Gravitational potential energy store- year 9 physics

what is gravitational potential energy?

the store of energy an object has relative to it position in a gravitational field

what happens when an object falls or gains height?

it changes its position relative to the Earth’s gravitational pull

what is weight dependent on?

Mass and gravitational field strength

what is weight measured in?

N

what is mass measured in

Kg

what is the equation for weight?

weight= mass x gravitational field strength

what happens when an object moves up or down?

when an object moves up or down the work done is dependent on the weight of the object (force) and the change in height (distance)

what is the equation for gravitational potential energy om other planets?

GPE= mass x gravitational field strength x change in height  

when asked the gravitational potential energy on another planet what number do you use?

9.81 N/Kg 

what is the equation for gravitational l field strength?

weight x change in height