inverse-square

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Resources

PhET: Gravity Force Lab
phet.colorado.edu

PhET: Gravity Force Lab

Visualize the gravitational force that two objects exert on each other. Adjust properties of the objects to see how changing the properties affects the gravitational attraction.

Resource
PhET: Coulomb's Law
phet.colorado.edu

PhET: Coulomb's Law

Visualize the electrostatic force that two charges exert on each other. Observe how changing the sign and magnitude of the charges and the distance between them affects the electrostatic force.

Resource
phet.colorado.edu