📚 Year 8 Edexcel Engineering: Quick Guide to Key Terms and Vocabulary | Year 8 Edexcel 工程：关键术语词汇速记指南
In Year 8 Engineering, building a strong foundation in key vocabulary is essential for understanding concepts, communicating ideas, and solving design problems. This quick reference guide introduces the most important terms you will encounter in the Edexcel curriculum, grouped by topic. Each term is presented with a clear definition in English and its Chinese equivalent, helping bilingual learners reinforce their knowledge and memory.
在8年级工程课程中，掌握关键术语的坚实基础对于理解概念、交流想法和解决设计问题至关重要。本速查指南按主题分组介绍了Edexcel课程中最重要的术语。每个术语均配有清晰的英文定义和中文对应词，帮助双语学习者巩固知识并强化记忆。
1. Forces and Motion | 力与运动
Forces and motion are fundamental to engineering. Understanding how objects move and interact helps engineers design everything from bridges to vehicles. Key terms include the types of forces and measurements of movement.
力与运动是工程学的基础。理解物体如何运动及相互作用有助于工程师设计从桥梁到车辆的各种事物。关键术语包括力的类型和运动的测量。
Force: A push or pull acting upon an object as a result of its interaction with another object, measured in newtons (N).
力：物体与另一物体相互作用而产生的推或拉，以牛顿（N）为单位。
Gravity: The force of attraction between objects with mass; on Earth it gives weight to physical objects and pulls them toward the centre.
重力：有质量物体之间的吸引力；在地球上它赋予物体重量，并将它们拉向地心。
Friction: The resistive force that opposes motion between two surfaces in contact.
摩擦力：抵抗两个接触表面之间相对运动的阻力。
Mass: The amount of matter in an object, measured in kilograms (kg). It does not change with location.
质量：物体所含物质的量，以千克（kg）为单位，不随位置改变。
Weight : The force exerted on an object due to gravity, calculated as mass x gravitational field strength (W = mg), measured in newtons.
重量：由于重力作用在物体上的力，计算为质量 x 重力场强度（W = mg），以牛顿为单位。
2. Simple Machines | 简单机械
Simple machines are devices that make work easier by changing the direction or magnitude of a force. Engineers use them in countless mechanisms. The lever is one of the most basic simple machines, with its own specific vocabulary.
简单机械是通过改变力的方向或大小来使工作更轻松的装置，工程师在无数机构中使用它们。杠杆是最基本的简单机械之一，有其专门的术语。
Lever: A rigid bar that rotates around a fixed point called the fulcrum, used to lift or move loads.
杠杆：绕固定点（支点）旋转的刚性杆，用于举起或移动负载。
Fulcrum: The pivot point on which a lever rests and turns.
支点：杠杆支撑和转动的枢轴点。
Effort: The force applied to a lever to move a load.
动力：施加在杠杆上以移动负载的力。
Load: The object or resistance that is being moved by the lever.
负载：被杠杆移动的物体或阻力。
Mechanical Advantage: The ratio of the output force produced by a machine to the input force applied; a measure of how much a machine multiplies force.
机械利益：机器产生的输出力与施加的输入力之比，衡量机器增力倍数的指标。
3. Materials and Their Properties | 材料及其特性
Selecting the right material is a crucial part of engineering design. Materials can be classified as metals, polymers (plastics), ceramics, and composites. Their properties - such as hardness, toughness, and strength - determine their suitability for different applications.
选择合适的材料是工程设计的关键部分。材料可分为金属、聚合物（塑料）、陶瓷和复合材料。它们的特性（如硬度、韧性和强度）决定了它们在不同应用中的适用性。
Metal: A material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity (e.g., steel, aluminium).
金属：一种通常坚硬、有光泽、可锻、可熔且延展的材料，具有良好的导电导热性（如钢、铝）。
Plastic: A synthetic material made from polymers that can be moulded into shape while soft and then set; widely used for lightweight and corrosion-resistant parts.
塑料：一种由聚合物制成的合成材料，可在柔软时模塑成型然后固化，广泛用于轻质、耐腐蚀零件。
Hardness: The resistance of a material to indentation, scratching, or abrasion.
硬度：材料抵抗压痕、划伤或磨损的能力。
Toughness: The ability of a material to absorb energy and plastically deform without fracturing.
