和波等主题是如何与现实生活相联系的。这门课程强调实践探究，因此你将花大量时间设计实验、进行测量并解释结果。到七年级结束时，你应该能运用正确的科学词汇描述简单的物理现象，并开始使用像“速度 = 距离 ÷ 时间”这样的数学关系。
2. What is Physics? | 什么是物理学？
Physics is the branch of science that studies matter, energy, and the fundamental forces of nature. It asks big questions: Why do things fall? What makes a rainbow? How does a mobile phone work? Unlike many other subjects, physics uses mathematics and experiments together to build models that predict what will happen in the world around us. In Year 7, you will start with the basics that underpin everything else – the way objects move, how energy is transferred, and the behaviour of materials. Understanding physics not only helps you make sense of everyday experiences but also paves the way for exciting careers in engineering, medicine, and technology.
物理学是研究物质、能量以及自然界基本力的科学分支。它提出宏大的问题：物体为什么会下落？彩虹是怎么形成的？手机如何工作？与许多其他学科不同，物理学协同运用数学与实验来建立模型，预测我们周围世界将要发生的现象。在七年级，你会从支撑一切的基础开始——物体的运动方式、能量如何转移以及材料的行为。理解物理不仅帮助你理解日常体验，还为工程、医学和科技等令人兴奋的职业铺平道路。
3. Energy and Its Forms | 能量及其形式
Energy is a core idea in Year 7 physics. You will learn that energy is the ability to do work and that it can exist in different forms: kinetic (movement), thermal (heat), light, sound, electrical, chemical, elastic potential, and gravitational potential. One key rule is the conservation of energy – energy cannot be created or destroyed, only transferred from one form to another. For example, when you kick a ball, the chemical energy stored in your muscles transforms into kinetic energy of the ball. In the classroom, you might measure temperature changes to see how friction produces thermal energy, or build simple circuits to trace electrical energy transferring into light and heat.
能量是七年级物理的核心概念。你将学到能量是做功的能力，并且它可以以不同形式存在：动能（运动）、热能（热）、光能、声能、电能、化学能、弹性势能和重力势能。一条关键规则是能量守恒——能量不能创造或消灭，只能从一种形式转移到另一种形式。例如，你踢球时，肌肉中储存的化学能转化为球的动能。在课堂上，你可能会测量温度变化以观察摩擦如何产生热能，或者搭建简单电路以追踪电能转化为光和热的过程。
4. Forces and Motion | 力与运动
Forces are pushes or pulls that can change an object' gnetic force). You will learn to measure forces in newtons (N) using a spring balance. Motion is often described using distance-time graphs, and you will practise calculating speed using the formula speed = distance ÷ time. Everyday examples – , throwing a ball, or the feeling of being pushed back in your seat when a car accelerates – all become clear once you understand the link between unbalanced forces and acceleration.
力是推或拉，可以改变物体的速度、方向或形状。在七年级，你将接触到接触力（如摩擦力和空气阻力）和非接触力（如重力和磁力）。你将学习使用弹簧秤以牛顿为单位测量力。运动通常用距离-时间图来描述，你将练习通过公式“速度 = 距离 ÷ 时间”来计算速度。日常的例子——骑自行车、扔球，或者汽车加速时你感觉被推回座椅——一旦你理解了不平衡力与加速度之间的联系，这些现象都会变得清晰起来。
5. Electricity Basics | 电学基础
Electricity is all around us, and Year 7 introduces simple circuits. You will learn the symbols for common components such as cells, bulbs, switches, and buzzers, and then build series circuits to investigate how they work. Two important quantities are current (measured in amperes, A) and voltage (measured in volts, V). You will see that current is the flow of electric charge, while voltage is the push that makes charges move. A common investigation is to see how adding more bulbs affects the brightness – in a series circuit, each bulb shares the voltage, so the brightness decreases. Safety is emphasised: you must never play with mains electricity and always check circuits before turning them on.
