What Is Convection Current

Air current close to a radiator. Diffusion of heat takes place in rigid solids but that is called heat conduction convection additionally may take place in soft solids or mixtures where solid particles can move past each other.

2 Convection Currents The Changing Earth

The process happens as the warm air is said to be less dense than that of the colder air.

What is convection current. Convection currents can be found in the boiling of liquid the heat of a campfire the weather and even the magma in the earth. Convection currents transfer heat from one place to another by mass motion of a fluid such as water air or molten rock. Natural convection results from the tendency of most fluids to expand when heated i e to become less dense and to rise as a result of the increased buoyancy.

The earth is made out of a number of different layers and though we live on the crust of the earth. Wind is an example of a convection current. Convection process by which heat is transferred by movement of a heated fluid such as air or water.

Warm air is less dense than cool air so it rises. Quick notes convection currents are formed by the difference in. The heat transfer function of convection currents drives the earth s ocean currents atmospheric weather and geology.

A simple example of convection currents is warm air rising toward the ceiling or attic of a house. Convection current definition is a stream of fluid propelled by thermal convection. Convection currents are present in the air a good example of convection current is the warm air that rises towards the ceiling in your house.

In the case of the earth convection currents refer to the motion of molten rock in the mantle as radioactive decay heats up magma causing it to rise and driving the global scale flow of magma. Convection cannot take place in most solids because neither bulk current flows nor significant diffusion of matter can take place. Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy.

Sunlight or reflected light radiates heat setting up a temperature difference that causes the air to move. Convection currents are the movement of fluid as a result of differential heating or convection. Circulation caused by this effect.

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