Gravitational potential Flashcards
1
Q
what is gravitational potential energy
A
the energy stored in an objects due to its position above the earths surface
2
Q
if we have a ball from the ground that we placed onto a shelf, what would the transferring of energy be
A
the ball is lifted off the ground and onto the shelf using the chemical energy stored in our muscles.
The ball is now on the shelf and has a store of gravitational potential energy
3
Q
what is the equation for gravitational potential energy
must remember
A
Ep = m x g x h
4
Q
a crane lifts a 75 kg mass a height of 8m. calculate the gravitational potential energy gained by the mass
(g= 9.8 N/kg).
A
Ep = 5880J
Ep= m x g x h
Ep=75kg x 9.8 x 8
Ep=5,880J
