📚 Year 8 Edexcel Engineering: Vocabulary & Terminology Quick-Memorisation Guide | 8年级爱德思工程：词汇术语速记指南
Mastering technical vocabulary is the first step to thinking like an engineer. This guide pairs every key term with a clear explanation and a simple memory hook, helping you recall definitions fast during class discussions, homework and end‑of‑topic tests. The vocabulary is organised into logical categories that follow the Edexcel Year 8 scheme of learning, covering materials, forces, mechanisms, electronics, manufacturing, design, measurement, energy and safety.
掌握技术词汇是像工程师一样思考的第一步。本指南将每一个关键术语与清晰的解释和简单的记忆挂钩配对，帮助你在课堂讨论、家庭作业和单元测试中快速回想定义。词汇按照爱德思8年级学习方案的逻辑类别进行编排，涵盖材料、力、机构、电子、制造、设计、测量、能源与安全。
1. Materials & Properties | 材料与性能
Tensile strength describes how well a material resists being pulled apart. Visualise a tug‑of‑war rope: if it has high tensile strength, it will not snap easily.
抗拉强度描述材料抵抗被拉断的能力。想象一场拔河比赛的绳子：如果它具有高抗拉强度，就不容易断裂。
Compressive strength is the ability to withstand pushing or squashing forces. Think of a concrete pillar supporting a bridge—it must have high compressive strength or it would crumble.
抗压强度是承受推力或挤压力的能力。想象一根支撑桥梁的混凝土柱子——它必须具有高抗压强度，否则会压碎。
Ductility means a material can be drawn into thin wires without breaking. Copper wiring inside a USB cable is a perfect example. Remember ‘ductile’ by thinking of ‘duct’ as a tube that can be stretched.
延展性指材料可以被拉成细丝而不断裂。USB线里的铜导线就是一个很好的例子。把‘ductile’联想成可以拉伸的‘duct（管道）’来记忆。
Malleability is the ability to be hammered or rolled into thin sheets. Aluminium foil is highly malleable. The word shares its root with ‘mallet’, a hammer.
可锻性是能被锤击或碾压成薄板的能力。铝箔就是高度可锻的。这个词与‘mallet（木槌）’同源。
Hardness measures resistance to scratches and dents. A diamond is extremely hard, while chalk is soft. Associate ‘hardness’ with the Mohs hardness scale you may have tried in science.
硬度衡量抵抗划痕和凹痕的能力。金刚石极硬，而粉笔很软。把‘hardness’与科学课上可能试过的莫氏硬度表联系起来。
Elasticity is the property of returning to original shape after being stretched or compressed. A rubber band shows high elasticity; a piece of clay does not. You can remember it because elastic bands are ‘elastic’.
弹性是在被拉伸或压缩后恢复原状的性质。橡皮筋表现出高弹性；粘土则没有。你可以记住弹性的英文‘elasticity’和橡皮筋‘elastic band’同源。
2. Forces & Structures | 力与结构
Tension is a pulling force that tries to stretch a material. When you hang a weight on a spring, the spring experiences tension. Think ‘tense’ like a tightrope.
张力是试图拉伸材料的拉力。当你把一个重物挂在弹簧上时，弹簧承受张力。联想‘tense’就像绷紧的绳索。
Compression is a pushing force that squeezes a material. The legs of a chair are under compression when you sit down. Remember ‘compress’ means to press together.
压力是挤压材料的推力。当你坐下时，椅子腿就承受着压力。记住‘compress’意为压在一起。
Shear force acts across a material, making layers slide past each other. Using scissors to cut paper applies shear force. Picture two opposing forces sliding like blades.
剪切力作用在材料的横截面上，使材料层相互滑移。用剪刀剪纸就施加了剪切力。想象两股对向的力像刀刃一样滑动。
Torsion is a twisting force. When you wring out a wet towel, you apply torsion. It helps to think of a ‘torsion bar’ in a car suspension.
扭转力是一种扭动的力。当你拧干湿毛巾时，你就在施加扭转力。想象汽车悬挂中的‘扭转杆’有助于记忆。
A beam is a horizontal structural member that carries loads. A floor joist is a beam. The term ‘beam’ can be recalled by imagining a beam of light spanning across a room.
