KE, PE, & Conservation of Energy

By Cristina Sanchez

Kinetic Energy & Potential Energy

Kinetic energy is energy IN MOTION. (Doing work)


Ex: Legs pumping bicycle pedals


Formula: KE= ½ mv²





Potential Energy

Potential energy is energy IS STORED. (Not doing work)


Ex: Any object NOT in motion.


Formula: PE=mgh


Conservation of Energy

Conservation of energy means energy is NEITHER created OR destroyed but ONLY changes forms.



Ex: When kicking a ball that is not in motion energy is transferred from the kicker's body to the ball, energy was not created nor destroyed, just transferred.