Chapter 6 Section 2 Quiz Review What is Heat?

1. The quantity of heat needed to raise the temperature of 1 kg of a substance by 1C a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 1

1. c. specific heat Answer

2. The total kinetic energy of a substance’s particles is……. a 2. The total kinetic energy of a substance’s particles is……. a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 2

h. thermal energy Answer

3. The energy transferred between objects at different temperatures is……….. a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 3

3. d. heat Answer

4. True or False: Convection currents result from temperature differences in liquids and gases.

4. TRUE Answer

5. A material that reduces or prevents the transfer of energy by heat is……… a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 5

4. b. thermal insulator Answer

6. Two substances with equal masses have temperatures of 55C 6. Two substances with equal masses have temperatures of 55C. If the specific heat of the first substance is three times greater than that of the second substance, how much more energy will the first substance have given up by heat when both substances have cooled to 25C? a. one-third as much energy b. three times as much energy c. 30 times as much energy d. 90 times as much energy 6

6. b. three times as much energy Answer

7. The transfer of energy by the circulation of a liquid or gas is…. a 7. The transfer of energy by the circulation of a liquid or gas is….. a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 7

7. f. convection Answer

8. True or False: Water stays warm or cool longer than land does because water has a lower specific heat than land does. 8

8. FALSE Answer

9. A material through which energy can be transferred by heat is……. a 9. A material through which energy can be transferred by heat is…….. a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 9

9. a. thermal conductor Answer

10. The transfer of energy as electromagnetic wave is…. a 10. The transfer of energy as electromagnetic wave is…. a. thermal conductor b. thermal insulator c. specific heat d. heat e. conduction f. convection g. radiation h. thermal energy 10

10. g. radiation Answer

11. The hot air that you see rising from the pavement on a hot summer day is an example of a. thermal conduction b. thermal insulation c. convection. d. radiation. 11

11. c. convection Answer

12. Two objects at different temperatures are in contact 12. Two objects at different temperatures are in contact. Which of the following happens to their thermal energy? a. Their thermal energies remain the same. b. Thermal energy passes from the cooler object to the warmer object. c. Thermal energy passes from the warmer object to the cooler object. d. Thermal energy passes back and forth equally between the two objects. 12

12 .c. Thermal energy passes from the warmer object to the cooler object. Answer

13. True or false: Heat is the transfer of energy between two objects with different temperatures.

13. TRUE Answer

14. True or False: Radiation is the means by which the energy from the sun is transferred to Earth.

14. TRUE Answer

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