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- 1. Multiple Choice
What energy is stored due to the height of an object above the ground?
mechanical energy
gravitational potential energy
kinetic energy
chemical energy
- 2. Multiple Choice
What is energy of motion?
chemical energy
kinetic energy
mechanical energy
potential energy
- 3. Multiple Choice
Which of these is an example of the conversion of kinetic energy into gravitational potential energy?
A person dropping a water balloon off a deck
A toy car rolling down a track
A baseball player running around the bases
A car driving up a hill
- 4. Multiple Choice
Which factors affect kinetic energy?
mass and speed
distance and speed
mass and distance
mass and height
- 5. Multiple Choice
A child is sitting at the top of a slide. As the child slides down the slide, the potential energy decreases. What happens to the potential energy?
It is lost as gravitational energy.
It is converted to kinetic energy.
It is destroyed as the child slides down the slide.
It is used to make the child slow down.
- 6. Multiple Choice
Which has the most gravitational potential energy?
A book on the floor
A book on your bed
A book on the bottom shelf in the classroom
A book on the top shelf of the school library
- 7. Multiple Choice
Look at the picture of the dogs. If these dogs were all running at the same speed, which of these statements would be correct?
The smallest dog would have the most kinetic energy because it is the dog with the least mass
All the dogs have the same kinetic energy because they are all moving at the same speed
The largest dog would have the greatest kinetic energy because its mass is greater than that of the other dogs
The biggest dog would have the greatest kinetic energy because it has the most potential energy
- 8. Multiple Choice
Which slingshot has the most elastic potential energy?
1
2
3
- 9. Multiple Choice
A group of students performed an experiment during which they measured the rebound height of three different types of balls dropped from specific heights. In all of the trials, the balls never rebounded to the original height they were dropped from. What is the most likely explanation for this result?
Energy was destroyed while each ball fell to the ground.
The experiment required more energy than was available.
Energy was produced and then used up at a faster rate.
Some energy was transformed into heat or sound.
- 10. Multiple Choice
Are the pictures showing examples of energy transfer or energy transformation?
Energy transfer
Energy transformation
- 11. Multiple Choice
Is the picture showing an example of energy transfer or energy transformation?
Energy transfer
Energy transformation
- 12. Multiple Choice
What factors affect potential energy?
distance and speed
mass and speed
mass and distance
mass and height
- 13. Multiple Choice
The formula for kinetic energy is KE = 0.5mv2
What is the kinetic energy of a 10kg ball rolling at 2m/s?
10 joules
20 joules
100 joules
200 joules
- 14. Multiple Choice
Which is an example of work?
Using all of your strength to try to lift a truck
A person holds a bundle of hay over his head for 30 minutes and gets tired.
Pushing your friend on a skateboard
A person sitting on a sled at the top of a snowy hill
- 15. Multiple Choice
In order for work to be done, two things need to happen. What are they?
a change of shape and height must occur
a change of shape and energy must occur
a force needs to be applied and the mass has to change
a force needs to be applied and an object has to move
- 16. Multiple Choice
Where is kinetic energy the greatest?
1
2
4
6
- 17. Multiple Choice
Where is potential energy the greatest?
1
2
4
6
- 18. Multiple Choice
What does the law of conservation of energy state?
energy is never created or destroyed, but it can be changed
energy is sometimes created and sometimes destroyed
energy is never created, but it can be destroyed
energy can sometimes be created, but never destroyed
- 19. Multiple Choice
The formula for gravitational potential energy is GPE = mgh, where g is 9.8m/s2
What is the gravitational potential energy of a 2kg ball dropped from a height of 10 meters?
196 joules
19.6 joules
1.96 joules
1,960 joules
- 20. Multiple Choice
What is mechanical energy?
Kinetic energy multiplied by potential energy
The energy a machine has
The kinetic energy divided by the potential energy
The sum of an object’s kinetic and potential energy
- 21. Multiple Choice
Describe the relationship between kinetic and potential energy in a closed system. (What happens to one if you change the other?)
As potential energy decreases,
kinetic energy increases
As potential energy decreases kinetic energy stays the same
As potential energy decreases kinetic energy decreases
There is no relationship between potential and kinetic energy
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