If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

To log in and use all the features of Khan Academy, please enable JavaScript in your browser.

Main content

Unit: Uniform circular motion and gravitation

0

Possible mastery points

About this unit

How does the spin cycle on your clothes dryer get most of the water out? What causes planets to orbit in a circular motion? The answer to these questions lies in the forces behind circular motion. Dive into a vortex of centripetal force, centripetal acceleration, and Newton's law of gravitation.

Uniform circular motion introduction

Learn

Practice

Circular motion basics: Angular velocity, period, and frequencyGet 3 of 4 questions to level up!

Centripetal acceleration

Learn

Practice

Predicting changes in centripetal accelerationGet 3 of 4 questions to level up!

Quiz 1

Level up on the above skills and collect up to 160 Mastery points

Centripetal forces

Learn

Practice

Identifying centripetal forcesGet 3 of 4 questions to level up!

Newton's law of gravitation

Learn

Practice

Gravitational field strengthGet 3 of 4 questions to level up!
Comparing gravitational and inertial massGet 3 of 4 questions to level up!

Quiz 2

Level up on the above skills and collect up to 240 Mastery points

Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 500 Mastery points!