define PE
an object can have PE because of its location ( where a force can act on it) or because of its structure
what are some examples of elastic potential energy
elastic band when stretched, a trampoline at its lowest point
explain when a tennis ball has elastic potential energy
when its compressed on a racket and is about to bounce back
what type of PE does food and petrol have
chemical
What is gravitational potential energy
an object that is raised above a reference point in a gravitational field has GPE. If the object falls it will accelerate and GPE will transform into KE.