📚 Year 13 OCR Physics: Quick Vocabulary and Terminology Memorization Guide | Year 13 OCR 物理：词汇术语速记指南
Mastering physics vocabulary is crucial for exam success. This guide provides essential Year 13 OCR Physics terminology, paired with bilingual explanations and memory aids to help you quickly recall definitions and apply concepts in calculations and extended responses. Use these memory hooks and clear definitions to build your confidence and precision.
掌握物理词汇是考试成功的关键。本指南提供 Year 13 OCR 物理核心术语，配以双语解释和记忆辅助方法，帮助你在计算和论述题中快速回忆定义、运用概念。通过这些记忆口诀和清晰的定义，提升你的准确性和信心。
1. Circular Motion & Oscillations | 圆周运动与振动
Angular velocity (ω): rate of change of angular displacement, ω = Δθ/Δt, unit rad s-1. Memory: think of it as the rotational speedometer – how fast an object spins through an angle.
角速度 (ω)：角位移的变化率，ω = Δθ/Δt，单位 rad s-1。记忆：可以想成旋转的速度计——物体转过角度的快慢。
Centripetal force (Fc): resultant force directed towards the centre of a circular path, F = m v2 / r. Memory: ‘centripetal’ means centre-seeking; always perpendicular to velocity.
向心力 (Fc)：指向圆心的合力，F = m v2 / r。记忆：向心即“寻找中心”的力，始终与速度垂直。
Period (T) & frequency (f): T = 1/f is time for one complete cycle; f is number of cycles per second, hertz (Hz). Memory: period is how long one wiggle takes; frequency is how many wiggles per second.
周期 (T) 与频率 (f)：T = 1/f 是完成一次完整循环的时间；f 是每秒循环次数，单位赫兹 (Hz)。记忆：周期是一次摆动有多久，频率是每秒摆动多少次。
Simple harmonic motion (SHM): acceleration is proportional to displacement from equilibrium and directed towards equilibrium: a = -ω2x. Memory: the restoring force always pulls back, like a mass on a spring.
简谐运动 (SHM)：加速度与离开平衡位置的位移成正比且总指向平衡位置：a = -ω2x。记忆：回复力总是往回拉，就像弹簧上的小球。
Amplitude (x0 or A): maximum displacement from equilibrium. Memory: the ‘height’ of the oscillation from the middle to a crest.
振幅 (x0 或 A)：离开平衡位置的最大位移。记忆：从中间到波峰的“高度”。
Phase difference: difference in phase angle between two oscillating particles or waves, often expressed in radians. Memory: a full cycle is 2π rad; a phase difference of π rad is completely out of step.
相位差：两个振动质点或波之间的相位角差异，常用弧度表示。记忆：完整周期是 2π rad；相位差 π rad 就是完全反相。
Resonance: large-amplitude oscillation when driving frequency matches natural frequency. Memory: the singer shattering a wine glass – energy transfer is most efficient.
共振：当驱动频率等于固有频率时振幅剧增。记忆：歌手震碎酒杯——此时能量传递效率最高。
Damping: removal of energy from an oscillating system. Light damping: amplitude decreases gradually. Critical damping: returns to equilibrium quickly without oscillation. Heavy damping: slow return without oscillation. Memory: think of car suspension – critical damping gives a smooth ride.
阻尼：振动系统能量逐渐耗散。轻阻尼：振幅逐渐减小；临界阻尼：不振荡快速回到平衡；过阻尼：缓慢无振荡返回。记忆：汽车悬挂系统——临界阻尼提供最平稳的乘坐感。
2. Gravitational Fields & Orbits | 引力场与轨道
Gravitational field strength (g): force per unit mass, g = F/m, unit N kg-1. Near Earth’s surface g ≈ 9.81 N kg-1. Memory: numerically equal to acceleration of free fall.
引力场强度 (g)：单位质量所受的
Published by TutorHao | Year 13 Physics 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Cancel reply