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 …

Khan Academy offers free, world-class education in physics, covering forces and motion topics.

Physics is built on a foundation of math and it seeks to explain all phenomena in the universe. It forms the basis for other sciences like chemistry and biology. Physics uses simple yet elegant …

Let's think about what physics is and what topics are covered in an introductory physics course.

Learn about all the sciences, from physics, chemistry and biology, to cosmology and astronomy, across hundreds of videos, articles and practice questions.

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of …

¡Bienvenido a las Lecciones de física! La física es el estudio de la materia, el movimiento, la energía y la fuerza. Aquí puedes explorar videos, artículos y ejercicios por tema. Mantenemos …

Madde, hareket, enerji ve kuvveti inceleyen bilim dalına fizik denir.

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 …

说实话，很难确切地定义什么是物理。首先，物理学随着我们的进步和新发现而不断变化。新理论不仅带来了新的答案。它们还产生了新的问题，从以前的物理学理论来看，这些问题甚至可能 …