heat transfer Flashcards

1
Q

law of conservation of energy

A

energy cannot be created or destroyed just transform (under normal conditions).

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2
Q

heat

A

thermal energy that flows due to a difference in temperature heat flows from hot to cold

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3
Q

heat transfer

A

a method by which heat flows conduction convection radiation

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4
Q

conduction

A

heat transfer within or between solid objects

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5
Q

convection

A

heat transfer into or out of fluids

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6
Q

radiation

A

heat transfer due to packets of energy called photons that can travel through many substances even empty space.

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7
Q

insulator

A

a material through which energy (electrical thermal or sound) cannot be easily transferred.

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8
Q

conductor

A

a material through which energy (electrical thermal or sound) can be transferred.

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9
Q

temperature

A

the measure of the average speed of all particles

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10
Q

thermal energy

A

the total energy of all particles in an object

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