gravitational energy Flashcards
1
Q
what is gravitational energy
A
the energy an object possesses due to its height above the ground in a gravitational field
2
Q
what is the formula
A
Ep=mgh
3
Q
but must mass , acceleration , height be measured in
A
m= mass in kg
g= acceleration dueto gravity (9.8ms-2)
h=height above ground in meters (m)
4
Q
if an object is on the ground how many joules of Ep does it have
A
0J of Ep
h=0m
