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Force, Work, Energy & Power 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. How much power is required to do 100 J of work in 10 s?

Question 2 2. To do twice as much work in the same amount of time, how much power is required?

Question 3 3. Which of the following correctly describes conservation of energy?

Question 4 4. Work is done when you _______.

Question 5 5. Which is NOT a benefit of solar power?

Page 2

Question 6 6. Hydroelectric dams

Question 7 7. Which of the following is NOT true about the work-energy theorem?

Question 8 8. Which does not constitute a change in energy?

Question 9 9. The mass in the scenario is 10 kg. What is the normal force provided by the surface, which is angled at Θ = 60°?

Question 10 10. Which equation is used to determine the normal force in any situation?

Page 3

Question 11 11. There are three classes of levers. What are the positions on a lever we look at to determine its class?

Question 12 12. How can we determine the mechanical advantage of a pulley system?

Question 13 13. What is energy in physics?

Question 14 14. Which of the following is NOT a type of energy?

Question 15 15. Which best describes work?

Page 4

Question 16 16. For a linearly decreasing force, the best way to find the area under the curve is

Question 17 17. Instead of mass (used in translational motion), what do we use in the equation for rotational kinetic energy instead?

Question 18 18. How do we know that rotating objects have kinetic energy?

Question 19 19. Which of the following is NOT a contact force?

Question 20 20. Which of the following is a fully described force?

Page 5

Question 21 21. A ball on a string in uniform circular motion has a velocity of 8 meters per second, a mass of 2 kilograms, and the radius of the circle is 0.5 meters. What is the centripetal force keeping the ball in the circle?

Question 22 22. Which of the following is a full definition of uniform circular motion?

Question 23 23. Contrast the way natural gas and oil are formed to the way coal is formed.

Question 24 24. Which of the following is a major disadvantage associated with burning fossil fuels?

Question 25 25. Unbalanced forces cause moving objects to change their _____.

Page 6

Question 26 26. Balanced forces cannot change an object's _____.

Question 27 27. Which best describes 'work?'

Question 28 28. Which is NOT a component of work done on an object?

Question 29 29. What is the standard unit of power?

Question 30 30. Which of the following is an example of energy transfer?

Force, Work, Energy & Power 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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