梁是承载载荷的水平结构构件。地板搁栅就是一种梁。想象一束横跨房间的光束（beam of light）来记忆‘beam’。
A strut resists compression, while a tie resists tension. In a roof truss, the sloping members that keep the roof from sagging are often ties. Think ‘tie’ ties things together, so it takes tension.
支柱抵抗压力，而拉杆抵抗拉力。在屋架中，防止屋顶下挠的斜向构件通常是拉杆。想一下‘tie’把东西绑在一起，所以承受拉力。
3. Mechanical Components | 机械部件
A lever is a rigid bar that pivots on a fulcrum to amplify an input force. Scissors and see‑saws are levers. Recall ‘lever’ by saying ‘lever makes heavy things light’.
杠杆是绕支点转动的刚性杆，用来放大输入力。剪刀和跷跷板都是杠杆。用‘杠杆让重物变轻’的口诀记忆。
A linkage is a system of connected levers or rods that transmit motion and force. The steering system in a bike uses a linkage. Think of links in a chain.
连杆机构是由连接的杠杆或杆件组成的系统，用于传递运动和力。自行车的转向系统就使用了连杆机构。联想链条中的链节。
Gears are toothed wheels that mesh together to change speed, torque or direction. A bicycle’s gears allow you to pedal easier uphill. Remember the phrase ‘gear up for speed’.
齿轮是啮合在一起以改变速度、扭矩或方向的带齿轮子。自行车的齿轮让你上坡时更省力。记住短语‘gear up for speed（加速）’。
A pulley uses a rope and a grooved wheel to lift loads with less effort. A flagpole uses a simple pulley. It sounds like ‘pull’, which is exactly what it does.
滑轮利用绳索和带槽的轮子，用较小的力提升重物。旗杆就使用简单的滑轮。它的发音像‘pull（拉）’，这正是它的功能。
A cam is a rotating or sliding piece that converts rotary motion into reciprocating motion. The bump on a cam pushes a follower. Think of a cam‑shaft in an engine—cams make things ‘pop’ up and down.
凸轮是一个旋转或滑动的零件，将旋转运动转换为往复运动。凸轮上的凸起推动从动件。想象发动机里的凸轮轴——凸轮让部件‘弹起’落下。
A crank is an arm attached at right angles to a shaft, converting circular motion into rotary or reciprocating motion. The pedals on a bicycle are cranks. Picture the old‑fashioned hand crank on a pencil sharpener.
曲柄是一个与轴成直角连接的臂，将圆周运动转换为旋转或往复运动。自行车的脚踏板就是曲柄。想象老式卷笔刀上的手摇曲柄。
4. Electronics Basics | 电子基础
Current (I) is the flow of electric charge, measured in amperes (A). Think of it as the amount of water flowing through a pipe. You can remember ‘current’ because it ‘currently’ flows along the wire.
电流（I）是电荷的流动，以安培（A）为单位。把它想象成管道中流动的水量。利用‘current’现在进行时的含义‘正在流动’来记忆。
Voltage (V) is the electrical pressure that pushes current around a circuit, measured in volts (V). It is like water pressure pushing water through a hose. The V in volt is a visual clue for ‘push’.
电压（V）是推动电流在电路中流动的电压力，以伏特（V）为单位。就像水压推动水流过软管一样。字母V可以想象成一个向下压的箭头。
Resistance (R) opposes the flow of current, measured in ohms (Ω). A narrow pipe gives more resistance to water flow. The zigzag symbol for a resistor looks like an obstacle course.
电阻（R）阻碍电流流动，以欧姆（Ω）为单位。狭窄的管道对水流有更大的阻力。电阻器的锯齿形符号看起来就像障碍赛道。
V = I × R
Ohm’s Law links these three concepts. If voltage is constant, increasing resistance reduces current. Memorise the triangle with V at the top and I, R at the bottom.
欧姆定律将这三个概念联系起来。如果电压恒定，电阻增大电流就减小。记住三角图形：V在上方，I和R在下方。
A series circuit has only one loop for current to flow. If one component fails, all go off—like old fairy lights. The word ‘series’ suggests a single line of components.
