convection Flashcards

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1
Q

what is convection?

A

convection is the transfer of heat through liquids and gases.

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2
Q

what do molecules do when heated?

A

molecules start to vibrate and move.

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3
Q

is warm liquids/gases less dense?

A

yes they are less dense and they rise

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4
Q

are cold liquids/gases more dense

A

yes they are and they sink

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