📚 Year 10 Cambridge Physics: Summer Preparation & Bridging Course | Year 10剑桥物理：暑期预习与衔接课程
Summer is the perfect window to bridge the gap between general lower-secondary science and the focused, rigorous world of Cambridge IGCSE Physics. This guide will help you build a strong foundation, master essential skills, and enter Year 10 with confidence and curiosity.
暑假是从普通初中科学过渡到专注且严谨的剑桥 IGCSE 物理的理想窗口。这篇文章将帮助你建立扎实的基础，掌握核心技能，带着信心与好奇心步入 Year 10。
1. Understanding the IGCSE Physics Journey | 认识 IGCSE 物理的学习旅程
Cambridge IGCSE Physics (0625) is not just about memorising facts; it is about developing a way of thinking. You will learn to explain how the physical world works, from the motion of planets to the flow of electrons in a circuit. The syllabus is split into several major topics: General Physics, Thermal Physics, Waves, Electricity and Magnetism, Nuclear Physics, and Space Physics.
剑桥 IGCSE 物理 (0625) 不仅仅是记忆知识点，更是培养一种思维方式。你将学习解释物理世界如何运作，从行星的运动到电路中电子的流动。课程大纲分为几个主要板块：普通物理、热物理、波、电磁学、核物理以及空间物理。
Your summer bridging course should begin with a high-level overview of these topics. Do not try to learn everything in detail yet. Instead, skim through the syllabus or a revision guide and note which areas immediately spark your interest. This initial curiosity will fuel your study over the coming months.
你的暑期衔接课程应当从对这些主题的整体概览开始。不必马上深入细节，而是快速浏览教学大纲或复习指南，记下那些立刻引起你兴趣的领域。这份最初的求知欲会在接下来的几个月里一直为你提供学习的动力。
The assessment consists of three papers: a multiple-choice paper, a structured questions paper (theory), and a practical alternative or practical test. Understanding how you will be examined from the very start helps you study strategically. For instance, practical skills are not a separate afterthought but are woven into the theory.
考核由三份试卷组成：选择题卷、结构化问答题卷（理论）以及实验替代卷或实验操作测试。从一开始就了解考评方式能帮助你更有策略地学习。例如，实验技能并非孤立的补充内容，而是与理论知识紧密交织在一起的。
2. Essential Mathematical Toolkit for Physicists | 物理学习必备的数学工具箱
Physics without mathematics is like a language without grammar. This summer, make sure you are comfortable with rearranging equations, using standard form, converting units, and plotting graphs. GCSE-level algebra and trigonometry (SOH CAH TOA) are used constantly.
没有数学的物理就像没有语法的语言。这个暑假，务必要能熟练地变换方程、使用科学记数法、换算单位以及绘制图表。GCSE 阶段的代数与基础三角学（SOH CAH TOA）会经常用到。
Practice isolating a variable: if you know F = m × a, can you write a = F / m and m = F / a? Similarly, with density ρ = m / V, rearrange to find m = ρ × V and V = m / ρ. A solid week spent on these fundamentals will repay you many times over.
练习分离变量：已知 F = m × a，你能写出 a = F / m 以及 m = F / a 吗？同样地，对于密度 ρ = m / V，试着变换为 m = ρ × V 和 V = m / ρ。花一周时间打好这些基础，未来会给你带来数倍的回报。
Get familiar with prefixes: kilo (10³), mega (10⁶), centi (10⁻²), milli (10⁻³), micro (10⁻⁶). Convert seamlessly between units like 25 cm to 0.25 m, or 50 mA to 0.05 A. Use a dedicated exercise book to practise conversions daily until they become second nature.
要熟悉各种单位前缀：千 (10³)、兆 (10⁶)、厘 (10⁻²)、毫 (10⁻³)、微 (10⁻⁶)。要能在 25 cm 与 0.25 m，或 50 mA 与 0.05 A 之间自如地进行换算。准备一本专用练习本，每天练习单位换算，直到它们成为你的第二天性。
Graph skills matter enormously. You should be able to plot points accurately, draw a line of best fit, find the gradient (rise over run), and calculate the area under a line when required. These skills appear in motion, resistance, and Hooke’s law investigations.
作图技巧极其重要。你要能精确描点、画出最佳拟合线、计算斜率（纵向变化/横向变化），并在需要时求出图形下的面积。这些技巧会出现在运动学、电阻研究以及胡克定律实验中。
3. Physical Quantities, Units and Measurement | 物理量、单位与测量
Every physical quantity has a name, a symbol, an SI unit, and often a measuring instrument. The six base quantities you must know are length (metre, m), mass (kilogram, kg), time (second, s), electric current (ampere, A), temperature (kelvin, K), and amount of substance (mole, mol). All other quantities are derived from these.
