AP Physics C Mechanics
Core Sentence / 核心句
AP Physics C Mechanics uses calculus and a small set of physical principles to model how systems move, interact, exchange energy and momentum, rotate, gravitate, and oscillate.
中文理解：这门课不是一堆公式，而是用微积分、受力与守恒定律，对一个明确系统在某段过程中的运动建模。
Subject Spine / 学科主干
- Kinematics: Position and Displacement -> Velocity and Speed -> Acceleration
- Dynamics: Free-Body Diagrams -> Newton’s Second Law -> motion
- Energy: Work-Energy Theorem + Mechanical Energy Conservation
- Momentum: Impulse + Conservation of Linear Momentum
- Rotation: Torque -> Rotational Inertia -> Angular Momentum
- Gravitation: Universal Gravitation -> Orbital Motion -> Kepler’s Laws
- Oscillations: restoring law -> Simple Harmonic Motion -> Resonance
- Scientific practice: model -> graph -> Experimental Linearization -> FRQ Scientific Reasoning
Governing Question / 统摄问题
Before choosing an equation, identify the system boundary, the time interval, the requested quantity, and the interaction or conservation law that controls it.
中文抓手：先问“研究谁、看哪段过程、求什么、什么定律真正控制它”，再写方程。
When To Use / 什么时候用
- 需要恢复整个力学知识结构时，从本页选单元。
- 需要回忆课堂推导、图像或例题时，进入 AP物理C力学-课程主页。
- 综合题不知道选 force、energy 还是 momentum 时，进入 AP物理C力学串讲课-全课程模型与方法总复盘。
Watch Out / 易错点
- A formula is valid only under its assumptions; identify the model before substituting numbers.
- Conservation depends on the chosen system and interval; it is not triggered by a keyword alone.
- Energy is scalar, while momentum, force, velocity, torque, and angular momentum require direction or sign conventions.
- Calculus relates local rates and accumulated change; it does not replace the physical law that defines the relationship.
Course Completion / 结课记录
- Orientation and calculus prerequisite: complete
- Lecture notes: 14/14 complete
- Full-course review: complete
- Useful Afterwords guidance: integrated into the course home
- Course hub: AP物理C力学-课程主页
Connected Notes / 连接
- Parent: AP Physics C
- Sibling: Electricity and Magnetism
- Math foundation: AP Calculus BC / Derivatives / Integrals / Differential Equations
- Course map: AP物理C力学Orientation-课程结构与学习地图
- Final review: AP物理C力学串讲课-全课程模型与方法总复盘
- Vault map: UBC Knowledge Graph