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| 1.
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Thermal energy is the __________ of the particles in a material.
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| | A) | total energy |
| | B) | temperature |
| | C) | potential energy |
| | D) | average kinetic energy |
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| 2.
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Which of the following conducts heat most effectively?
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| | A) | gas |
| | B) | solid |
| | C) | plasma |
| | D) | liquid |
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| 3.
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__________ is a measure of the average kinetic energy of all the particles in an object.
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| | A) | Radiation |
| | B) | Temperature |
| | C) | Density |
| | D) | Conduction |
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| 4.
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Refrigerators use the process of __________ to remove heat from the interiors.
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| | A) | evaporation |
| | B) | compression |
| | C) | sublimation |
| | D) | combustion |
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| 5.
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The transfer of energy through matter by the direct contact of particles is called __________.
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| | A) | radiation |
| | B) | confluence |
| | C) | conduction |
| | D) | convection |
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| 6.
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Which of the following has an external combustion engine?
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| | A) | air conditioner |
| | B) | modern steam engine in a power station |
| | C) | gasoline engine in a car |
| | D) | early steam locomotive |
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| 7.
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Any material that flows is a __________.
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| | A) | liquid |
| | B) | gas |
| | C) | fluid |
| | D) | current |
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| 8.
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A(n) __________ is something that absorbs radiant energy from the Sun.
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| | A) | radiator |
| | B) | combustion engine |
| | C) | solar collector |
| | D) | heating coil |
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| 9.
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__________ is the transfer of energy in the form of electromagnetic waves.
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| | A) | Conduction |
| | B) | Radiation |
| | C) | Refraction |
| | D) | Convection |
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| 10.
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Which of the following heating systems utilizes fuel to heat a mass of surrounding air that is blown through a series of ducts?
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| | A) | forced air |
| | B) | electrical |
| | C) | solar |
| | D) | radiator |
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| 11.
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Heat engines convert __________ energy into __________ energy.
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| | A) | potential, kinetic |
| | B) | mechanical, thermal |
| | C) | kinetic, potential |
| | D) | thermal, mechanical |
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| 12.
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A(n) __________ is a material that does not allow heat to move through it easily.
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| | A) | insulator |
| | B) | fluid |
| | C) | current |
| | D) | conductor |
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| 13.
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Which of the following would be the best material to use for making tea kettles?
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| | A) | aluminum, specific heat 920 |
| | B) | graphite, specific heat 710 |
| | C) | copper, specific heat 380 |
| | D) | iron, specific heat 450 |
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| 14.
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All heating systems for homes require __________.
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| | A) | heat |
| | B) | fuel oil |
| | C) | energy |
| | D) | electricity |
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| 15.
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The opposite of evaporation is __________.
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| | A) | condensation |
| | B) | conduction |
| | C) | radiation |
| | D) | convection |
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| 16.
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__________ is the thermal energy that flows from a material with a higher temperature to one with a lower temperature.
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| | A) | Work |
| | B) | Kinetic energy |
| | C) | Heat |
| | D) | Potential energy |
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| 17.
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Which of the following is the result of convection?
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| | A) | snow melting in your hand |
| | B) | rainforests near the equator |
| | C) | Earth heated by the Sun |
| | D) | water boiling in a copper tea kettle |
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| 18.
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Which of the following would you expect to find in a home with passive solar heating?
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| | A) | ceiling heating coils |
| | B) | wall of large windows |
| | C) | central furnace |
| | D) | fan |
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| 19.
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The specific heat of a material is the amount of energy it takes to raise the temperature of __________ of the material __________.
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| | A) | 100 kg, 100 K |
| | B) | 1 kg, 1 K |
| | C) | 10 g, 10 K |
| | D) | 1 g, 1 Celsius |
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| 20.
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How much matter does the vacuum in a thermos bottle contain which prevents heat transfer?
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| | A) | It is half filled with matter. |
| | B) | It is one quarter filled with matter. |
| | C) | It is completely filled with matter. |
| | D) | almost none |
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