Force: Science Videos

This series covers forces and motion in physics. You will learn about friction, normal force, momentum, torque, and the force that keeps objects moving in a circle. Real examples include race cars on a track, ice skaters, and a loop-de-loop. You will also learn about harmonic motion, like a spring bouncing back and forth. These ideas explain how everything moves. You should be comfortable with algebra and basic trigonometry. A few videos use calculus.

Note: All Khan Academy content is available for free at www.khanacademy.org