Rotational motion refers to the movement of an object around a central point or axis. This type of motion is common in various everyday objects, such as wheels, spinning tops, and planets. In rotational motion, every point on the object moves in a circular path, and the speed of rotation is measured in terms of angular velocity. Key concepts in rotational motion include torque, which is the force that causes an object to rotate, and moment of inertia, which is a measure of how difficult it is to change the rotational motion of an object. Understanding these principles helps explain how objects behave when they spin or rotate.