* Gravity: The force of attraction between two objects with mass is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
* Electrostatic force: The force of attraction or repulsion between two charged particles is proportional to the product of their charges and inversely proportional to the square of the distance between them.
* Light intensity: The intensity of light from a point source decreases as the square of the distance from the source.
Let me know if you'd like to learn more about any of these!