串联电路只有一条电流回路。如果一个元件损坏，所有灯都熄灭——就像老式的装饰小彩灯。‘series’一词暗示元件排成一列。
A parallel circuit provides multiple paths for current. If one bulb blows, the others stay on—like modern household lighting. ‘Parallel’ lines stay separate yet run alongside each other.
并联电路提供多条电流通路。如果一个灯泡坏了，其他灯仍旧亮着——就像现代家用照明。‘parallel’平行线彼此分开又并排而行。
Key components: a resistor limits current, an LED emits light when current flows, a switch opens or closes the circuit, and a battery provides voltage. Use the acronym ‘V-R-L-S’ (Very Reliable Light Switch) to recall Voltage source, Resistor, LED, Switch.
关键元件：电阻器限流，LED通电流时发光，开关接通或断开电路，电池提供电压。用首字母缩略词‘V-R-L-S’(非常可靠的灯开关)来记住电压源、电阻、LED、开关。
5. Manufacturing Processes | 制造工艺
Marking out is the first step in making a product accurately. Engineers use a steel rule, scriber and try square to draw guide lines on a material. Think of it as ‘drawing a map’ before starting a journey.
划线是精确制造产品的第一步。工程师用钢尺、划线针和直角尺在材料上画出引导线。把它想象成出发前‘绘制地图’。
Sawing is cutting material using a saw with teeth. A hacksaw is used for metals and a coping saw for intricate shapes in wood or plastics. Remember the ‘saw’ sound—teeth cutting through material.
锯切是用带齿的锯切割材料。钢锯用于金属，线锯用于在木材或塑料上锯出复杂形状。听‘saw’的发音就像锯齿在切割材料。
Filing removes small amounts of material to smooth edges or shape a workpiece. A flat file can make an edge straight. ‘File’ your work just like you file your nails.
锉削去除少量材料以平滑边缘或修整工件。平锉可以修直边缘。像修剪指甲一样‘file（锉）’你的工件。
Drilling creates a hole using a rotating drill bit. For safety, always clamp the workpiece. The drill ‘twists’ into the material—imagine twisting a key into a lock.
钻孔使用旋转的钻头打出孔洞。为了安全，始终夹紧工件。钻头‘扭’进材料——想象把钥匙扭进锁孔。
Joining methods include using adhesives (glue) for plastics and wood, and soldering for electronic metals. Soldering melts a filler metal (solder) to bond wires. Think ‘solder’ sounds like ‘solid’—it makes connections solid.
连接方法包括用胶粘剂粘合塑料和木材，以及用焊接连接电子金属。焊接熔化填充金属（焊料）来接合导线。‘solder’听起来像‘solid（坚固的）’——它使连接牢固。
Injection moulding forces molten plastic into a mould to make identical parts quickly. Lego bricks are made this way. Imagine injecting medicine with a syringe—plastic is injected into a mould.
注塑成型将熔融塑料压入模具中，快速制造相同零件。乐高积木就是这样制造的。想象用注射器注射药物——塑料被注入模具。
6. Design & Evaluation | 设计与评估
A design brief is a short statement that outlines the problem, the target user and the main requirements. It is the ‘starter’ document for any project. Think of it as a ‘brief’ summary of the mission.
设计简报是一份简短陈述，概括了问题、目标用户和主要要求。它是任何项目的‘启动’文件。把它看作任务的简要（brief）总结。
A specification lists measurable criteria the product must meet, such as weight, size, cost and materials. The word ‘spec’ reminds you to be specific.
规格说明书列出了产品必须达到的可量化标准，如重量、尺寸、成本和材料。‘spec’这个词提醒你要具体（specific）。
Modelling means making a simple representation to test ideas. Card models and CAD 3D models are both forms of modelling. A fashion model displays clothes—your design model displays your concept.
建模是指制作简单的表现形式以测试想法。纸板模型和CAD三维模型都是建模的形式。时装模特展示服装；你的设计模型展示你的概念。
CAD stands for Computer‑Aided Design. It allows you to draw, modify and simulate a product virtually. Remember ‘CAD’ gives you a computer ‘pad’ for drawing.
CAD代表计算机辅助设计。它让你能虚拟地绘制、修改和仿真产品。记住‘CAD’给你一块计算机‘画板（pad的谐音）’。
CAM means Computer‑Aided Manufacture, where computers control machines like laser cutters or 3D printers. After you draw in CAD, CAM makes it real. Think ‘CAM’ cam‑mands the machine.