每个物理量都有名称、符号、国际单位，并常对应一种测量工具。你必须了解的六个基本量是：长度（米，m）、质量（千克，kg）、时间（秒，s）、电流（安培，A）、温度（开尔文，K）以及物质的量（摩尔，mol）。其他所有物理量都由这些基本量推导得出。
Spend time memorising key derived units. For example, force is measured in newtons (N), which is equivalent to kg m/s². Energy and work use joules (J), equivalent to N m. Pressure is in pascals (Pa) or N/m². Learning these relationships now prevents confusion with formulae later.
花些时间记忆关键的导出单位。例如，力的单位是牛顿 (N)，相当于 kg m/s²；能量和功的单位是焦耳 (J)，等于 N m；压强单位是帕斯卡 (Pa) 或 N/m²。现在就理清这些关系，可以避免日后在学习公式时出现混淆。
Measurement and uncertainty are also part of the picture. You will encounter analogue and digital instruments, and you need to know how to read scales, account for parallax error, and express readings with appropriate precision. Always include the unit in your answer.
测量与误差同样不容忽视。你会接触到模拟与数字仪表，需要学会正确读尺、避免视差错误，并以恰当的精度记录读数。答题时务必永远带上单位。
4. Describing Motion: Speed, Velocity and Acceleration | 描述运动：速率、速度与加速度
Motion is the starting point of mechanics. A clear distinction between scalar and vector quantities is essential: speed is scalar (magnitude only), while velocity is vector (magnitude and direction). Distance is scalar; displacement is vector. Grasping this early will save countless mistakes.
运动是力学的起点。清晰地分辨标量与矢量至关重要：速率是标量（仅有大小），而速度是矢量（既有大小，又有方向）。距离是标量，位移是矢量。尽早掌握这一点，可以避免无数错误。
The key equation for constant speed is
v = s / t
where v is speed, s is distance travelled, and t is time. Practise simple problems like calculating how long it takes to travel 150 m at a steady 3 m/s.匀速运动的核心公式是
v = s / t
其中 v 为速率，s 为路程，t 为时间。尝试求解一些简单的问题，比如以恒定的 3 m/s 运动 150 m 需要多长时间。Acceleration is the rate of change of velocity:
a = (v − u) / t
where u is initial velocity, v is final velocity, and t is the time taken. A negative acceleration (deceleration) simply means the object is slowing down. Use this formula to interpret velocity–time graphs.加速度是速度的变化率：
a = (v − u) / t
其中 u 为初速度，v 为末速度，t 为所用时间。负加速度（减速）仅仅意味着物体正在变慢。利用该公式去解读速度–时间图像。In a velocity–time graph, the gradient gives the acceleration, and the area under the graph gives the distance travelled. Nothing cements these concepts better than drawing your own graphs for a marble rolling down a ramp and calculating both the gradient and the area.
在速度–时间图像中，斜率表示加速度，图像下的面积表示经过的距离。没什么比自己亲手绘制小球滚下斜坡的图表、并分别计算斜率与面积更能巩固这些概念的了。
5. Forces and Newton's Laws | 力与牛顿运动定律
Forces are pushes or pulls that can change an object's shape, speed, or direction. The unit is the newton. Forces are vectors, so they must be added tip-to-tail when they act along different lines. Resultant force is the single force that has the same effect as all the individual forces combined.
力是能够改变物体形状、速率或方向的推拉作用，单位是牛顿。力是矢量，因此当它们沿不同直线作用时，必须用首尾相接的方法相加减。合力是一个能产生与所有分力共同作用效果相同的单个力。
Newton's First Law states that an object remains at rest or in uniform motion unless acted upon by a resultant force. This is the principle of inertia. Newton's Second Law is summed up as
F = m × a
where F is the resultant force, m is mass, and a is acceleration. A larger force gives a larger acceleration; a larger mass means a smaller acceleration for the same force.牛顿第一定律指出，除非受到合外力作用，否则物体将保持静止或匀速直线运动状态。这就是惯性原理。牛顿第二定律可概括为
F = m × a
其中 F 为合力，m 为质量，a 为加速度。更大的力产生更大的加速度；而在相同力作用下，质量越大，加速度越小。Weight is a force of gravity:
W = m × g
where g is the gravitational field strength (9.8 N/kg on Earth, often rounded to 10 N/kg). Do not confuse mass (kg) with weight (N). This is one of the most common errors at IGCSE level.重力是一种由引力产生的力：
W = m × g
其中 g 为重力场强度（地球表面约为 9.8 N/kg，通常简化为 10 N/kg）。切勿混淆质量 (kg) 与重力 (N)，这是 IGCSE 阶段最常见的错误之一。Newton's Third Law says that when object A exerts a force on object B, object B exerts an equal and opposite force on object A. These forces act on different bodies. Apply this to rockets, walking, and collisions to see its power in explaining motion.
