Energy Transfer and Thermal Properties P2

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Vocabulary flashcards on energy transfer, thermal properties, and radiation.

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13 Terms

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Thermal Conductivity

Indicates how quickly energy is transmitted through a material by thermal conduction.

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Thermal Insulator

A material with low thermal conductivity, leading to a lower rate of heat loss.

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Specific Heat Capacity

The energy needed to raise the temperature of 1 kg of a substance by 1 °C.

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Infrared Radiation

All objects emit and absorb it; hotter objects emit more. Good absorbers are also good emitters.

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Greenhouse Gases

Gases that trap infrared radiation, increasing Earth's temperature.

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Black Body

A theoretical object that absorbs 100% of radiation and is a perfect emitter.

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Absorb

To take in energy or radiation.

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Emit

To give out energy or radiation.

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Electromagnetic Spectrum

The range of all types of electromagnetic radiation.

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Thermal Energy Transfer

The transfer of heat due to differences in temperature.

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Convection

The movement within a fluid that results from differences in density caused by temperature variations.

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Conduction

The transfer of heat from one particle to another without the movement of the material itself.

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Radiation

The transfer of energy by electromagnetic waves