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20 Cards in this Set
- Front
- Back
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a __ converts thermal energy into mechanical work?
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heat engine
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in which state does water have the lowest average kinetic energy?
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solid
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particles of a __ move fast enough to overcome some of the attraction between them?
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liquid
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a change of state is a __?
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physical change
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particles of a __ move fast enough to overcome nearly all the attraction between them?
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gas
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__ systems do NOT have moving parts?
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passive solar heating
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particles of a __ do not move fast enough to overcome the strong attraction between them, so they are held tightly together?
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solid
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in which state does water have the lowest average kinetic energy?
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solid
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if two substances have the same temperature, then __?
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the substances have the same average kinetic temperature
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which process is NOT a physical change?
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burning
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when one end of an iron nail is held in a flame, the energy is transmitted along the nail by __?
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conduction
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aluminum changes temperature more slowly than lead; therefore aluminum has a higher __ than lead?
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specific heat capacity
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thermal energy flows between objects that differ in __?
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temperature
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which of the following represents the greatest amount of energy?
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500 Cal
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the common temperature scale used by most americans today is the __?
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Fahrenheit scale
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a bimetallic strip in the thermostat uncoils because of __?
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thermal expansion
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the official SI temperature scale is the __?
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Kelvin scale
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the condensation of water is a __?
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change of state
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a tile floor feels colder on your bare feet than a wooden floor because the tile floor __?
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conducts more energy from your feet
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when water vapor condenses, __?
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surrounding air is warm
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