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- 1. Multiple Choice
Kinetic energy is energy that is (a)
stored
destroyed
created
moving
- 2. Multiple Choice
A 20 kg object is sitting on top of a table that is 1.3 m high. What type of energy does it have?
kinetic
potential
chemical
electrical
- 3. Multiple Choice
The diagram shows a ball swinging at the end of a string. At which point(s) would the ball have the greatest potential energy (PE)?
A and D
B and C
B
C
- 4. Multiple Choice
Which of the following have kinetic energy?
Cookie sitting on a plate
Truck racing down the street
Person on an afternoon run
Rubber band stretched and ready to be flung across the room
- 5. Multiple Choice
When calculating potential energy, the mass should be in which units?
grams
kilograms
milligrams
pounds
- 6. Multiple Choice
The diagram shows a ball swinging at the end of a string. At which point(s) would the ball have the greatest kinetic energy (KE)?
A and D
B and C
B
C
- 7. Multiple Choice
The diagram shows a ball swinging at the end of a string. At which point(s) would KE and PE be basically equal?
A and D
B and C
B
C
- 8. Multiple Choice
A 20 kg object is sitting on top of a table that is 5.0 m high. How much potential energy does it have?
980 J
980 W
540 J
490 J
490 W
- 9. Multiple Choice
Which of the following is the unit for power?
Joule (J)
watt
kilogram
m/s
- 10. Multiple Choice
A 4.0 Kg object is moving at 3 m/s. How much kinetic energy does it have?
18 W
6 J
9 J
18 J
6 W
- 11. Multiple Choice
The measurement unit for kinetic energy is the...
Joule (J)
watt
kilogram
m/s
- 12. Multiple Choice
The measurement unit for work is the...
Joule (J)
watt
kilogram
m/s
- 13. Multiple Choice
The measurement unit for velocity is the...
Joule (J)
watt
kilogram
m/s
- 14. Multiple Choice
Assume that a microwave oven does 24,000 J of work in 24 seconds. What is the power of the microwave?
1000 J
1000 W
1000 N
2000 W
- 15. Multiple Choice
A person having a mass of 51 Kg gets into an elevator. The elevator lifts the person 30 m in 10 seconds. Approximately how much work was done by the elevator?
15,000 J
10,000 J
5,000 J
20,000 J
- 16. Multiple Choice
A person having a mass of 65 Kg gets into an elevator. The elevator lifts the person 60 m in 10 seconds. Approximately how much power was done by the elevator?
1,900 W
1,600 W
2,200 W
2,400 W
- 17. Multiple Choice
What is the Total Mechanical Energy at point B?
500,000 J
400,000 J
200,000 J
50,000 J
- 18. Multiple Choice
What is the Kinetic Energy at point B?
500,000 J
400,000 J
300,000 J
50,000 J
- 19. Multiple Choice
A 20 Kg bowling ball is resting on a ledge and a student pushes it off so that it falls to the ground. If the ledge is 10 meters above the ground, what will be the velocity of the bowling ball just before it hits the ground?
14.0 m/s
19.8 m/s
196 m/s
392 m/s
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