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Chapter 6 Section 2 Quiz Review What is Heat?

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1 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

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Answer 1. c. specific heat

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2 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

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Answer

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3 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

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Answer 3. d. heat

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

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Answer 4. TRUE

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5 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

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Answer 4. b. thermal insulator

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6 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

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Answer 6. b. three times as much energy

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7 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

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Answer 7. f. convection

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

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Answer 8. FALSE

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9 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

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Answer 9. a. thermal conductor

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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

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Answer 10. g. radiation

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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.

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Answer 11. c. convection

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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.

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

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

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Answer 13. TRUE

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

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Answer 14. TRUE

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GOOD LUCK TOMORROW REVIEW GUIDE WILL BE POSTED TO THE CLASSROOM WEBSITE HAPPY STUDYING!

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