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Michigan Merit Exam: Energy 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 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!

Page 1

Question 1 1. 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 2 2. The aging of our bodies over time is an example of which of the following?

Question 3 3. Elastic potential energy is the energy an object has in it due to being what?

Question 4 4. Different types of energy can be categorized as either kinetic or potential.

Question 5 5. Why does it take more work to stop a fast car than a slow one?

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Question 6 6. If you double the force on an object but the distance remains the same, how much work is done on that object?

Question 7 7. What is a joule?

Question 8 8. Which of the following is the formula for elastic potential energy?

Question 9 9. If all of the objects have around the same mass, which of the following objects has the most gravitational potential energy?

Question 10 10. Why is Hooke's law important for finding elastic potential energy?

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Question 11 11. Which of the following is the best example of the Second Law of Thermodynamics?

Question 12 12. Consider a ball at the end of a string. If the ball is swinging back and forth, at what point in the swing would the ball have the most potential energy?

Question 13 13. 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 14 14. You lift a 3kg dumbbell from the ground until it is above your head, at a height of 1.5 meters. How much energy did you use in the process? (Assume that you're not a space alien, and your gym is on Earth.)

Question 15 15. Which does not constitute a change in energy?

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Question 16 16. Both the equations for Hooke's law, and elastic potential energy have a constant called the spring constant in them. What is the spring constant?

Question 17 17. Which of the following is NOT true about the work-energy theorem?

Question 18 18. To find the formula for elastic potential energy of a spring we need to know the spring constant and the displacement of the spring. What exactly do we mean by displacement of the spring?

Question 19 19. How do we know that gravitational potential energy exists?

Question 20 20. If a car is rolling naturally downhill without the engine running, what energy transfer is happening?

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Question 21 21. To which of the following variables is kinetic energy proportional?

Question 22 22. 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 23 23. Does the Law of Energy Conservation apply to machines?

Question 24 24. Energy passing from one place to another is called ______.

Question 25 25. 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?

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Question 26 26. Which best describes 'work?'

Question 27 27. Which best describes the work-energy theorem?

Question 28 28. What happens to the amount of usable energy in a system over time?

Question 29 29. Energy is ______.

Question 30 30. Why is potential energy called stored energy?

Michigan Merit Exam: Energy 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 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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