电无处不在，七年级会介绍简单电路。你将学习常见元件的符号，例如电池、灯泡、开关和蜂鸣器，然后搭建串联电路来探究它们的工作原理。两个重要物理量是电流（以安培计）和电压（以伏特计）。你将了解电流是电荷的流动，而电压是推动电荷移动的“推力”。一个常见的探究是观察增加更多灯泡如何影响亮度——在串联电路中，每个灯泡分担电压，因此亮度会减弱。安全被着重强调：绝对不能玩弄市电，通电前一定要检查电路。
6. Waves: Sound and Light | 波：声音与光
Waves transfer energy from one place to another without transferring matter. In Year 7, you will look at two types of waves: sound and light. Sound is a vibration that travels through a medium (like air or water) as a longitudinal wave. You will investigate how the pitch of a note depends on frequency, and how loudness is related to amplitude. Light travels as a transverse wave and can move through a vacuum. You will explore reflection using mirrors, refraction when light passes through different materials, and how white light can be split into the colours of the spectrum using a prism. These ideas help explain everyday wonders like echoes, rainbows, and why a straw looks bent in a glass of water.
波将能量从一处转移到另一处，而不转移物质。在七年级，你将探究两种波：声波和光波。声音是一种振动，以纵波的形式通过介质（如空气或水）传播。你将研究音调的高低如何取决于频率，以及音量大小如何与振幅有关。光以横波形式传播，并且可以在真空中前进。你将通过镜子探索反射，通过不同材料研究折射，并利用棱镜将白光分解成光谱中的多种颜色。这些概念有助于解释日常的奇妙现象，如回声、彩虹，以及为什么吸管放在水杯中看起来是弯的。
7. Matter: Solids, Liquids, and Gases | 物质：固体、液体和气体
Everything around you is made of matter, which commonly exists in three states: solid, liquid, and gas. Solids have a fixed shape and volume because their particles are closely packed in a regular arrangement and can only vibrate in place. Liquids have a fixed volume but take the shape of their container because particles can slide past each other. Gases have neither fixed shape nor volume – particles move rapidly in all directions and spread out to fill any space. You will learn the proper terms for changes of state: melting, freezing, boiling, evaporating, condensing, and sublimation. Diffusion experiments, like watching a crystal of potassium permanganate colour a beaker of water, show how particles move in liquids and gases.
你周围的一切都由物质构成，物质通常以三种状态存在：固体、液体和气体。固体有固定的形状和体积，因为它们的粒子紧密排列成规则结构，只能在原地振动。液体有固定体积，但呈现容器的形状，因为粒子可以相互滑动。气体既没有固定形状也没有固定体积——粒子快速地向各个方向运动并扩散至充满任何空间。你将学习物态变化的正确术语：熔化、凝固、沸腾、蒸发、凝结和升华。扩散实验，比如观察一枚高锰酸钾晶体如何使一烧杯水变色，展示了粒子在液体和气体中是如何运动的。
8. The Particle Model | 粒子模型
The particle model is a powerful way of explaining the behaviour of solids, liquids, and gases. It states that all substances are made of tiny particles that are constantly moving. The energy of the particles determines the state: the more energy they have, the faster they move and the further apart they become. This model helps you understand why heating a gas increases its pressure (particles hit the walls harder and more often) and why solids expand slightly when heated (particles vibrate more and need more space). It is important to remember that the model has limitations – for example, it cannot explain every property of a substance, and the particles are not really tiny billiard balls. Nevertheless, it provides a solid foundation for Year 7 learning.
粒子模型是解释固体、液体和气体行为的一种有效方法。该模型认为所有物质都由不断运动的微小粒子组成。粒子的能量决定物质的状态：能量越多，粒子运动越快，间距也越大。这个模型帮助你理解为什么加热气体会增加压强（粒子撞击容器壁更猛烈、更频繁），以及为什么固体受热时略微膨胀（粒子振动加剧，需要更多空间）。要记住该模型存在局限性——例如，它不能解释物质的所有性质，粒子也并不真的是微小的弹珠。尽管如此，它为七年级的学习提供了坚实的基础。
9. Scientific Skills and Safety | 科学方法与安全
Working scientifically is just as important as learning facts in physics. You will be expected to ask questions, form hypotheses, plan fair tests, record observations in tables, plot graphs, and draw conclusions based on evidence. Accuracy and reliability are key words – you will learn to use apparatus such as rulers, timers, Newton meters, and electrical meters correctly, and to identify possible sources of error. Safety always comes first in the laboratory. You must follow your teacher's instructions, wear safety goggles when required, tie back long hair, and never eat or drink in the lab. Knowing the hazard symbols for flammable, corrosive, and toxic substances is also part of the curriculum.
