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WorksheetsUnit 4 - Energy
Total questions: 19
Worksheet time: 10mins
What is the SI unit for Energy?
Joules
Watts
Newtons
Meters
What is the SI unit for Work?
Joules
Watts
Newtons
Meters
If more force is applied, what happens to power?
Increase
Decrease
Stay the same
What is the SI unit for Power?
Joules
Watts
Newtons
Meters
Calculate the potential energy of a 10 kg mass 2 meters above the ground
9.8 J
20 J
196 J
200 J
What type of energy is always conserved?
Potential
Kinetic
Thermal
Total
Calculate the kinetic energy of a 5 kg bowling ball rolling at 20 m/s
100 J
1000 J
10000 J
980 J
Calculate the work done on a 5 kg box that is pushed for 20 m using a force of 150 N.
3000 J
15000 J
100 J
30 J
Work is done when
displacement is zero
force is perpendicular to displacement
force is zero
A force moves an object
If Mr Jones's truck is more powerful than Mr Smith's motorcycle, which statement is correct?
The truck takes longer to do work
The truck takes less time to do work
The motorcycle is better able to do work
The truck has less work to do
If velocity is quadrupled what happens to kinetic energy?
Quadrupled
Increases by a factor of 8
Increases by a factor of 12
Increases by a factor of 16
Mr. Creel pushes a box for 11 m using a force of 50 N. It takes him 20 s to move the box. How much power did he have?
550 J
27.5 w
550 w
27.5 J
What is the correct equation for Mechanical Energy?
ME = PE + KE
ME = PE - KE
ME = PE * KE
ME = PE/KE
Where does Potential energy equal Kinetic energy
2
3
4
5
Where does Potential energy = 0
1
2
3
4
Where does Kinetic Energy = 0
1
2
3
4
Where is Potential Energy greater than kinetic energy?
2
3
4
5
Where is Kinetic Energy greater than potential?
1
2
4
5
A 250 kg tiger is running towards a deer at 15 m/s. He starts to slow down, doing 14,000 J of work. What is the tiger's final kinetic energy?
28,125 J
14,125 J
42,125 J
14,000 J
