Key

# KE And GPE Worksheet

After Eastern Lebanon County School District

Determine whether the objects in the following problems have KE or GPE. Choose the correct formula to find the answer:

KE = ½ m v^{2} OR GPE = G m h OR GPE = (weight) (height)

- You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s.

The ball has ____ Joules of _______ energy. - A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 N.

The carriage has ____ Joules of _______ energy. - A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg.

The car has ____ Joules of _______ energy. - A cinder block is sitting on a platform 20 m high. It weighs 79 N.

The block has ____ Joules of _______ energy. - There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N.

The bell has ____ Joules of _______ energy. - A roller coaster is at the top of a 72 m hill and weighs 966 N.

The coaster (at this moment) has ____ Joules of _______ energy.