Work and Energy in Physics: Help and Review 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. To do twice as much work in the same amount of time, how much power is required?

Question 2 2. Which of the following is NOT true about the work-energy theorem?

Question 3 3. Which best describes the work-energy theorem?

Question 4 4. What is a joule?

Question 5 5. How much work is done when you hold a 10 N object 10 m above the ground?

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Question 6 6. Which of the following is not true concerning the Big Bang Theory?

Question 7 7. Like the force due to gravity, the work done by the elastic spring force only depends on two distances. Which of the following is one of those distances?

Question 8 8. What exactly is a conservative force conserving?

Question 9 9. What is a system?

Question 10 10. Which best describes a variable force?

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Question 11 11. Why would a system have less energy than it originally started with?

Question 12 12. For a linearly decreasing force, the best way to find the area under the curve is

Question 13 13. Which best describes work?

Question 14 14. Imagine a car stalled on the side of the road, and the driver is trying to push it. The car has not yet started to move. What type of friction is currently affecting the car?

Question 15 15. How much power is required to do 100 J of work in 10 s?

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Question 16 16. Which does not constitute a change in energy?

Question 17 17. Which best describes potential energy?

Question 18 18. To see the energy conserved by a conservative force, we need to look at the work done by that force. What is true about the work done by both the force due to gravity and the elastic spring force?

Question 19 19. Different types of energy can be categorized as either kinetic or potential.

Question 20 20. In which of the following cases would a moving object not experience drag?

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Question 21 21. What do we call a force when the work done by it does not rely on the route the object the force is applied to travels?

Question 22 22. A bike resting at the top of a hill would be an example of what type of energy?

Question 23 23. Why is potential energy called stored energy?

Question 24 24. To which of the following variables is kinetic energy proportional?

Question 25 25. What happens to the energy in a system that is acted upon by a nonconservative force?

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Question 26 26. Which of the following is an example of mechanical energy?

Question 27 27. What is the standard unit of power?

Question 28 28. Which best describes 'work?'

Question 29 29. If you double the force on an object but the distance remains the same, how much work is done on that object?

Question 30 30. In the absence of friction, how much energy would be lost as a rollercoaster car goes down the first of several 'hills'?

Work and Energy in Physics: Help and Review 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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