Heat Transfer

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What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials. For example, when a pot is placed on a hot stove, heat moves from the stove to the pot.

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids or gases). For example, warm air rising and cool air sinking creates a convection current.

Tags

NGSS.MS-ESS2-6

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves. For example, the heat from the sun reaches the Earth through radiation.

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How does heat transfer occur when you touch a hot object?

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Heat transfer occurs through conduction when you touch a hot object, as heat moves from the object to your skin.

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What is an example of convection in everyday life?

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An example of convection is when boiling water in a pot; the hot water rises to the top while cooler water sinks.

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What is an example of radiation in everyday life?

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An example of radiation is feeling warmth from a campfire or the sun without direct contact.

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What happens to the temperature of a substance during conduction?

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During conduction, the temperature of the hotter substance decreases while the cooler substance increases until they reach thermal equilibrium.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What is thermal equilibrium?

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Thermal equilibrium is the state in which two objects in contact no longer transfer heat, meaning they are at the same temperature.

Tags

NGSS.HS-PS3-4

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How does insulation work in terms of heat transfer?

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Insulation reduces heat transfer by conduction, convection, and radiation, keeping heat in or out of a space.

Tags

NGSS.MS-PS3-3

Front

What is an example of conduction in nature?

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An example of conduction in nature is when a lizard warms itself on a hot rock.