Rotational Motion

Definition

Rotational motion refers to the movement of an object around an axis or center point. It involves the rotation of an object rather than its linear motion and is described by quantities such as angular displacement, angular velocity, and angular acceleration.

Analogy

Imagine a spinning top. As it spins, it undergoes rotational motion, rotating around its central axis.

Related terms

Angular Displacement: Angular displacement measures the change in position or angle of an object undergoing rotational motion. It is usually measured in radians.

Moment of Inertia: Moment of inertia, also known as rotational inertia, measures how resistant an object is to changes in its rotational motion. It depends on both mass and distribution of mass around the axis of rotation.

Torque: Torque is a measure of how effectively a force can cause an object to rotate or change its rotational motion. It determines the rate at which objects accelerate their rotation.