牛顿第三定律指出，当物体 A 对物体 B 施加一个力时，物体 B 会同时对物体 A 施加一个大小相等、方向相反的力。这两个力作用在不同的物体上。把该定律用于火箭、行走与碰撞，你会看到它在解释运动时的强大之处。
6. Energy, Work and Power | 能量、功与功率
Energy is the ability to do work, and it can be stored in different forms: kinetic, gravitational potential, chemical, elastic, thermal. The principle of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed. All IGCSE energy problems rest on this principle.
能量是做功的能力，它可以储存在不同形式中：动能、重力势能、化学能、弹性势能、热能。能量守恒定律指出，能量既不能凭空产生，也不能凭空消失，只能转移或转化。所有 IGCSE 能量问题都以这条定律为基础。
Work is done when a force moves an object in the direction of the force:
W = F × d
Energy transferred equals work done. Power is the rate of doing work:P = W / t
Power is measured in watts (W), where 1 W = 1 J/s.当力使物体沿力的方向移动时，我们就说力做了功：
W = F × d
转移的能量等于做的功。功率则是做功的速率：P = W / t
功率的单位是瓦特 (W)，1 W = 1 J/s。Two vital energy formulae are for kinetic energy and gravitational potential energy.
Eₖ = ½ m v²
Eₚ = m g h
where h is the height above a reference level. Practise problems where a falling object converts gravitational potential energy to kinetic energy, ignoring air resistance.两个至关重要的能量公式是关于动能和重力势能的：
Eₖ = ½ m v²
Eₚ = m g h
其中 h 是相对于参考水平面的高度。尝试解决物体下落时忽略空气阻力，从重力势能转化为动能的问题。Efficiency is a comparison of useful output energy to total input energy:
Efficiency = (Useful energy output / Total energy input) × 100%
Whenever energy is transferred, some is dissipated as thermal energy. Understanding energy flow diagrams (Sankey diagrams) helps visualise these losses and teaches the importance of reducing waste.效率是将有用输出能量与总输入能量进行比较：
效率 = (有用能量输出 / 总能量输入) × 100%
每当能量转移时，总有一部分以热能的形式耗散。理解能流图（桑基图）有助于直观看到这些损耗，并教会我们减少浪费的重要性。
7. Thermal Physics: Temperature, Heat and States | 热物理：温度、热量与物态
Thermal physics explores how energy moves within and between substances. Temperature (measured with a thermometer) reflects the average kinetic energy of particles, while heat is the transfer of thermal energy. The kelvin scale is used in many gas law calculations; 0 K is absolute zero.
热物理探讨能量如何在物质内部及物质之间运动。温度（用温度计测量）反映了粒子的平均动能，而热量则是热能的转移。许多气体定律计算中使用开尔文温标；0 K 为绝对零度。
All matter is made of particles in constant motion. Solids have fixed shape and volume because particles vibrate in fixed positions. Liquids have fixed volume but take the shape of their container; particles can slide past each other. Gases have no fixed shape or volume; particles move rapidly and are far apart.
所有物质都由不断运动的粒子组成。固体有固定的形状和体积，因为粒子只能在固定位置振动。液体有固定体积，但形状随容器改变；粒子可以彼此滑动。气体既没有固定形状，也没有固定体积；粒子运动快速且间距很大。
When a substance changes state, its temperature stays constant during the change even though energy is being supplied. This is because the energy goes into breaking inter-particle bonds, not into raising kinetic energy. The specific latent heat of fusion and vaporisation quantify these energies using the formula
Q = m L
where L is the specific latent heat.当物质发生物态变化时，即使能量不断供给，温度也会保持不变。这是因为能量被用于打破粒子间的键，而不是增加动能。熔化比潜热与汽化比潜热使用公式
Q = m L
来量化这些能量，其中 L 为比潜热。Learn to interpret heating and cooling curves. A classic graph shows temperature rising, then plateauing during melting, rising again, then plateauing during boiling. These plateaus are characteristic of pure substances and are a favourite in exam questions.
