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.

Front

What instrument is used to measure air pressure?

Back

A barometer is used to measure air pressure.

Front

What happens to air pressure when altitude increases?

Back

Air pressure decreases as altitude increases.

Front

What type of weather is associated with high air pressure?

Back

High air pressure is usually associated with clear and sunny weather.

Front

What type of weather is associated with low air pressure?

Back

Low air pressure is usually associated with stormy and rainy weather.

Front

How do warm air molecules behave compared to cold air molecules?

Back

Warm air molecules move faster and are more spread out, while cold air molecules move slower and are closer together.

Front

What is a common effect of low air pressure on weather patterns?

Back

Low air pressure can lead to the formation of clouds and precipitation.

Front

What is the relationship between air pressure and wind?

Back

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

Front

What is a cyclone?

Back

A cyclone is a system of winds rotating inward to an area of low atmospheric pressure, often bringing stormy weather.

Front

What is an anticyclone?

Back

An anticyclone is a system of winds rotating outward from a high-pressure area, usually bringing clear weather.