CAM指计算机辅助制造，由计算机控制激光切割机或3D打印机等机器。你在CAD中绘图后，CAM把它变成实物。‘CAM’像是对机器发号施令（command）。
Evaluation happens at the end of a project: you test the product against the specification and suggest improvements. The ‘value’ part of evaluation means you are judging the product’s value.
评估发生在项目末尾：你对照规格说明书测试产品，并提出改进建议。evaluation中的‘value’表示你在判断产品的价值。
7. Measurement & Tools | 测量与工具
A steel rule is a rigid metal ruler marked in millimetres, perfect for straight‑line measuring. The word ‘rule’ hints that it provides a straight ruling edge.
钢尺是一把带毫米刻度的刚性金属尺，非常适合直线测量。‘rule’这个词暗示它提供了直尺边。
A try square checks right angles and marks perpendicular lines. The blade and stock form a perfect 90°. Think you ‘try’ the squareness of an edge.
直角尺用于检查直角和画垂直线。尺身和尺座构成完美的90°。想象你‘试（try）’一下边缘是否方直。
Vernier callipers measure internal and external diameters and depths with great precision. They have two scales. The word ‘Vernier’ can be remembered as ‘very near’—reading it gets you very near the true measurement.
游标卡尺以很高精度测量内外径和深度。它有两条刻度。‘Vernier’可以记作‘very near（非常接近）’——读数能极其接近真实尺寸。
A micrometer measures small thicknesses to 0.01 mm. It uses a screw thread to advance a spindle. Picture ‘micro’ meaning tiny, just like a micro‑metre.
千分尺测量小厚度，精确到0.01毫米。它利用螺纹推动测杆前进。想象‘micro’表示微小，就像微米。
A spirit level contains a bubble in liquid to check whether a surface is perfectly horizontal or vertical. ‘Spirit’ refers to the alcohol liquid inside. When the bubble is centred, you are ‘level‑headed’.
水平尺内含液体气泡，用来检查表面是否完全水平或垂直。‘spirit’指内部的酒精液体。当气泡居中时，你就‘头脑冷静（level‑headed）’了。
A multimeter measures voltage, current and resistance in a circuit. It is a multi‑function meter. Remember it can measure ‘multiple’ electrical quantities.
万用表测量电路中的电压、电流和电阻。它是一种多功能仪表。记住它能测量‘多种（multiple）’电量。
8. Energy & Power | 能源与动力
Kinetic energy is the energy of movement. A rolling ball has kinetic energy. ‘Kinetic’ sounds like ‘kinetic’—imagine kids running around noisily.
动能是运动的能量。滚动的球具有动能。‘kinetic’的发音让人联想到小孩子到处跑动。
Potential energy is stored energy ready to be released. A rock at the top of a hill has gravitational potential energy. Think of it as the ‘potential’ to move.
势能是储存起来等待释放的能量。山顶的石头具有重力势能。把它想象成运动的‘潜力’。
Power is the rate at which energy is transferred or work is done, measured in watts (W). A 60 W lamp converts 60 joules of electrical energy every second. Remember ‘power’ is how fast energy is spent.
功率是能量转换或做功的速率，以瓦特（W）为单位。一盏60 W的灯每秒转换60焦耳电能。记住‘power’表示能量消耗的速度。
P = V × I
Electrical power can be found by multiplying voltage and current. This is a handy equation for analysing simple circuits.
电功率可以通过电压乘以电流求出。这是分析简单电路时一个方便实用的公式。
Efficiency compares the useful energy output to the total energy input, often given as a percentage. No system is 100% efficient—some energy is always lost as heat. The formula is: Efficiency = (Useful energy output / Total energy input) × 100%.
效率比较有用的能量输出与总能量输入，通常以百分比表示。没有系统是100%有效的——总有一些能量以热的形式损失。公式是：效率 = (有用的能量输出 / 总能量输入) × 100%。
Renewable energy comes from sources that won’t run out, like solar, wind and hydroelectric. Non‑renewable includes fossil fuels. ‘Renew’ means to make new again—sunlight renews every morning.
