Heat transfer-Conduction Convection Radiation

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What is heat transfer?

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Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

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NGSS.MS-PS3-3

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What are the three main types of heat transfer?

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The three main types of heat transfer are conduction, convection, and radiation.

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NGSS.MS-PS3-3

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What is conduction?

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Conduction is the transfer of heat through direct contact between materials.

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NGSS.MS-PS3-3

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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) caused by differences in temperature and density.

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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, such as light or infrared radiation.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

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How does a microwave heat food?

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A microwave heats food through radiation, using electromagnetic waves to excite water molecules in the food.

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NGSS.MS-PS3-3

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What happens to warm air in a room?

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Warm air rises because it is less dense than cooler air, demonstrating convection.

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How does a pot get hot on a stove?

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A pot gets hot on a stove through conduction, as heat is transferred directly from the stove to the pot.

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What is an example of convection in everyday life?

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An example of convection is the warm air rising near a heater, causing cooler air to move in and create a circulation.

Tags

NGSS.MS-ESS2-6

Front

What is an example of conduction?

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An example of conduction is touching a hot metal spoon that has been in a pot of boiling water.

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NGSS.MS-PS3-3