Air Pressure

Front

What is air pressure?

Back

Air pressure is the force exerted by the weight of air above a surface. It is measured in units like pascals (Pa) or millibars (mb).

Front

What happens to air pressure as altitude increases?

Back

As altitude increases, air pressure decreases because there is less air above to exert force.

Front

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

Back

Low air pressure is usually associated with cloudy weather and precipitation.

Front

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

Back

High air pressure is usually associated with clear skies and calm weather.

Front

What is a low-pressure system?

Back

A low-pressure system is an area where the atmospheric pressure is lower than that of the surrounding areas, often leading to stormy weather.

Front

What is a high-pressure system?

Back

A high-pressure system is an area where the atmospheric pressure is higher than that of the surrounding areas, often leading to clear and calm weather.

Front

How does air pressure affect wind?

Back

Air moves from areas of high pressure to areas of low pressure, creating wind.

Front

What is the relationship between air pressure and temperature?

Back

Generally, warm air is less dense and rises, leading to lower air pressure, while cool air is denser and sinks, leading to higher air pressure.

Front

What does a barometer measure?

Back

A barometer measures air pressure.

Front

What weather conditions can occur when a low-pressure system moves into an area?

Back

When a low-pressure system moves in, it can bring rainy and windy conditions.