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Free AP Physics 2 Study Guide

AP Physics 2 · All 7 Units

Master AP Physics 2 from thermodynamics through modern physics. Flashcards, cheat sheets, essential terms, practice questions, and visual reviews for all 7 units, all completely free.

7 units covered
245+ practice questions
150+ flashcards
College Board aligned
100% free

Choose your unit

Each unit has 6 study resources: flashcards, cheat sheet, essential terms, practice questions, visual review, and FRQ practice.

Unit 1
Heat & Gas Laws
Thermodynamics
Kinetic theory, the ideal gas law, thermal equilibrium, the first and second laws of thermodynamics, and PV diagrams.
15–18% of exam
Start Unit 1 →
Unit 2
Charges at Rest
Electric Force, Field, & Potential
Coulomb's law, electric fields, electric potential energy, and potential difference around point charges.
15–18% of exam
Start Unit 2 →
Unit 3
Charges in Motion
Electric Circuits
Current, resistance, Ohm's law, series and parallel circuits, capacitors, and Kirchhoff's rules.
15–18% of exam
Start Unit 3 →
Unit 4
Fields in Motion
Magnetism & Electromagnetism
Magnetic fields, forces on moving charges and current-carrying wires, and electromagnetic induction.
12–15% of exam
Start Unit 4 →
Unit 5
Mirrors & Lenses
Geometric Optics
Reflection, refraction, Snell's law, mirror and lens equations, and ray diagrams for image formation.
12–15% of exam
Start Unit 5 →
Unit 6
Waves & Interference
Waves, Sound, & Physical Optics
Mechanical waves, standing waves, sound and the Doppler effect, plus diffraction and interference of light.
12–15% of exam
Start Unit 6 →
Unit 7
The Quantum World
Modern Physics
Photons and the photoelectric effect, wave-particle duality, atomic energy levels, and nuclear physics: the final unit on the exam.
12–15% of exam
Start Unit 7 →

About AP Physics 2

AP Physics 2 is an algebra-based, college-level introductory physics course that explores the behavior of heat, electricity, magnetism, light, and the quantum world. The course builds from how gases and heat behave at the macroscopic and microscopic level, through electric and magnetic fields and the circuits they power, to how light and waves behave, and finally to the physics of atoms, photons, and nuclei.

This page covers all 7 units: Thermodynamics, Electric Force, Field, & Potential, Electric Circuits, Magnetism & Electromagnetism, Geometric Optics, Waves, Sound, & Physical Optics, and Modern Physics.

Every page on this site is aligned to the College Board's official AP Physics 2 Course and Exam Description and completely free. Use what works for your study style: flashcards for active recall, the cheat sheet for a one-page overview, or practice questions to test yourself before the exam.

What's included in each unit

Every unit has the same 6 study resources, designed for different learning styles.

Flashcards
Interactive cards per unit
Cheat Sheet
One-page visual summary
Essentials
Key terms and big ideas
Visual Review
Slide-by-slide walkthrough
Practice MCQ
Exam-style questions
FRQ Practice
Free-response practice

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