AP Physics 2 AP物理2
📌 Course at a glance
· 6 units · key topics drilled across the official outline
· Next exam: 2026-05-05 · 2026-05-05
📝 Full chapter-by-chapter lecture walkthroughs are being written. This page is the course outline — every unit and topic that will be covered, with key concepts you can already start to recognise. Use it as a study map; the chapter notes drop in over the coming weeks.
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Course outline
Unit 9 · Thermodynamics 热力学
Exam weight: 12-18%
9.1 — Thermodynamic Systems and Temperature 热力学系统与温度
· Thermodynamic systems · Temperature and thermal equilibrium · Zeroth Law of Thermodynamics
9.2 — Ideal Gas Law 理想气体定律
· Ideal gas equation PV = nRT · Kinetic molecular theory · Internal energy
9.3 — Kinetic Theory of Gases 气体动理论
· Average kinetic energy of molecules · Temperature and molecular speed · Maxwell speed distribution
9.4 — Laws of Thermodynamics 热力学定律
· First Law of Thermodynamics · Second Law of Thermodynamics · Entropy
9.5 — Thermodynamic Processes 热力学过程
· Isothermal process · Isobaric process · Isochoric process · Adiabatic process
9.6 — PV Diagrams and Heat Engines PV图与热机
· Interpreting PV diagrams · Heat engine efficiency · Carnot cycle
Unit 10 · Electric Force, Field, and Potential 电力、电场和电势
Exam weight: 18-22%
10.1 — Electric Charge and Coulomb's Law 电荷与库仑定律
· Conservation of charge · Coulomb's Law · Force between point charges
10.2 — Electric Field 电场
· Definition of electric field · Electric field of a point charge · Electric field lines
10.3 — Electric Field Due to Charge Distributions 电荷分布产生的电场
· Superposition principle · Continuous charge distributions · Using symmetry
10.4 — Electric Potential Energy 电势能
· Definition of electric potential energy · Potential energy of point charge systems · Work and potential energy
10.5 — Electric Potential 电势
· Definition of electric potential · Equipotential surfaces · Relationship between potential and electric field
10.6 — Conductors and Insulators 导体与绝缘体
· Charge distribution on conductors · Electrostatic shielding · Charging by induction
10.7 — Capacitors and Dielectrics 电容器与电介质
· Definition of capacitance · Parallel plate capacitor · Role of dielectrics · Energy storage
Unit 11 · Electric Circuits 电路
Exam weight: 14-18%
11.1 — Current and Resistance 电流与电阻
· Definition of current · Resistance · Ohm's Law
11.2 — Resistivity and Ohm's Law 电阻率与欧姆定律
· Resistivity · Factors affecting resistance · Ohmic and non-ohmic materials
11.3 — Series and Parallel Circuits 串联与并联电路
· Series resistance · Parallel resistance · Equivalent resistance
11.4 — Kirchhoff's Laws 基尔霍夫定律
· Kirchhoff's junction rule · Kirchhoff's loop rule · Complex circuit analysis
11.5 — Electric Power and Energy 电功率与电能
· Electric power P = IV · Joule heating · Electrical energy consumption
11.6 — DC Circuit Analysis 直流电路分析
· Electromotive force · Internal resistance · Ammeters and voltmeters · Wheatstone bridge
Unit 12 · Magnetism and Electromagnetic Induction 磁学与电磁感应
Exam weight: 14-18%
12.1 — Magnetic Fields and Forces 磁场与磁力
· Magnetic fields · Magnetic field lines · Earth's magnetic field
12.2 — Magnetic Force on Moving Charges 运动电荷受到的磁力
· Lorentz force · Right-hand rule · Circular motion of charged particles in magnetic fields
12.3 — Magnetic Force on Current-Carrying Wires 载流导线受到的磁力
· Force on a current-carrying wire (Ampere force) · Force between parallel wires · Electric motor principle
12.4 — Magnetic Fields from Current 电流产生的磁场
· Magnetic field of a straight wire · Magnetic field of a solenoid · Right-hand rule
12.5 — Electromagnetic Induction 电磁感应
· Magnetic flux · Faraday's Law · Lenz's Law · Induced EMF
12.6 — Applications of Electromagnetic Induction 电磁感应的应用
· Generators · Transformers · Eddy currents
Unit 13 · Geometric and Physical Optics 几何光学与物理光学
Exam weight: 12-16%
13.1 — Reflection and Refraction 反射与折射
· Law of reflection · Law of refraction (Snell's Law) · Total internal reflection
13.2 — Mirrors 镜面
· Plane mirrors · Concave mirrors · Convex mirrors · Mirror equation
13.3 — Lenses 透镜
· Converging lenses · Diverging lenses · Thin lens equation · Magnification
13.4 — Interference and Diffraction 干涉与衍射
· Double-slit interference · Single-slit diffraction · Path length difference · Interference fringes
13.5 — Electromagnetic Waves 电磁波
· Electromagnetic spectrum · Speed of light · Polarization
Unit 14 · Modern Physics 近代物理
Exam weight: 10-14%
14.1 — The Photoelectric Effect 光电效应
· Photon energy E = hf · Work function · Threshold frequency · Photoelectric equation
14.2 — The Bohr Model 玻尔模型
· Quantized energy levels · Hydrogen atom spectrum · Electron transitions
14.3 — Wave-Particle Duality and Matter Waves 波粒二象性与物质波
· de Broglie wavelength · Matter waves · Wave-particle duality
14.4 — Blackbody Radiation and Compton Scattering 黑体辐射与康普顿散射
· Blackbody radiation · Planck's hypothesis · Compton effect · Photon momentum
14.5 — Nuclear Physics 核物理
· Nuclear structure · Radioactive decay · Half-life · Mass-energy equivalence E = mc squared
14.6 — Nuclear Reactions 核反应
· Nuclear fission · Nuclear fusion · Mass defect · Binding energy