韧性：材料吸收能量并发生塑性变形而不断裂的能力。
Strength: The capacity of a material to withstand an applied load without failure or plastic deformation.
强度：材料承受施加负载而不发生失效或塑性变形的能力。
4. Structures and Loads | 结构与荷载
Structures must support loads without collapsing. Engineers analyse forces acting on structural elements such as beams and columns, identifying tension, compression, and shear to ensure safety and efficiency.
结构必须支撑荷载而不倒塌。工程师分析作用在梁、柱等结构构件上的力，识别拉伸、压缩和剪切，以确保安全和效率。
Beam: A horizontal structural member that resists loads applied perpendicular to its length, primarily through bending.
梁：一种水平结构构件，主要靠弯曲抵抗垂直于其长度的荷载。
Column: A vertical structural element that transmits compressive loads from above to the foundation below.
柱：一个垂直结构构件，将上方的压缩荷载传递到下方的基础。
Tension: The force that attempts to pull a material apart or elongate it.
拉伸：试图将材料拉开或伸长的力。
Compression: The force that pushes or squeezes a material together, shortening it.
压缩：将材料推压或挤压在一起、使其缩短的力。
Shear: A force that causes parts of a material to slide past one another in opposite directions, often occurring in joints and connections.
剪切：导致材料不同部分沿相反方向相对滑动的力，常发生在节点和连接处。
5. Energy and Power | 能源与动力
Energy is the capacity to do work, and it exists in many forms. In engineering, we often deal with mechanical energy - kinetic and potential - as well as the power rating of machines. Understanding energy conversion is key to designing efficient systems.
能量是做功的能力，以多种形式存在。在工程中，我们经常处理机械能（动能和势能）以及机器的功率。了解能量转换是设计高效系统的关键。
Energy: The ability to do work, measured in joules (J).
能量：做功的能力，以焦耳（J）为单位。
Kinetic Energy: The energy possessed by an object due to its motion, calculated as 1/2 x mass x speed².
动能：物体因运动而具有的能量，计算公式为 1/2 x 质量 x 速度²。
Potential Energy: The energy stored in an object due to its position or configuration, such as gravitational potential energy (mass x gravity x height).
势能：物体因位置或构造而储存的能量，如重力势能（质量 x 重力 x 高度）。
Power: The rate at which work is done or energy is transferred, measured in watts (W).
功率：做功或能量传递的速率，以瓦特（W）为单位。
Renewable Energy: Energy from sources that are naturally replenished, such as solar, wind, and hydro power.
可再生能源：来自自然补充的资源，如太阳能、风能和水力。
6. Electronics and Circuits | 电子与电路
Basic electronics knowledge is essential for understanding control systems and powered devices. Simple circuits involve a power source, conductors, and components such as switches and resistors. Key electrical quantities include voltage, current, and resistance.
基本的电子知识对于理解控制系统和动力设备至关重要。简单电路包括电源、导体以及开关和电阻等元件。关键的电学量包括电压、电流和电阻。
Circuit: A closed loop through which electric current can flow.
电路：电流可以流过的闭合回路。
Current (I): The flow of electric charge, measured in amperes (A).
电流 (I)：电荷的流动，以安培（A）为单位。
Voltage (V): The electrical potential difference between two points in a circuit, which drives the current, measured in volts (V).
电压 (V)：电路中两点之间的电势差，驱动电流流动，以伏特（V）为单位。
Resistance (R): The opposition to the flow of electric current, measured in ohms (Ω).
电阻 (R)：对电流流动的阻碍，以欧姆（Ω）为单位。
Series Circuit: A circuit in which components are connected end-to-end, so the same current flows through each component.
串联电路：元件首尾相连的电路，因此相同电流流过每个元件。
7. Design Process and Problem Solving | 设计流程与问题解决
Engineering design follows a structured process to develop solutions that meet needs. From defining the problem to testing and evaluating a prototype, engineers rely on specific terminology to communicate their ideas effectively. Key terms describe each stage of the design cycle.
工程设计遵循结构化过程来开发满足需求的解决方案。从定义问题到测试和评估原型，工程师依赖特定术语有效交流想法。关键术语描述设计周期的每个阶段。
Design Brief: A clear statement that outlines
Published by TutorHao | Year 8 工程 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