Air Pressure

Front

What is air pressure?

Back

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

Tags

NGSS.MS-ESS2-5

Front

What instrument is used to measure air pressure?

Back

A barometer is used to measure air pressure.

Front

What does a low pressure system indicate on a weather map?

Back

A low pressure system often indicates cloudy skies and precipitation, such as rain.

Tags

NGSS.MS-ESS2-5

Front

What does a high pressure system indicate on a weather map?

Back

A high pressure system usually indicates clear skies and fair weather.

Tags

NGSS.MS-ESS2-5

Front

How does air pressure affect weather?

Back

Changes in air pressure can lead to different weather conditions; low pressure often brings storms, while high pressure brings clear weather.

Tags

NGSS.MS-ESS2-5

Front

What happens to air pressure as altitude increases?

Back

Air pressure decreases as altitude increases because there is less air above pressing down.

Front

What is the relationship between air pressure and temperature?

Back

Generally, warm air is less dense and exerts lower pressure than cold air, which is denser and exerts higher pressure.

Front

What role does humidity play in air pressure?

Back

Humidity can lower air pressure because water vapor is lighter than the nitrogen and oxygen it displaces.

Front

What weather conditions are associated with falling air pressure?

Back

Falling air pressure is often associated with stormy weather and precipitation.

Tags

NGSS.MS-ESS2-5

Front

What weather conditions are associated with rising air pressure?

Back

Rising air pressure is typically associated with clear skies and fair weather.

Tags

NGSS.MS-ESS2-5