Air Pressure and Isobars

Front

What is air pressure?

Back

Air pressure is the force exerted by the weight of air above a surface. It decreases with altitude.

Front

What type of weather is typically associated with low pressure areas?

Back

Low pressure areas are usually associated with cloudy and rainy weather.

Front

What type of weather is typically associated with high pressure areas?

Back

High pressure areas are usually associated with clear and sunny weather.

Front

What do isobars represent on a weather map?

Back

Isobars are lines that connect points of equal air pressure on a weather map.

Front

What does it indicate when isobar lines are close together?

Back

Close isobar lines indicate windy conditions.

Front

What does it mean if a weather map shows a low pressure area?

Back

It typically means that the area may experience precipitation and stormy weather.

Front

What does a high pressure area indicate about the weather?

Back

A high pressure area usually indicates fair and calm weather.

Front

How does altitude affect air pressure?

Back

Air pressure decreases as altitude increases because there is less air above a given surface.

Front

What is the relationship between air pressure and wind?

Back

Wind is caused by differences in air pressure; air moves from high pressure to low pressure.

Front

What is a common tool used to measure air pressure?

Back

A barometer is a common tool used to measure air pressure.