Centripetal force
ScienceDefinition
Centripetal force is the net force directed toward the center of a circular path that keeps an object moving in a circle. It is not a separate type of force but rather the result of other forces like gravity, tension, or friction acting inward.
Examples
- Gravity acts as centripetal force keeping the Moon in orbit around Earth
- Friction between tires and road provides centripetal force when a car turns a corner
- Tension in a string provides centripetal force when you swing a ball in a circle
Key Fact
Fc = mv²/r, where m is mass, v is speed, and r is radius of the circular path.
Study This Concept
Practice centripetal force with free review games in these units: