Air pressure and Wind

Front

What causes differences in air pressure?

Back

Unequal heating by the sun.

Front

What type of pressure systems are characterized by fair weather?

Back

High pressure systems.

Front

What does fewer molecules further apart mean for density?

Back

It means density is low.

Front

What is associated with heavier, sinking air?

Back

High pressure.

Front

What is wind?

Back

Movement of air due to pressure differences.

Front

What happens to air pressure as altitude increases?

Back

Air pressure decreases.

Front

What is the relationship between temperature and air pressure?

Back

As temperature increases, air pressure decreases.

Front

What is a low pressure system associated with?

Back

Cloudy and stormy weather.

Front

What is the main driving force behind wind?

Back

Differences in air pressure.

Front

What happens to air in a high pressure system?

Back

Air sinks and creates clear skies.