Thermal Equilibrium

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What is thermal equilibrium?

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Thermal equilibrium is the state in which two objects in contact with each other do not exchange heat, meaning they are at the same temperature.

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NGSS.MS-PS3-4

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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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What is conduction?

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Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

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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 infrared radiation, which can occur in a vacuum.

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What direction does heat flow?

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Heat always flows from hot to cold objects.

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What happens to air when it is heated?

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Warm air rises because it is less dense than cooler air, which sinks.

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NGSS.MS-PS1-4

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What is an example of conduction?

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An example of conduction is a metal spoon getting hot when placed in a pot of boiling water.

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What is an example of convection?

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An example of convection is the warm air rising from a heater and circulating around a room.

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NGSS.MS-ESS2-6

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What is an example of radiation?

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An example of radiation is feeling the warmth of the sun on your skin.

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What is the relationship between temperature and heat transfer?

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Heat transfers from an area of high temperature to an area of low temperature.

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