在物理学科中，科学探究与学习事实同等重要。你将被要求提出问题、形成假设、设计公平实验、将观察结果记录在表格中、绘制图表，并基于证据得出结论。准确性和可靠性是关键术语——你将学习正确使用直尺、秒表、牛顿计和电表等仪器，并识别可能的误差来源。实验室里安全永远是第一位的。你必须遵循老师的指导，按要求佩戴护目镜，把长头发束好，绝不在实验室饮食。认识易燃、腐蚀性和有毒物质的危险标志也是课程内容的一部分。
10. Practical Investigations | 实验探究
Year 7 is filled with hands-on investigations that bring physics to life. Typical experiments include measuring the speed of a trolley rolling down a ramp, investigating the factors that affect the period of a pendulum, or testing which materials are the best thermal insulators. You will learn to collect data carefully, repeat measurements to improve reliability, and identify patterns. For instance, you might plot a graph of current against voltage to see Ohm's law in action, even if you haven't learned the full law yet. These practicals teach you that physics is not just a set of formulas – it is a way of discovering how nature behaves through evidence.
七年级充满了动手探究活动，使物理变得鲜活。典型的实验包括测量小车沿斜坡滚下的速度，探究影响单摆周期的因素，或者测试哪些材料是更好的热绝缘体。你将学习仔细收集数据、重复测量以提高可靠性，并识别规律。例如，你可能会绘制电流随电压变化的图像以观察欧姆定律的实际表现，即使你还未完整学习该定律。这些实践活动教会你，物理不仅仅是一组公式——它是一种通过证据发现自然规律的方法。
11. Bridging from Primary to Secondary Science | 从小学科学到初中科学的衔接
In primary school, you learned about topics like light, sound, electricity, forces, and Earth in space through engaging activities and simple explanations. Year 7 builds on that foundation by introducing more precise language, basic mathematics, and formal experimental methods. For example, where you once described a shadow as 'bigger when the object is closer to the torch', you will now use ray diagrams to explain how shadows form. The jump can feel challenging, but remember that your curiosity and willingness to ask 'what if' are your greatest strengths. Your teacher will help you bridge any gaps by revisiting familiar ideas and gradually adding depth.
在小学，你通过有趣的活动和简单的解释学习了光、声音、电、力以及地球在太空中的位置等主题。七年级在此基础上引入了更精确的语言、基础数学和正式的实验方法。例如，过去你可能会描述“物体离手电筒越近，影子越大”，如今你将使用光线图来解释影子是如何形成的。这个跃升可能感觉有挑战，但请记住，你的好奇心以及问“如果……会怎样”的意愿是你最大的优势。老师会通过重温熟悉的概念并逐步加深，帮助你弥合任何差距。
12. How to Prepare Over the Summer | 暑期如何准备
You do not need a physics textbook to start preparing! Begin by observing the world around you: notice the forces when you ride your bike, the energy changes when you cook, the echoes in a tunnel. Ask questions and try to find answers online or in library books. Practise simple maths skills like calculating speed from distance and time, or reading a thermometer. You could also try some safe kitchen experiments – for instance, making a lemon battery to light a small LED, or exploring dissolving and diffusion with food colouring in water. The most important thing is to stay curious. A summer spent asking 'why?' will make your transition to Year 7 physics a natural and exciting step.
你不需要一本物理课本就能开始准备！从观察你周围的世界开始：注意你骑自行车时的力，做饭时的能量变化，隧道里的回声。提出问题，并尝试在网上或图书馆的书中寻找答案。练习简单的数学技能，比如用距离和时间计算速度，或读取温度计。你也可以尝试一些安全的厨房实验——例如，制作一个柠檬电池来点亮一个小型发光二极管，或者用食用色素探索溶解和扩散现象。最重要的是保持好奇心。一个充满“为什么”的暑假会让你的七年级物理过渡成为自然而令人兴奋的一步。
Published by TutorHao | Physics Revision Series | aleveler.com
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