* Velocity has both magnitude (speed) and direction.
* In uniform circular motion, the speed is constant, but the direction of motion is constantly changing.
Think of a car going around a roundabout at a constant speed. Even though the car's speed might be constant, its direction is changing every moment as it goes in a circle. This means its velocity is changing.
Key Points:
* Speed is constant in uniform circular motion.
* Direction is continuously changing in uniform circular motion.
* Therefore, velocity is changing because it depends on both speed and direction.
Important Note: Even though the velocity is changing, the object is accelerating. This acceleration is called centripetal acceleration and is directed towards the center of the circle.