WorksheetsPhysics Unit 9 Review: Energy
Total questions: 15
Worksheet time: 33mins
The sum of the kinetic and potential energy in a system is known as the system's _____________________ energy.
mechanical
chemical
thermal
combined
A solar power plant converts _____________ to ____________.
Electrical energy to solar energy
radiant energy to electrical energy
chemical energy to electrical energy
mechanical energy to thermal energy
Which object has elastic potential energy?
a hanging leaf
a burning coal
a rolling ball
a stretched bow
A 80.0-kg fireman slides down a 3.00-m pole by applying a frictional force of 400. N against the pole with his hands. If he slides from rest, how fast is he moving once he reaches the ground?
2.1 m/s
4.2 m/s
5.5 m/s
8.0 m/s
A 12 kg book is pushed from rest to a final velocity of 10 m/s. The book travels 6 m. How much force was the book pushed with?
600 N
100 N
200 N
1200 N
The law of Conservation of energy states that energy can be transformed from one form to another, but it cannot be _______ or ________
transformed, or created
divided or multiplied
radiated or conducted
created or destroyed
How much gravitational potential energy does a 100kg (220lb.) skydiver have if they jump from 4000 meters?
3920000 J
294 J
180000 J
1225 J
A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 J
728.5 J
45,167 J
22,583.5 J
At which point of the roller coaster is potential energy the greatest?
W
X
Y
Z
The coaster at B is at -
Maximum PE, Minimum KE
Minimum PE, Minimum KE
Minimum PE, Maximum KE
Maximum PE, Maximum KE
