8.10A Convection Currents

Front

What energy transfers between two parts of a fluid during convection currents?

Back

Heat

Front

What happens to air when it is heated?

Back

It becomes less dense.

Front

What process heats the air directly above the earth?

Back

Conduction

Front

In which direction does wind flow?

Back

From high pressure to low pressure.

Front

What happens to air when it moves into the upper atmosphere?

Back

It becomes cool and heavy.

Front

Define convection currents.

Back

Convection currents are the movement of fluid caused by the uneven distribution of heat, resulting in the transfer of heat energy.

Front

What is the role of density in convection currents?

Back

Density differences in fluids cause them to rise or sink, driving convection currents.

Front

How does temperature affect the density of air?

Back

As air temperature increases, its density decreases.

Front

What is the primary cause of wind?

Back

Wind is caused by differences in air pressure.

Front

Explain the process of conduction.

Back

Conduction is the transfer of heat through direct contact between materials.