🧲AP Physics 2 Review
AP Physics 2 covers 7 units, from Thermodynamics to Modern Physics. Review each unit with study guides, practice questions, and key terms — compiled by AP educators and updated for the 2027 AP exam.
AP Physics 2 is an algebra-based course on thermodynamics, electricity, magnetism, optics, waves, and modern physics. You build and test models with algebra, diagrams, and reasoning to explain and predict real systems.
Frequently Asked Questions
Is AP Physics 2 hard?
AP Physics 2 is challenging but manageable. The math stays algebra-based, so the harder part is explaining why things happen, not just calculating. Across 7 units you reason through thermodynamics, circuits, magnetism, optics, and modern physics. If you keep up with each unit and practice writing your reasoning, you can do well. Confusion piles up fast, so steady review matters more than last-minute cramming.
How should I start studying for AP Physics 2?
Start by reviewing one unit at a time instead of trying to cover everything at once. Read the key ideas, then immediately work practice problems and write out your reasoning. Begin with high-weight units like Thermodynamics, Electric Force and Field, and Electric Circuits. After each unit, mix in older topics so they stay fresh. Use unit study guides and practice questions to find weak spots early.
Which units are weighted most on the AP Physics 2 exam?
On the multiple-choice section, Unit 9 Thermodynamics, Unit 10 Electric Force, Field, and Potential, and Unit 11 Electric Circuits each carry 15 to 18 percent, making them the highest-weight units. Unit 12 Magnetism and Electromagnetism, Unit 13 Geometric Optics, Unit 14 Waves and Physical Optics, and Unit 15 Modern Physics each carry 12 to 15 percent. Prioritize the first three units, but practice every unit since all appear.
How many free-response questions are on the AP Physics 2 exam?
The free-response section has 4 questions and lasts 100 minutes, worth 50 percent of your score. Each is a set type: Mathematical Routines, Translation Between Representations, Experimental Design and Analysis, and Qualitative/Quantitative Translation. They ask you to derive equations, draw and read representations, design experiments, analyze data, and justify claims. The multiple-choice section has 40 questions over 80 minutes for the other 50 percent.
What math do I need for AP Physics 2?
AP Physics 2 uses algebra and trigonometry, not calculus. You should be comfortable rearranging equations, solving systems, working with ratios and proportions, and reading graphs. Pre-calculus background helps, especially for exponential decay in modern physics and wave relationships. A four-function, scientific, or graphing calculator is allowed on both sections. The real demand is symbolic reasoning: deriving relationships and predicting how quantities change when variables change.