Physics in Motion

Rotational Motion and Angular Momentum

How objects behave when they are rotating on an axis, such as wheels or spinning tops. Learn about rotational motion, angular momentum, rotational kinetic energy, and rotational work and energy.

Angular Variables

Start with the variables we use to describe angular motion.

Equations of Rotational Motion

Learn the equations we use to describe angular motion.

Rotational Kinetic Energy

Learn about rotational kinetic energy.

Axis Theorems

Learn about the axis theorems.


Learn about torque.

Rotational Work and Power

Learn about rotational work and power.

Angular Momentum

Learn about angular momentum.