Uniform circular motion is the movement of an object in a circular path at a constant speed. The object's direction constantly changes, but its speed remains the same. This type of motion is characterized by a constant angular velocity and a constant radius from the center of the circle.

In physics, when a body moves in any circular path but of fixed radius and moves with constant value of speed, then the motion performed by such bodies are referred to as uniform circular motion. Examples of uniform circular motion are such as: a boy moving in circular ground with constant speed, the motion of atomic particles such as electrons in an atom in its orbit is also an example of uniform circular motion.