Welcome to AP®︎/College Physics 1! In AP Physics 1, you'll learn algebra-based classical mechanics. To make sure you’re prepared with the fundamentals, we recommend completing high school …

Welcome to AP®︎/College Physics 2! In AP Physics 2, you'll learn about thermodynamics, electricity and magnetism, light, and modern physics. To make sure you’re prepared with the fundamentals, we …

The physics archive contains legacy physics content, and is not being updated with new content. For our most up-to-date, mastery-enabled courses, check out Middle School Physics, High School Physics, …

Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more.

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AP®︎/College Physics 1 Course challenge Test your knowledge of the skills in this course.

This course is aligned to the high school Next Generation Science Standards (NGSS). If you’ve mastered this content and want to explore physics at the next level, we recommend our AP Physics …

Learn physics using videos, articles, and NGSS-aligned practice exercises. Explore the fundamentals of motion and forces, non-contact interactions, energy, and waves.

Aug 18, 2025 · Covering eight comprehensive units, from kinematics and forces to rotational dynamics, oscillations, and fluids, this course supports AP students, college learners, and anyone interested in …

Nuclear physics Explore how nuclei can change and emit radiation through alpha, beta, and gamma decay. Interpret half-life as the time it takes for half of sample of a radioisotope to decay. Discover …