What is the name of the movement energy store?
Kinetic energy
What is the name of the energy store when objects are up high?
Gravitational potential energy
Can energy be created?
No, only stored or transferred
Friction is a force which transfers energy in what form?
Thermal (heat) energy
When a tennis ball is drop it transfers gravitational potential energy into which type of energy?
Kinetic
A roller coaster has 2500J of gravitational energy at the top of a loop. (assuming there is no friction) How much Kinetic energy does it have on the ground at the bottom of the loop?
2500J
A Bike and rider of mass 65 kg is travelling with a velocity of 2.3 m/s. How much kinetic energy is the biker and rider storing?
172 J
A runner of mass 55 kg is travelling with a velocity of 1.3 m/s. how much kinetic energy is the runner storing?
46 J
A horse of mass 102 kg is running at a velocity of 3.9 m/s. How much kinetic energy is the horse storing?
776 J
A roller coaster car with mass 55 kg is 23 m above the ground. How much gravitational energy is it storing? g = 9.8 N/kg
12397 J
A bungee jumper with mass 71 kg stands at the top of a bridge 42 m high. How much gravitational potential energy is the jumper storing? g = 9.8 N/kg
29224 J
A pen with mass 100g sits on a desk 1m above the ground. How much gravitational potential energy is the pen storing? g = 9.8 N/kg
0.98 J
An elastic band with a spring constant of 1.2 J/m is stretch 14 cm. How much elastic potential energy does it store?
0.01J
