Angular velocity is a measure of how quickly an object rotates around a specific point or axis. It is defined as the angle through which an object rotates in a given time period, typically expressed in radians per second. For example, if a wheel makes a complete turn, it has rotated through an angle of 2π radians. In physics, angular velocity is important for understanding rotational motion. It helps describe the speed and direction of an object's rotation, which can be crucial in various applications, such as in mechanical engineering, astronomy, and robotics. By knowing the angular velocity, one can predict how far an object will rotate over time.