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Name ______________________________ Class ___________________ Date __________________ Chapter 5 Review – Energy Resources USING KEY TERMS For each pair of terms, explain how the meanings of the terms differ. 1. potential energy and kinetic energy _______________________________________________________________ _______________________________________________________________ 2. mechanical energy and energy conversion _______________________________________________________________ _______________________________________________________________ 3. renewable resources and nonrenewable resources _______________________________________________________________ _______________________________________________________________ UNDERSTANDING KEY IDEAS Multiple Choice _____ 4. Kinetic energy depends on a. mass and volume. b. velocity and weight. c. weight and height. d. velocity and mass. _____ 5. Gravitational potential energy depends on a. mass and velocity. c. mass and weight. b. weight and height. d. height and distance. _____ 6. Which of the following types of energy is not a renewable resource? a. wind energy c. solar energy b. nuclear energy d. geothermal energy _____ 7. Which of the following sentences describes a conversion from chemical energy to thermal energy? a. Food is digested and used to regulate body temperature. b. Charcoal is burned in a barbecue pit. c. Coal is burned to produce steam. d. All of the above Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 41 Energy and Energy Resources Name ______________________________ Class ___________________ Date __________________ Short Answer 8. Name two forms of energy, and relate them to kinetic or potential energy. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 9. Give 3 examples of one form of energy being converted into another form of energy. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 10. How are fossil fuels formed? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ Math Skills 11. A box has 400 J of gravitational potential energy. a. How much work had to be done to give the box that energy? Show your work below. b. If the box weighs 100 N, how far above the ground is it? Show your work below. Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 42 Energy and Energy Resources Name ______________________________ Class ___________________ Date __________________ Chapter Review continued 12. Applying Concepts Describe what happens in terms of energy when you blow up a balloon and release it. _______________________________________________________________ _______________________________________________________________ 13. Predicting Consequences Imagine that the sun ran out of energy. What would happen to our energy resources on Earth? _______________________________________________________________ _______________________________________________________________ 14. Analyzing Processes Look at the image below. Beginning with the pole vaulter's breakfast, trace the energy conversions necessary for the event shown to take place. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ 15. Forming Hypotheses Imagine two cars, one of which is more efficient than the other. Suggest two possible reasons one car is more efficient. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 43 Energy and Energy Resources Name ______________________________ Class ___________________ Date __________________ INTERPRETING GRAPHICS Use the graphic below to answer the questions that follow. 16. What is the skier’s gravitational energy at point a? _______________________________________________________________ _______________________________________________________________ 17 . What is the skier’s gravitational potential energy at point b? _______________________________________________________________ _______________________________________________________________ 18. What is the skier’s kinetic energy at point B? (Hint: mechanical energy = potential energy + kinetic energy) _______________________________________________________________ _______________________________________________________________ Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor. Holt Science and Technology 44 Energy and Energy Resources