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Question

What are convection current? Give examples.


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Solution

Convection current:

  1. Convection currents are movements of fluid caused by a temperature or density difference within a material.
  2. Convection currents are only seen in gases and liquids because particles within a solid are fixed in place.
  3. Warm air rising toward a house's ceiling or attic is a simple example of convection currents.
  4. Warm air rises because it is less dense than cool air.
  5. A convection current is something like wind.
  6. Heat is emitted by the sun or reflected light, creating a temperature difference that causes the air to move.


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