Circular motion is defined as a body's motion that follows a circular route around a fixed point.
Uniform circular motion refers to a type of circular motion in which the body moves in a circular direction with a constant/uniform speed. Because the body has a fixed centre position, it is always at the same distance from any known point.
If you have a ball linked to a string and move it in a circular motion, you can make two fascinating observations.
The ball's speed remains constant while it traces a circle around a fixed centre point.
The ball continues to move in the same direction, changing its direction on a regular basis. As such, one can opt to stay on a circular path, the ball must change its direction in a constant manner.
If a body moves uniformly along a circular path.
The body is travelling in a circular in a consistent manner, covering the same distance at all times.
That is to say, the pace will remain constant. As a result, the velocity changes but the speed remains constant.
Hence, a body moving uniformly along a circular path has a constant speed.