Newton’s law of gravitation
Gravity Force Lab by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC-BY-4.0 (https://phet.colorado.edu)
The title of the Project: Newton’s law of gravitation
Purpose of the work:
- Check Newton’s law of gravitation.
Expected results:
- According to Newton’s law of gravitation the gravitational force is proportional to the masses of the bodies and inversely proportional to the distance squared.
Practical part
This is a little instruction on the virtual laboratory.

Virtual experiment.
Step 1. Choose scientific notation and constant size for convenience.

Step 2. Change the distance between the bodies. How do gravitational forces change?

Step 3. Change the mass of the first body. How do gravitational forces change?

Step 4. Change the mass of the second body. How do gravitational forces change? Make a conclusion.

Conclusion
According to Newton’s law of gravitation the gravitational force is proportional to the masses of the bodies and inversely proportional to the distance squared.
