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 a challenging course, but it's very manageable with the right approach. Across 7 units, you'll tackle abstract topics like thermodynamics, electromagnetism, optics, and modern physics, all while building multi-step reasoning and lab analysis skills. The difficulty comes less from math and more from deep conceptual thinking. What makes it manageable: the course uses algebra, not calculus, so the math stays accessible. The bigger challenge is explaining *why* things happen, not just calculating answers. Students who stay consistent with practice problems and review concepts unit by unit tend to do well. Check out AP Physics 2 study guides and practice to stay on top of each unit as you go.
AP Physics 2 is an algebra-based physics course that covers thermodynamics, electricity and magnetism, light and waves, and modern physics. You'll build and test models using algebra, graphs, and diagrams, and apply those models to real-world systems and technologies through labs and multi-step problem solving. The course spans 7 units: Thermodynamics, Electric Force and Field, Electric Circuits, Magnetism and Electromagnetism, Geometric Optics, Waves and Physical Optics, and Modern Physics. It's the second course in a two-part introductory physics sequence, picking up where AP Physics 1 leaves off. Explore all the units at AP Physics 2.
AP Physics 2 is a great fit for students who have already taken AP Physics 1 or a comparable intro physics course and are comfortable with algebra and pre-calculus. It's equivalent to the second course in a college-level algebra-based physics sequence, so it can earn real college credit for science and pre-med majors. Students who thrive in AP Physics 2 tend to enjoy understanding how things work, not just plugging numbers into formulas. If you like connecting ideas across topics like circuits, optics, and atomic physics, this course will feel rewarding. The prerequisite is AP Physics 1 or equivalent, and you should be taking pre-calculus at the same time or have already completed it. If that's you, it's worth going for it. See what the course covers at AP Physics 2.
The AP Physics 2 exam tests your understanding of all 7 units through two main sections: multiple-choice questions and free-response questions. Multiple-choice questions test conceptual understanding and quantitative reasoning, while free-response questions ask you to explain, justify, and solve multi-step problems using algebra, diagrams, and scientific reasoning. Free-response questions often include experimental design and data analysis tasks, reflecting the lab work done throughout the course. The exam covers all major topics: thermodynamics, electric force and circuits, magnetism, optics, waves, and modern physics. For unit-by-unit breakdowns and practice, visit AP Physics 2.
Getting a 5 in AP Physics 2 comes down to building real conceptual understanding in each unit, not just memorizing formulas. Focus on being able to explain your reasoning clearly, because the free-response section rewards written justification and logical problem-solving just as much as correct numbers. Here's what works: - Work through each of the 7 units as you cover them in class, and don't let confusion pile up. - Practice free-response questions regularly, especially ones that ask you to design experiments or analyze data. - Review thermodynamics, electric circuits, and magnetism carefully since those tend to trip students up. - Use AP Physics 2 study guides and practice problems to reinforce each unit before the exam. Consistency across the year matters more than cramming at the end.
AP Physics 2 covers 7 units that span the major areas of algebra-based physics beyond mechanics. The units build on each other and connect ideas across energy, fields, waves, and modern science. Here are the 7 units: 1. Unit 9: Thermodynamics 2. Unit 10: Electric Force, Field, and Potential 3. Unit 11: Electric Circuits 4. Unit 12: Magnetism and Electromagnetism 5. Unit 13: Geometric Optics 6. Unit 14: Waves, Sound, and Physical Optics 7. Unit 15: Modern Physics You can go unit by unit with study guides and practice at AP Physics 2.
The best way to study for AP Physics 2 is to keep up with each unit throughout the year and practice applying concepts, not just reviewing notes. Since the exam rewards explanation and reasoning, studying should include working through problems and writing out your thinking, not just reading. A practical approach: - After each unit, review key ideas and do practice problems before moving on. - Pay extra attention to units that feel abstract, like Modern Physics and Magnetism, since those take more time to click. - In the weeks before the exam, go back through all 7 units and focus on free-response practice. - Use AP Physics 2 study guides and unit resources to structure your review. Steady, consistent effort across the year is what separates students who feel prepared from those who don't.