Potential Energy can be Elastic or Gravitational.

What is Gravitational Potential Energy?

Gravitational Potential Energy called "GPE" is a

measure of how far an object can fall. The higher up

it is, the further it can fall and the more GPE it has.

GPE also depends on the object's weight.

GPE = mass x gravity x height. GPE = m x g x h.

This equation is important!

For example, the GPE of a rock that has a mass of 75kg

and is raised to a height of 4·0 metres is

GPE = 75kg x 10 m/s2 x 4 m = 3000J.

Do not forget that F= 75kg x 10 m/s2 = 750 kg m/s2 = 750 N

GPE = 750 N x 4 m = 3000 N.m

Pero N.m = Joules.

GPE = 3000J.

When the object starts to fall, GPE is transferred into KE.

Types of Energy & the Law of Conservation of Energy

Physics