Here's why:
* Centripetal means "center-seeking".
* This force always points towards the center of the circle, constantly changing the object's direction without changing its speed.
* Without centripetal force, an object in motion would travel in a straight line, according to Newton's First Law of Motion.
Examples of centripetal force:
* Gravity: The force that keeps the Moon orbiting the Earth and the planets orbiting the Sun.
* Tension in a string: When you swing a ball on a string, the tension in the string provides the centripetal force.
* Friction: A car turning a corner experiences friction between its tires and the road, providing the centripetal force.