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What is convection in physical science?

Updated: 8/10/2023
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12y ago

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Convection is when water warms and expands. As the heated water expands, it rises because when a substance is hotter, it is also less dense. When the hotter and lighter water rises and reaches its maximum height, it is the farthest away from its heat source. It is then cooled and becomes more dense, sinking back down towards it's original location. It is usually related to liquids.

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14y ago
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7y ago

Convection is heat transfer in a gas or liquid driven by density differences which cause circulation.

Warm liquids and gases are less dense than could liquids or gasses and the warm liquids or gases therefore rises buoyantly, causing circulating currents which distribute the heat from one place to another.

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15y ago

It is the cycle of heating, rising, cooling, and sinking.

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9y ago

Convection is the transfer of heat by the actual movement of the warmed matter and takes place only in liquids and in gases.

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13y ago

the transfer of heat by currents within a liquid or gas

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11y ago

the transfer of energy as heat through a material

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12y ago

convection is transfer of something when 2 things are placed adjacent to each other .

generally this term is used when we are describing heat transfer process.

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13y ago

cooler air sinks,pushing warmer air upwards. the result is a circulating current of air called convection current

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