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What is conduction?

Back

Conduction is the transfer of heat through a material without the movement of the material itself, typically occurring in solids. It happens when two objects at different temperatures are in direct contact.

Tags

NGSS.MS-PS3-3

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense areas of a fluid rise and cooler, denser areas sink, creating a current.

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NGSS.MS-ESS2-6

Front

What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves, such as infrared radiation. It does not require a medium and can occur in a vacuum.

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

Front

How does heat transfer occur in conduction?

Back

In conduction, heat is transferred through collisions between neighboring atoms or molecules, allowing energy to pass from the hotter region to the cooler region.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What is an example of conduction?

Back

An example of conduction is an ice cube melting in a person's hand, where heat from the hand transfers to the ice.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What is an example of convection?

Back

An example of convection is the heating of air in a room, where warm air rises and cooler air moves down to take its place.

Front

What is an example of radiation?

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An example of radiation is feeling warmth from the sun on your skin, where heat is transferred through electromagnetic waves.

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What is the direction of heat flow in heat transfer?

Back

Heat always flows from the hotter substance to the colder substance.

Tags

NGSS.MS-PS1-4

Front

What role does density play in convection?

Back

In convection, warmer fluids are less dense and rise, while cooler fluids are denser and sink, creating a circulation pattern.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state reached when two objects in contact with each other reach the same temperature, resulting in no net heat transfer.

Tags

NGSS.HS-PS3-4