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- 1. Multiple Choice
What is the capacity necessary to do work?
speed
joule
momentum
energy
- 2. Multiple Choice
energy of motion
kinetic energy
potential energy
movement
work
- 3. Multiple Choice
What is the standard international unit for energy?
newton
joule
kilogram
m/s/s
- 4. Multiple ChoiceEnergy due to motion is ____________ energy.PotentialEnergyKineticFriction
- 5. Multiple ChoiceThe faster an object moves, the ________ kinetic energy it has.morelessnone of the aboveall of the above
- 6. Multiple Choice
As mass increases, kinetic energy ...
increases
decreases
stays the same
- 7. Multiple Choice
Which has a greater impact on kinetic energy?
mass
velocity
- 8. Multiple ChoiceThe SI unit in which kinetic energy is measured isNewtonKilogramJoulesMetres per second
- 9. Multiple Choice
Rearrange the equation for kinetic energy to solve for mass.
m = KE/2v2
m = 2KE/v2
m = v2/2KE
m = 2v2/KE
- 10. Multiple ChoiceRearrange the equation for kinetic energy to make velocity squared the subject of the equation.v2 = KE/2mv2 = 2m/KEv2 = 1/2 KE mv2 = 2KE/m
- 11. Multiple Choice
Rearrange the equation for kinetic energy solve for velocity.
v = √(2KE/m)
v2 = 2KE/m
v = √(m/2KE)
v = √(KE/2m)
- 12. Multiple Choice
Calculate the kinetic energy of a moving 4.0 kg object travelling at a velocity of 3.0 m/s.
18 J
36 J
12 J
6 J
- 13. Multiple Choice
How much kinetic energy does a moving 6.0 kg object have if it moves with a velocity of 3.0 m/s?
27 J
18 J
9 J
2 J
- 14. Multiple Choice
What is the kinetic energy of a 1500 gram object moving at a velocity of 100.0 m/s
112.5 J
7,500,000 J
75 J
7,500 J
- 15. Multiple Choice
A moving 10 kilogram object has 20 Joules of kinetic energy. What is its velocity?
2.0 m/s
4 m/s
200 m/s
10 m/s
- 16. Multiple Choice
What is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2.0 m/s?
50 kg
200 kg
25 kg
100 kg
- 17. Multiple ChoiceAn explosion of gas from a Hawaiian volcano blows a rock into the sky. the rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s200Kg20,000Kg10Kg200Kg
- 18. Multiple Choice
An 8.0 kg dog chases a cat. if the dog has 400J of kinetic energy. What is the speed of the dog?
10 m/s
5 m/s
1 m/s
100 m/s
- 19. Multiple Choice
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 J
2.26e4 J
15 J
4.52e4 J
- 20. Multiple ChoiceWhat would have the greatest kinetic energy?A car driving down a hill.A person running down a hill.A ball rolling down a hill.
- Answer choicesTagsAnswer choicesTags