Convection Flashcards

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1
Q

Convection can occur in…

A

Liquids and gases

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2
Q

When air near a radiator is heated it will expand and become.. than the surrounding air

A

Less dense

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3
Q

Why is the cooling element of a fridge placed at the top

A

Because air at the top is warmest, and is cooled and it sinks

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4
Q

How do gliders stay up in the air without an engine

A

They use currents of rising warm air to circle upward and glide between thermals

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