Holt Physical Science Chapter 12: Work & Energy 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 yellow "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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Question 1 1. Which of the following is an example of kinetic mechanical energy?

Question 2 2. Which of the following is the best definition for energy?

Question 3 3.

Which of the following situations represents thermal energy being converted into another type of energy:

I. Boiling a pot of water

II. Starting an automobile engine

III. A windmill

Question 4 4. How much power is required to do 100 J of work in 10 s?

Question 5 5. How can we determine the mechanical advantage of a pulley system?

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Question 6 6. Based on the Law of Energy Conservation, which of the following would best maintain a machine's ability to do work without input of additional energy?

Question 7 7. Which of the following is an example of potential energy transformed into kinetic energy?

Question 8 8. Which of the following scenarios will most likely require MORE power?

Question 9 9. What type of energy transformation best describes the following situation: you jump off a diving board into a swimming pool?

Question 10 10. If you double the force on an object but the distance remains the same, how much work is done on that object?

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Question 11 11. An inclined plane can be viewed in 2D as a right angle trangle. The three sides of the inclined plane triangle are a length that travels horizontal to the ground, a height perpendicular to the ground, and a slope at some angle to the ground. Using two of these three sides, what is the equation for the mechanical advantage of an inclined plane?

Question 12 12. What is the standard unit of power?

Question 13 13. Does the Law of Energy Conservation apply to machines?

Question 14 14. How much work is done when you hold a 10 N object 10 m above the ground?

Question 15 15. Which of the following situations is an example of a direct nuclear energy transformation to another type of energy?

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Question 16 16. What is a joule?

Question 17 17. A 10 kg bowling ball is lifted from the ground to a height of 1 meter. Assuming the bowling alley is on Earth, how much gravitational potential energy does it now have?

Question 18 18. 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?

Question 19 19. Consider a bike coasting along a flat road. Which of the following accounts for the fact that the bike will eventually come to a stop?

Question 20 20. Which of the following is a common unit that is used to measure energy?

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Question 21 21.

Which of the following can be converted into thermal energy:

I Nuclear Energy

II Electrical Energy

III Mechanical Energy

Question 22 22. An energy audit involves _____.

Question 23 23.

What types of energy can mechanical energy be transformed into?

I. Electrical Energy

II. Thermal Energy

III. Nuclear Energy

Question 24 24. Which of the following is an example of mechanical energy?

Question 25 25. If all of the objects have around the same mass, which of the following objects has the most gravitational potential energy?

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Question 26 26. Which of the following types of energy does the sun use to heat up our atmosphere?

Question 27 27. To do twice as much work in the same amount of time, how much power is required?

Question 28 28. Consider a wood burning fireplace as a system in which the wood is completely burned into ash and soot. The mass and energy of the wood before burning would be equal to which of the following?

Question 29 29. Which of the following is an example of potential mechanical energy?

Question 30 30. Choose the description that is appropriate for energy conservation.

Holt Physical Science Chapter 12: Work & Energy 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 yellow "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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