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4 Cards in this Set
- Front
- Back
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Explain that convection currents is the movement of particles in fluids. |
The liquid or gas in hot areas is less dense than the those in cold areas, so it rises into the cold areas. The denser cold liquid or gas falls into the warm areas. The cold gases/liquids heat to the temperature of the hot areas. |
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Explain how convection currents can carry energy in fluids. |
Liquids and gases are fluids, energy is carried by the free electrons as the atoms heat up. |
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Give examples of where convection currents occur. |
In hot water tanks in homes, radiators. |
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Describe the process of convection in terms of particles movement in liquids and gases and explain why convection cannot happen in solids. |
Convection only occurs in fluids (liquid and gases) and the free electrons have lots of kinetic energy once heated and broken free from the atom. This allows them to move around and with that energy, heat up the other particles. |
