Forces and Motion
Description:
"Explore the forces at work when pulling against a cart, and pushing a refrigerator, crate, or person. Create an applied force and see how it makes objects move. Change friction and see how it affects the motion of objects." |
https://phet.colorado.edu/en/simulation/forces-and-motion-basics
PhET Interactive Simulations
University of Colorado Boulder
https://phet.colorado.edu