1.4 GPE

Question 1

What happens to GPE stores of an object when it moves up

Answer 1

gravitational potential energy store increases. Increase is equal to work done because the lifting force overcomes the gravitational force on the object

Question 2

What happens to GPE stores of an object when it moves down

Answer 2

Energy in its gravitational potential energy store decreases. Decrease is equal to work done by the gravitational force acting on it

Question 3

What does work done on an object moving up or down depend on

Answer 3

It’s change if height
It’s weight

Question 4

Why is it easier to lift and object on the moon than on the earth

Answer 4

The gravitational field strength on the moons surface is less ( a sixth ) than the earths surface