Circular motion refers to the movement of an object along a circular path. This can occur at a constant speed, known as uniform circular motion, or with changing speed, called non-uniform circular motion. In both cases, the object continuously changes direction, which means it is constantly accelerating, even if its speed remains the same. The force that keeps an object in circular motion is called centripetal force. This force acts towards the center of the circle, allowing objects like planets in orbit or cars on a curved track to maintain their circular paths. Understanding circular motion is essential in fields like physics and engineering.