Mechanics
Circular Motion & Gravitation
Going in circles: centripetal force and orbits
3 skills · Last skill is Premium
Circular motion and gravitation link period, speed and centripetal force, then apply the inverse square law to surface gravity and orbits.
Skills in this topic
Uniform Circular Motion
Link period, frequency and speed on a circle, and find centripetal acceleration
Centripetal Force
Find the force that holds an object on a circular path, from tension to friction
Gravitation
Use the inverse square law for surface gravity, orbital speed and orbital period
Exam paths that include this topic
Start with Kinematics
Download Physics Zen and practice the complete free Kinematics topic. Upgrade only when you want the full curriculum and exam paths.