EQ 1: Potential & Kinetic Energy Word
Problems
What is the gravitational potential energy of a 55 kg box that is 8.0
m above the ground?
A kite with a mass of 0.05 kg is caught on the roof of a house. The
house is 10 m high. What is the kite’s potential energy due to
gravity?
What is the gravitational potential energy of a girl who has a mass
of 40 kg and is standing on the edge of a diving board that is 5 m
above the ground?
A medicine ball has a mass of 5 kg and is thrown with a speed of 2
m/s. What is its kinetic energy?
An 18-kg bicycle carrying a 62-kg girl is traveling at a speed of 7
m/s. What is the kinetic energy of the girl and bicycle?
A 20-kg bicycle carrying a 50-kg girl is traveling at a speed of 8
m/s. What is the kinetic energy of the girl and bicycle?
A baseball with a mass of 0.15 kg leaves a pitcher’s hand traveling
40 m/s towards the batter. What is the baseball’s kinetic energy?
What is the kinetic energy of a girl who has a mass of 40 kg and a
velocity of 3 m/s?
A 90-kg ceiling light is suspended 4 m above the floor. What is its
gravitational potential energy?
A satellite falling to earth has a kinetic energy of 182.2 billion J and
a potential energy of 1.6 billion J. What is its mechanical energy?
A 70-kg boy is sitting 3 m from the ground in a tree. What is his
gravitational potential energy?
A ball has 100 J of potential energy when it is on a shelf. Explain
what happens to the potential energy and the kinetic energy as the
balls falls, and find the amount of kinetic energy the ball has at the
instant it hits the floor.