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Energy and Work in Physics Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. The work done on an object by an applied force is equal to _____.

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Question 2 2. One watt of power is used when _____ of work is done in _____.

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Question 3 3. Alexander, who weighs 180 pounds, lifts a 10 N box 15 m in the air. How much work did he do?

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Question 4 4. What does the equation force * distance calculate?

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Question 5 5. The ability to perform work is referred to as _____.

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Page 2

Question 6 6. What does the equation MA = s/h calculate?

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Question 7 7. A device that alters the magnitude and/or direction of a force is called a(n) _____.

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Question 8 8. Zelda is standing at the top of a ski slope and is preparing to start moving down. This is an example of _____.

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Question 9 9. In which of the following scenarios is kinetic energy NOT conserved?

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Question 10 10. What is the potential energy of a 750 g ball at the top of a building that is 20 m tall?

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Page 3

Question 11 11. What is the kinetic energy of a 2,500 kg truck going 22 m/s?

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Question 12 12. The amount of kinetic energy of an object is dependent upon the speed or velocity of the object AND the _____.

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Question 13 13. The formula 1/2(kx^2) calculates _____.

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Question 14 14. According to _____, energy cannot be created or destroyed, although it may appear to be lost as heat.

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Question 15 15. The equation 1/2 mass * velocity^2 is used to calculate _____.

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Page 4

Question 16 16. Which of the following is an example of potential energy and not kinetic energy?

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Question 17 17. Which best describes the work-energy theorem?

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Question 18 18. How much work is done when you hold a 10 N object 10 m above the ground?

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Question 19 19. What is a system?

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Question 20 20. Which of the following is an example of mechanical energy?

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Page 5

Question 21 21. A simple machine can alter the magnitude and/or direction of a force. What is an example of a simple machine that alters the direction but not the magnitude of a force?

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Question 22 22. Elastic potential energy is the energy an object has in it due to being what?

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Question 23 23. If a 20 kilogram object has 1440 Joules of kinetic energy, how fast is it moving?

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Question 24 24. Kinetic energy is commonly known as the energy of which one of the following?

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Question 25 25. How much power is required to do 100 J of work in 10 s?

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Page 6

Question 26 26. If a car is rolling naturally downhill without the engine running, what energy transfer is happening?

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Question 27 27. Different types of energy can be categorized as either kinetic or potential.

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Question 28 28. Which of the following is NOT true about the work-energy theorem?

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Question 29 29. Which best describes 'work?'

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Question 30 30. What does the law of conservation of energy state?

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Energy and Work in Physics Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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