📚 AS AQA Physics 9630 PH01 International AS Specimen Paper 2016: Mechanics, Materials and Atoms | AS AQA 物理 9630 PH01 国际 AS 样卷 2016：力学、材料与原子
This revision guide examines the AS AQA Physics 9630 PH01 International AS specimen paper from 2016. The paper is built around Unit 1: Mechanics, Materials and Atoms, and it tests a mix of recall, numerical problem-solving, graph interpretation and practical understanding. Working through this specimen reveals the depth expected at AS level and helps you practise the exact command words and mark schemes used by AQA.
本复习指南解析 2016 年 AS AQA 物理 9630 PH01 国际 AS 样卷。该试卷围绕第 1 单元：力学、材料与原子，综合考查记忆、数值计算、图像解读和实践理解。通过研读这份样卷，你可以了解 AS 阶段要求的掌握深度，并熟悉 AQA 使用的指令词和评分方案。
1. Exam Structure and Mark Allocation | 考试结构与分值分配
The PH01 paper is a 70-mark written examination lasting 1 hour 30 minutes. It contains Section A with 20 multiple-choice questions worth 1 mark each, and Section B with structured short and long answer questions worth 50 marks. Section A usually covers quick recalls such as unit conversions, scalar versus vector classification, and simple calculations. Section B requires explanations, derivations and extended calculations on mechanics, materials and atomic physics. Some questions in Section B may include practical contexts such as measuring g or determining the Young modulus of a wire.
PH01 试卷为 70 分笔试，时限 1 小时 30 分钟。其中 Section A 含 20 道选择题，每题 1 分；Section B 为结构化简答与长答题，共 50 分。Section A 通常考查快速回忆，如单位换算、标量与矢量分类、简单计算。Section B 则要求对力学、材料和原子物理进行解释、推导和较长的计算。部分题目会以实验情境出现，例如测量 g 值或测定金属丝的杨氏模量。
Because Section B carries more than twice the marks of Section A, you should plan roughly 1 minute per mark. Spend no more than 20 minutes on the multiple-choice section, leaving about 70 minutes for Section B. This specimen paper often places a high-mark question at the end, so use the space after easier calculations to secure marks before attempting longer synoptic tasks.
由于 Section B 的分值超过 Section A 的两倍，你应大致按每分钟 1 分来规划时间。选择题部分不要超过 20 分钟，留出约 70 分钟给 Section B。这份样卷通常在最后设置高分题，因此先完成较容易的计算，确保拿到基本分后再处理综合性较强的大题。
2. Mechanics: Motion and Forces | 力学：运动与力
he specimen paper often gives a velocity-time graph and asks you to find acceleration from the gradient or displacement from the area under the graph. Always check whether vectors such as initial velocity u and final velocity v have opposite signs when an object changes direction.
在 PH01 力学中，你必须熟练掌握匀加速直线运动的四个 SUVAT 方程：v = u + at、s = ut + ½at²、s = ½(u + v)t 和 v² = u² + 2as。样卷常给速度-时间图像，要求通过斜率求加速度，或通过图线下面积求位移。当物体改变运动方向时，务必检查初速度 u 和末速度 v 等矢量是否带有相反的符号。
Force questions usually combine Newton' paper rewards clear labelling of forces and correct use of g = 9.81 N kg⁻¹ or 9.81 m s⁻².
力的题目通常将牛顿第二定律 F = ma 与受力分析结合。你可能需要分解斜面上的重力分量，考虑滑轮系统中的张力，或计算抛体所受合力。样卷对清晰标注力和正确使用 g = 9.81 N kg⁻¹ 或 9.81 m s⁻² 给予分数。
3. Energy, Work and Power | 能量、功和功率
tant speed up a hill, the engine power equals the sum of the rate of work done against gravity and against resistive forces.
能量守恒贯穿 PH01 样卷。关键关系式包括功 W = F s cos θ、动能 Eₖ = ½mv²、重力势能 Eₚ = mgΔh 和功率 P = W/t = Fv。当汽车以恒定速度上坡时，发动机功率等于克服重力和阻力做功的功率之和。
cy questions are also common: efficiency = useful output energy / total input energy × 100% never perfectly elastic, linking energy loss to heating, sound and permanent deformation.
效率问题也很常见：效率 = 有用输出能量 / 总输入能量 × 100%。在比较 J 和 kW h 时要注意单位。样卷可能要求解释为什么真实碰撞永远不会完全弹性，并联系能量损失与发热、声音和永久形变。
4. Momentum and Collisions | 动量与碰撞
ecimen, you might be asked to calculate the recoil speed of a nucleus after alpha decay or the common velocity after a perfectly inelastic collision. Always assign a positive direction before substituting values.
动量定义为 p = mv，在封闭系统中动量守恒可写为 m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂。在 PH01 样卷中，你可能需要计算 α 衰变后原子核的反冲速度，或完全非弹性碰撞后的共同速度。代入数值前务必先规定正方向。
ce-time graph equals impulse. When a ball bounces, the change in momentum is not mv − (−mu) but mv − mu if the rebound direction is taken as positive; the specimen paper often traps students who forget the sign change.
冲量等于动量的变化，即 FΔt = Δ(mv)。力-时间图像下的面积等于冲量。当球反弹时，动量变化不是 mv − (−mu) 而是 mv − mu，前提是将反弹方向取为正；样卷常给忘记符号变化的考生设下陷阱。
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