要学会解读加热和冷却曲线。经典的图像显示温度先上升，然后在熔化时出现平台，再上升，接着在沸腾时再次出现平台。这些平台是纯净物的特征，也是考试中常见的内容。
8. Waves: Properties and Behaviour | 波：性质与行为
Waves transfer energy without transferring matter. There are two main types: transverse waves (oscillation perpendicular to direction of energy transfer, e.g. light, water ripples) and longitudinal waves (oscillation parallel to energy transfer, e.g. sound). Knowing the difference helps explain reflection, refraction, and the need for a medium.
波可以传递能量而不传递物质。主要有两种类型：横波（振动方向垂直于能量传递方向，如光、水波涟漪）和纵波（振动方向平行于能量传递方向，如声波）。了解二者的区别有助于解释反射、折射以及对媒介的需求。
Key wave quantities include wavelength (λ), frequency (f), amplitude, and wave speed (v). The fundamental equation is
v = f × λ
Practise using this in contexts like calculating the speed of a wave from a ripple tank experiment, or finding the wavelength of a radio wave given its frequency.波的关键量包括波长 (λ)、频率 (f)、振幅与波速 (v)。基础方程是
v = f × λ
可以通过涟漪槽实验计算波速，或根据频率求无线电波的波长来练习使用此公式。Reflection, refraction and diffraction are crucial behaviours. The law of reflection states that the angle of incidence equals the angle of reflection. Refraction occurs when a wave changes speed at a boundary, causing a change in direction (unless incident normally). Diffraction is the spreading of waves around obstacles or through gaps, most noticeable when the gap size is similar to the wavelength.
反射、折射与衍射是关键的行为。反射定律指出，入射角等于反射角。当波在界面处速度发生改变时，就会发生折射，进而导致方向改变（垂直入射时除外）。衍射是波遇到障碍物或穿过缝隙时向外扩展的现象，缝隙大小与波长相近时衍射最为明显。
9. Electricity Fundamentals: Circuits and Components | 电学基础：电路与元件
Electricity is the flow of charge. Current (I) is the rate of flow of charge, measured in amperes (A). One ampere is one coulomb per second. Voltage (potential difference, V) is the energy transferred per unit charge, measured in volts (V). A simple circuit always needs a source of energy, a complete conducting path, and a load.
电是电荷的流动。电流 (I) 是电荷流动的速率，以安培 (A) 为单位。1 安培等于每秒 1 库仑。电压（电势差，V）是每单位电荷转移的能量，以伏特 (V) 为单位。一个简单的电路总需要电源、完整的导电路径以及负载。
Ohm's law links voltage, current and resistance (R):
V = I × R
Resistance is measured in ohms (Ω). A resistor that obeys Ohm's law gives a straight-line graph through the origin. A filament lamp does not, because its resistance increases as it gets hotter.欧姆定律将电压、电流与电阻 (R) 联系起来：
V = I × R
电阻以欧姆 (Ω) 为单位。遵守欧姆定律的电阻器会给出过原点的直线图像。而灯丝灯泡则不然，其电阻会随温度升高而增大。Series and parallel circuits follow distinct rules. In series: current is the same everywhere, total resistance is the sum, Rₜ = R₁ + R₂ + .... In parallel: voltage is the same across each branch, total current is the sum of branch currents, and total resistance decreases as more branches are added. Draw and compare both circuits with two identical lamps to see the effect on brightness.
串联与并联电路遵循不同的规则。串联时：各处电流相同，总电阻为各电阻之和，Rₜ = R₁ + R₂ + ...。并联时：各支路两端电压相同，总电流为各支路电流之和，且并联的支路越多，总电阻越小。分别画出两个相同灯泡的串联与并联电路，对比它们对亮度的影响。
10. Atomic Structure and Radioactivity | 原子结构与放射性
Atoms consist of a tiny nucleus containing protons (positive) and neutrons (neutral), surrounded by electrons (negative) in energy shells. Most of the atom is empty space. The proton number (atomic number) defines the element; the nucleon number (mass number) is the total of protons plus neutrons.
原子由一个微小的原子核和核外分层排布的电子组成，原子核内含质子（带正电）与中子（不带电），电子带负电。原子大部分是空的。质子数（原子序数）决定了元素的种类；核子数（质量数）等于质子数与中子数之和。
Some nuclei are unstable and emit radiation to become more stable. There are three main types: alpha (α, helium nucleus, 2 protons + 2 neutrons), beta (β, a fast-moving electron emitted when a neutron turns into a proton), and gamma (γ, electromagnetic wave with no mass or charge). Learn their penetrating powers and ionising abilities.
