Convection
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Convection
- The transfer of thermal energy by moving particles in fluids
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As the particles of fluids (gases
and liquids) are heated, they move faster and expand; this expansion makes the
fluids less dense so they rise
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When warmer fluids rise, cooler
fluids move downwards; this creates a “convection current”
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The convection current continues
in a pot of soup because the warmer soup particles in a pot cool when they make
contact with the air and then sink. These particles are heated again once they
meet the bottom of the pot.
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Convection currents help heat your
home through your furnace heating system.
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