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Physics
9th -
12thgrade
G Kinetic and Potential Energy Practice
25 questions
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- 1. Multiple Choice
If you serve a volleyball with a mass of 2.1 kg and the ball leaves your hand with a speed of 30 m/s. This ball has ________ Energy. Calculate it.
Kinetic ,945 J
Potential, 945
Kinetic, 618 J
Potential, 618 J
- 2. Multiple Choice
A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. The car has _______ energy.
Kinetic, 896000 J
Potential, 896000J
Kinetic, 439488 J
Potential, 439488 J
- 3. Multiple Choice
There is a bell at the top of a tower that is 45 m. The bell has a mass of 19 kg. The bell has _____ energy. Calculate it.
Potential, 8379 J
Kinetic, 8379 J
Potential, 855 J
Kinetic, 855 J
- 4. Multiple Choice
What is the _______ energy of a 3 kg ball that is rolling at 2 m/s?
Kinetic, 6 J
Potential, 6 J
Kinetic, 58.86 J
Potential, 58.86 J
- 5. Multiple Choice
Two objects were lifted by a machine. One object had a mass of 2 kg, and was lifted at a speed of 2 m/s. The other had a mass of 4 kg and was lifted at a rate of 3 m/s. Which object had more kinetic energy while it was being lifted?
4 kg object
2 kg object
- 6. Multiple Choice
Relative to the ground, what is the gravitational potential energy of a 55 kg person who is at the top of the Sears Tower,a height of 443 m above the ground?
238,777 J
2,4365 J
670,038 J
1,340,075 J
- 7. Multiple Choice
Suppose a 0.350 kg eagle picks up a 0.075 kg snake and raises it 2.5 m from the ground to a branch. How much work did the bird do on the snake?
1.8 J
2.8 J
8.1 J
8.2 J
- 8. Multiple Choice
Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
14567.9 J
20047.5 J
40095 J
10095 J
- 9. Multiple Choice
An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,600 J of potential energy.
1850 kg
18,130 kg
7,252,000 kg
37,000 kg
- 10. Multiple Choice
What distance is a book from the floor if the book contains 196 J of potential energy and has a mass of 5 kg?
4 m
6 m
8 m
20 m
- 11. Multiple Choice
What is the potential energy that a book is 4 m from the floor and has a mass of 5 kg?
196 J
98 J
49
24.5 J
- 12. Multiple Choice
What is the kinetic energy of a rock that has 55 kg if the rock rolls down the hill with a velocity of 8 m/s?
1760 J
11870 J
3520 J
5935 J
- 13. Multiple Choice
Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.
8,772,500 J
4,386,250 J
2,193,125 J
109,656 J
- 14. Multiple Choice
Find the mass of a car that is traveling at a velocity of 60 m/s North. The car has 5,040,000 J of kinetic energy.
2800 kg
1400 kg
168000 kg
16800 kg
- 15. Multiple Choice
How fast is a ball rolling if it contains 98 J of kinetic energy and has a mass of 4 kg?
7 m/s
14 m/s
49 m/s
24.5 m/s
- 16. Multiple Choice
A 10 kg mass is lifted to a height of 2 m. What is the energy at this position?
196.2 J
98.1 J
40 J
20 J
- 17. Multiple Choice
At what height is an object that has a mass of 16 kg, if its energy is 7500 J?
48 m
24 m
487 m
234 m
- 18. Multiple Choice
What is the energy acquired by a hammer with a mass of .75 kg when raised 0.35 m?
2.5 J
1.4 J
.1 J
.05 J
- 19. Multiple Choice
A book with a mass of 1 kg is dropped from a height of 3 m. What is the energy of the book when it reaches the floor?
30 J
15 J
7.5 J
3.25 J
- 20. Multiple Choice
At what height is an object that has a mass of 50 kg, if its energy is 9800 J?
20 m
20 J
10 m
10 J
- 21. Multiple Choice
What is the mass of an object if its energy is 3822 J and it is 15 m above the ground?
26 kg
26 J
13 J
13 kg
- 22. Multiple Choice
An object with a mass of 20 kg and potential energy of 584 J is what distance above the ground?
3 m
3 J
1.5 m
1.5 J
- 23. Multiple Choice
What is the energy of an object that has a speed of 18 m/s and a mass of 5 kg?
810 J
1620 J
2240 J
4480J
- 24. Multiple Choice
A book that has a mass of 1kg is tossed at 3 m/s . What is the energy the book has at that moment?
4.5 J
9 J
18 J
22.5 J
- 25. Multiple Choice
What is the energy of an object if it has a mass of 30 kg and is thrown at 15 m/s?
3375 J
6750 J
13500 J
2700 J
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