1.4 GPE Flashcards
1
Q
What happens to GPE stores of an object when it moves up
A
gravitational potential energy store increases. Increase is equal to work done because the lifting force overcomes the gravitational force on the object
2
Q
What happens to GPE stores of an object when it moves down
A
Energy in its gravitational potential energy store decreases. Decrease is equal to work done by the gravitational force acting on it
3
Q
What does work done on an object moving up or down depend on
A
It’s change if height
It’s weight
4
Q
Why is it easier to lift and object on the moon than on the earth
A
The gravitational field strength on the moons surface is less ( a sixth ) than the earths surface
