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14 Cards in this Set
- Front
- Back
The transfer of heat by moving fluids is called ____.
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convection
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The currents within a liquid caused by heated fluids rising and cooler fluids sinking are known as _______ currents.
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convection
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Name two examples of convection currents:
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1. heating a room in the winter
2. winds are convection currents |
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How does sea breezes work?
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The land heats faster than the sea, causing the breeze to move from the sea to land.
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How does land breezes work?
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The sea cools slower than the land, causing the breeze to move from land to sea.
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___ is one of the poorest conductors of heat.
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air
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____ is the transfer of heart through space in the form of electromagnetic waves.
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Radiation
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___ is much faster than conduction and convection.
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Radiation
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Why is an important difference of radiation from conduction and convection?
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Radiation heat can pass through an object without heating it. Ex: magnifying glass
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____ energy is radiant heat that is trapped within a container.
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Thermal energy
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Radiant heat is absorbed and radiated much more easily by _____-colored objects than by light -colored objects.
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dark-colored objects
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What is one of the most practical uses of the heat transfer concept?
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the Dewar flask (Sir James Dewar)
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Hot water heating systems warm a room by ______ currents.
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convection
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A ___ is a device which radiates heat.
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radiator
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