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 weather when a high pressure system is present?

Back

High pressure systems usually bring clear skies and calm weather, as they are associated with sinking air that prevents cloud formation.

Front

What happens to weather when a low pressure system is present?

Back

Low pressure systems are associated with cloudy skies and precipitation, as they allow air to rise and cool, forming clouds.

Front

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

Back

High air pressure is typically associated with clear and dry weather.

Front

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

Back

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

Front

How does air pressure affect wind?

Back

Wind is created by differences in air pressure. Air moves from areas of high pressure to areas of low pressure.

Front

What is a weather front?

Back

A weather front is a boundary between two different air masses, often leading to changes in weather.

Front

What is the relationship between air pressure and humidity?

Back

High pressure systems usually have lower humidity, while low pressure systems often have higher humidity.

Front

What does it mean when a weather report says 'high pressure system'?

Back

It means that the area is likely to experience clear skies and stable weather conditions.

Front

What does it mean when a weather report says 'low pressure system'?

Back

It means that the area is likely to experience cloudy skies and possible precipitation.