可再生能源来自不会耗尽的资源，如太阳能、风能和水力。不可再生能源包括化石燃料。‘renew’意为更新——阳光每天早上都重新出现。
9. Safety Terminology | 安全术语
PPE stands for Personal Protective Equipment. In the workshop, this includes safety goggles, aprons and ear defenders. Think ‘Protect Yourself’ with the letter P.
PPE代表个人防护装备。在车间里，这包括护目镜、工作围裙和听力防护器。联想字母P代表‘Protect Yourself（保护自己）’。
A hazard is anything with the potential to cause harm, such as a sharp blade or a hot surface. ‘Hazard’ warning lights flash when there is danger.
危险源是任何有潜在可能造成伤害的事物，如锐利的刀片或高温表面。当有危险时，‘hazard’警示灯会闪烁。
A risk is the likelihood that a hazard will cause harm, combined with the severity of the outcome. You carry out a risk assessment by spotting hazards and deciding on control measures. Think ‘risk = chance of getting hurt’.
风险是指危险源造成伤害的可能性，与后果严重程度的结合。你通过识别危险源并确定控制措施来进行风险评估。记住‘风险 = 受伤的机会’。
Control measures are steps taken to reduce risk, such as using a guard on a saw or wearing gloves. The word ‘control’ implies you are taking charge of the danger.
控制措施是为降低风险而采取的措施，比如在锯上加装防护罩或戴手套。‘control’这个词意味着你在掌控危险。
Safety signs use colours and symbols to communicate guidance. Red circles with a diagonal line mean prohibition (must not do); blue circles mean mandatory (must do); yellow triangles mean warning. Remember traffic lights: red stop, blue must do, yellow caution.
安全标志用颜色和符号传达指引。红色圆圈加斜杠表示禁止（禁止做）；蓝色圆圈表示强制（必须做）；黄色三角形表示警告。记成交通灯：红停，蓝必须做，黄警告。
10. Quick Memorisation Techniques | 速记技巧
Create acronyms from the first letters of a group of terms. For example, the properties copper, aluminium, gold and iron share high conductivity can be remembered by ‘CAGI Cools’—though not a real word, the image of a cool metal helps.
用一组术语的首字母创建缩略词。例如，铜、铝、金和铁共有的高导电性可用‘CAGI Cools’来记——虽然不是真词，但冰冷的金属形象能帮助记忆。
Use visual association: link an abstract term to a striking image. For shear force, picture a giant pair of shears cutting a metal bar. The more bizarre the image, the more memorable it becomes.
使用视觉联想法：将抽象术语与醒目的图像联系起来。对于剪切力，想象一把巨大的剪刀正在剪断金属棒。图像越奇特，就越难忘。
Chunk information into smaller groups. Instead of trying to memorise all twelve mechanical components at once, group them into levers, rotary parts (gears, pulleys, cams, cranks) and connectors (linkages, belts, chains).
将信息分成小‘组块’。不要一次试图记住所有十二种机械部件，而是将它们分类为杠杆、转动零件（齿轮、滑轮、凸轮、曲柄）和连接件（连杆、皮带、链条）。
Build a memory palace: mentally place each term in a room of your house. Imagine tension hanging from the ceiling, compression on the floor, torsion twisting on a doorknob, and shear on a pair of scissors on the desk. Walking through your house reinforces the sequence.
建造记忆宫殿：在脑中把每个术语放到你家里的一个房间。想象张力挂在天花板上，压力在地板上，扭转力在门把手上扭动，剪切力在桌子上的剪刀上。在脑海中走过你的家能强化顺序。
Teach someone else. Explaining terms like ‘injection moulding’ to a friend forces you to simplify and strengthen your own understanding. The act of speaking cements the vocabulary.
教给别人。向朋友解释‘注塑成型’等术语会迫使你简化并加深自己的理解。说的过程能牢固记住词汇。
Make a vocabulary wall chart with drawings, colour codes and key words. Review it daily for five minutes. Repetition over time, not cramming, moves vocabulary into long‑term memory.
制作一张词汇墙图表，附有绘图、颜色编码和关键词。每天复习五分钟。经过时间的重复，而不是考前突击，能将词汇移入长期记忆。
Published by TutorHao | Engineering Revision Series | aleveler.com
更多咨询请联系16621398022（同微信）
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导，国外大学本科硕士研究生博士课程论文辅导