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Download Chapter 6 Lesson 2 Name_____________ Describe the three ways
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Transcript
Chapter 6 Lesson 2 Name_____________ 1. Describe the three ways thermal energy can be transferred. ________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 2. Why are materials that are good conductors of heat also poor insulators? _______ ______________________________________________________________ ______________________________________________________________ 3. How is heat transfer by radiation different from conduction and convection? ____ ______________________________________________________________ ______________________________________________________________ 4. 5. 6. 7. 8. 9. Figure 6-1 In Figure 6-1, thermal energy is transferred to the sunbather in room B primarily by ____________________. In Figure 6-1, most of the heat provided by the fireplace in room C goes up the chimney and is therefore transferred by ____________________. In Figure 6-1, the thermal energy of the iron in room D is transferred to the clothes by ____________________. In Figure 6-1, room A, the heat from the pot on the stove moves to the pot's handle by ____________________. How could insulating a home save money? _______________________________ ______________________________________________________________ ______________________________________________________________ While still at the races Flossie ordered an orange Julius. She was lucky enough that they had glass cups (good insulators) with a Cp of 664 (J/kg·C°) and a mass of .0032kg. When they filled her cup it was good and cold with a temp of 12 C° and after sitting the hot July sun it warmed to 24 C° before the day was over. What was its change in thermal energy? GIVEN ANSWER: WORK