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Work and 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!

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Question 1 1. To which of the following variables is kinetic energy proportional?

Question 2 2. What is the standard unit of power?

Question 3 3. What is the main type of friction that occurs when rubbing your hands together?

Question 4 4. Which is NOT a component of work done on an object?

Question 5 5. On a graph where force is on the y axis, and distance is on the x axis, a curve is applied to show the force and distance of a moved object. What does the area under the curve represent?

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Question 6 6. 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 7 7. Which of the following is a common unit that is used to measure energy?

Question 8 8. Which best describes potential energy?

Question 9 9. How much power is required to do 100 J of work in 10 s?

Question 10 10. Which best describes a variable force?

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Question 11 11. Which best describes the work-energy theorem?

Question 12 12. Which of the following is the best definition for energy?

Question 13 13.

A child drops a toy from a height of 3 feet, and it lands on the ground at a height of 0 feet. In which of the following three situations is the work done by the force of gravity different from the other two?

1) The child drops the toy while standing still.

2) The child drops the toy from a moving shopping cart.

3) The child drops the toy while standing still. The toy then bounces once up to a height of 2 feet and falls to the ground again.

Question 14 14. What does the law of conservation of energy state?

Question 15 15. 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?

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Question 16 16. A bike resting at the top of a hill would be an example of what type of energy?

Question 17 17. In which of the following cases would a moving object not experience drag?

Question 18 18. What exactly is a conservative force conserving?

Question 19 19. Which of the following scenarios will most likely require MORE power?

Question 20 20. What is a system?

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Question 21 21. For a linearly decreasing force, the best way to find the area under the curve is

Question 22 22. 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 23 23. Which of the following types of energy does the sun use to heat up our atmosphere?

Question 24 24. What happens to the energy in a system that is acted upon by a nonconservative force?

Question 25 25. Which of the following is the formula for elastic potential energy?

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Question 26 26. Different types of energy can be categorized as either kinetic or potential.

Question 27 27. 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 28 28. How much work is done when you hold a 10 N object 10 m above the ground?

Question 29 29. Why is potential energy called stored energy?

Question 30 30. Why would a system have less energy than it originally started with?

Work and 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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