Oops. Something went wrong. Please try again. Uh oh, it looks like we ran into an error. You need to refresh. If this problem persists, tell us.

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

Physics uses simple yet elegant math to describe complex phenomena, from galaxies to biological systems. It's about understanding and predicting the universe's complexity based on simple ideas.

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 providing a …

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

Physics deals with the study of the basic laws of nature and their manifestation in different phenomena. Let's learn about its laws and reasons to get excited about it.

Physics and biology The scientific method: Scientists are constantly uncovering new information about how the world works. The scientific method helps us ask questions about our observations and …

Review the characteristics of periodic transverse and longitudinal waves such as wavelength, crest, trough, amplitude, expansion, and compression.

Experimental Study of Photoelectric Effect Learn Experimental setup & saturation current: photoelectric effect Stopping potential & maximum kinetic energy

I am planning to self-study because my school does not offer either Mech or E&M calculus-based physics classes, only AP Physics 1 and 2 (algebra based) and I would like to be as prepared as …