* Velocity has both magnitude and direction. In uniform circular motion, the object's speed (magnitude of velocity) remains constant. However, the direction of the object's velocity is constantly changing as it moves in a circle.
* Changing direction means changing velocity. Since velocity includes both speed and direction, any change in either one means a change in velocity.
Think of it this way:
Imagine a car driving around a roundabout at a constant speed. While the car's speed remains the same, its direction is constantly changing as it circles the roundabout. This means the car's velocity is changing, even though its speed is constant.
Key takeaway: While an object in uniform circular motion has a constant speed, its velocity is constantly changing due to the continuous change in direction.
