Kinetic and Potential Energy Worksheet 5

Determine whether the objects in the following problems have kinetic or potential energy. Then choose the correct formula to use. KE = OR PE = m x g x h g= 10 m/s2

1. A roller coaster is at the top of a 72 m hill and weighs 966 N. The coaster (at this moment) has energy. Calculate it.

2. What is the kinetic energy of a 3 kilogram ball that is rolling at 2 meters per second.

3. The potential energy of an apple is 6.00 J. The apple is 3.00 m high. What is the mass of the apple.

4. An object was lifted by a machine. It had a mass of 2 kg and was lifted at a speed of 2 m/s. What was its’ kinetic energy?