Convection Currents Quizizz

Transfer of thermal energy caused by the rising of hotter less dense fluids and the sinking of cooler more dense fluids:

• convection

• conduction

• radiation

• density

Warm ocean currents generally come from

• The North Pole
• The South Pole
• The Equator
• Both A and B

________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel

• gravity and the Coriolis Effect

• temperature and salinity

• wind and climate

• temperature and the Coriolis Effect

What does air do as it is heated?

• Heated air rises.

• Heated air sinks.

Air that cools becomes ___

• less dense and rises.

• less dense and sinks.

• more dense and sinks.

• more dense and rises.

• A

• B

• C

• D

Answer explanation

Warm air rise and cool air sinks

warm air is less dense

cool air is more dense so it sinks

Convection currents occur when ______________________ energy transfers between a fluid.

• potential

• kinetic

• thermal/heat

• electric

Heat flow (convection current) in the ocean and the atmosphere is...

• cool flows down - warm flows up

• cool flows up - warm flows down

• cool flows up - warm flows up

• cool flows down - warm flows down

Convection currents occur in...

• fluids

• solids

______________is created by unequal heating of the Earth's surface.

• conduction

• radiation

• wind

• river movement