Study Guides - Cherokee County Schools

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Name Date Class 2 20 Transferring Thermal Energy Transferring Thermal Energy Chapter 6 Directions: Determine whether the italicized term makes each statement true or false. If the statement is true, write true in the blank. If the statement is false, write in the blank the term that makes the statement true. 1. Materials that are poor conductors are poor insulators. 2. The transfer of energy through matter by direct contact of its particles is convection. 3. The transfer of energy in the form of invisible waves is conduction. 4. Solids usually conduct heat better than liquids and gases. 5. The R-value of insulation indicates its resistance to heat flow. 6. Air is a poor heat conductor. 7. Wind and ocean currents are examples of conduction currents. 8. Energy is usually transferred in fluids by radiation. 9. As water is heated, it expands, becomes less dense, and rises. 10. Dark-colored materials absorb less radiant energy than light-colored materials. 11. Only radiant energy that is reflected is changed to thermal energy. 12. The higher the R-value of insulation the less resistant it is to heat flow. Directions: Circle the object in each pair that will take in more heat. In the blank, explain why that object will take in more heat. 13. a silver spoon a wooden log 14. a white shirt a red shirt 15. foil in the sunlight a sidewalk in the sunlight 16. single-pane window double-pane window 17. R-5 insulation R-35 insulation <strong>Study</strong> Guide Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc.
Copyright © Glencoe/McGraw-Hill, a division of the McGraw-Hill Companies, Inc. Name Date Class 3 <strong>Study</strong> Guide Using Heat Directions: Answer the following questions about the heating system represented in the flowchart. A. Furnace heats water to a boil. B. Steam provided by boiling water travels through pipes to a radiator. C. Steam cools inside radiator and condenses to water. D. Thermal energy of heated radiator heats air in room. 1. Is the system in the flowchart a hot-water system or a steam-heating system? 2. How does the furnace get the energy needed to heat the water? 3. Is the furnace an internal or external combustion engine? 4. How is the thermal energy produced by the furnace transferred to the water? 5. Why do the pipes carrying the steam to the radiator need to be insulated? 6. How is the thermal energy from the steam transferred to the radiator? 7. How is the thermal energy of the radiator transferred to the surrounding air? 8. What happens to the steam as it gives up thermal energy inside the radiator? Chapter 6 9. How is heat from the air surrounding the radiator transferred to the air in the rest of the room? Using Heat 21
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Study Guides - Cherokee County Schools

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