有些原子核不稳定，会通过放出辐射来变得更稳定。主要有三种辐射：α 粒子（氦核，2 个质子加 2 个中子）、β 粒子（中子转变为质子时释放的高速电子）和 γ 射线（无质量、不带电的电磁波）。要熟悉它们的穿透能力和电离本领。
Radioactive decay is random and spontaneous. The half-life is the time taken for half the nuclei in a sample to decay. This concept appears in graph interpretation and simple calculations. For example, if a sample has a half-life of 5 years, after 10 years only one quarter of the original radioactive nuclei remain.
放射性衰变是随机且自发的。半衰期是指样本中一半的原子核发生衰变所需的时间。这一概念常以图像解读和简单计算的形式出现。例如，某样品的半衰期为 5 年，那么 10 年后只剩下原来四分之一的放射性原子核。
11. Practical Skills and Investigation Thinking | 实验技能与探究思维
IGCSE Physics places strong emphasis on practical work. You are expected to design investigations, identify variables (independent, dependent, controlled), take readings, plot results, and draw conclusions. Start practising with simple home experiments using a stopwatch, ruler, and kitchen scales.
IGCSE 物理十分注重实验操作。你需要能够设计探究实验、识别变量（自变量、因变量与控制变量）、记录读数、绘制结果图并得出结论。可以从使用秒表、直尺和厨房秤做一些简单的家庭小实验开始练手。
Learn to write a clear method, state risks and precautions, and suggest improvements to increase reliability (e.g. repeating readings, using a fiducial marker, or using digital instruments instead of analogue). These skills are assessed through the practical paper and through theory questions that ask 'How would you investigate...?'
要学会写清楚实验步骤，说明风险与预防措施，并提出增加可靠性的改进方法（例如，重复测量、使用基准标记，或使用数字仪表代替模拟仪表）。这些技能不仅在实验卷中考查，也会以“你将如何探究……”的理论题形式出现。
Common practicals to preview include: determining the density of regular and irregular solids, investigating Hooke's Law with a spring, measuring the speed of sound using echoes, tracing ray diagrams for reflection and refraction with lenses and mirrors, and exploring resistance with a length of wire.
值得提前了解的常见实验包括：测定规则与不规则固体的密度、通过弹簧探究胡克定律、利用回声测量声速、用透镜与平面镜绘制反射和折射的光路图，以及用一段导线探究电阻。
12. Creating Your Summer Study Plan | 制定你的暑期学习计划
A successful bridging course requires structure and consistency, not cramming. Aim for 20–30 minutes of focused study per day, five days a week. Divide the summer into three phases: foundational mathematics and units (weeks 1–2), core physics concepts (weeks 3–6), and light revision plus curiosity projects (weeks 7–8).
成功的衔接课程需要的是条理与坚持，而非临时突击。目标是每天专注学习 20–30 分钟，每周五天。将暑假分为三个阶段：基础数学与单位（第 1–2 周）、核心物理概念（第 3–6 周），以及轻松复习加兴趣项目（第 7–8 周）。
Use quality resources: the official Cambridge learner guide, a reputable revision book, and free online simulations (like PhET for circuits, forces, and waves). Keep a 'physics journal' where you note key definitions, formulae, and questions that puzzle you. Writing by hand reinforces memory.
要使用优质资源：剑桥官方学习者指南、口碑良好的复习用书，以及免费的在线模拟工具（如用于电路、力和波的 PhET 模拟）。准备一本“物理日记”，在其中记下关键定义、公式以及让你感到困惑的问题。手写能够巩固记忆。
Do not be afraid of making mistakes. The summer is a low-pressure time to struggle with new ideas. When you find a concept difficult, draw a diagram, explain it aloud to a family member, or watch a short explanatory video. This active engagement builds the neural pathways you will need in the classroom.
不要害怕犯错。暑假是一个低压力的时期，可以大胆地与新知“缠斗”。一旦遇到难以理解的概念，不妨画张图、大声给家人讲解一遍，或者看一个简短的讲解视频。这种主动的投入会建立起你在课堂上需要的神经通路。
Finally, stay curious. Ask 'why' whenever you see physics in action: why does a ball bounce lower each time? Why does a metal spoon feel colder than a wooden
Published by TutorHao | Year 10 Physics Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
或截图后用「扫一扫 → 相册」选择本图