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 as altitude increases?

Back

Air pressure decreases as altitude increases.

Front

What are high pressure systems associated with?

Back

High pressure systems are associated with fair weather.

Front

What are low pressure systems associated with?

Back

Low pressure systems are associated with cloudy and rainy weather.

Front

What is the relationship between temperature and air pressure?

Back

As temperature increases, air pressure typically decreases because warm air is less dense.

Front

What is a vacuum?

Back

A vacuum is a space where there is little to no air pressure.

Front

How does air pressure affect weather patterns?

Back

Air pressure influences wind patterns, precipitation, and temperature.

Front

What is the role of a thermometer?

Back

A thermometer measures temperature, which can affect air pressure.

Front

What is the effect of high air pressure on a can during a can crush demonstration?

Back

High air pressure outside the can crushes it when the pressure inside is reduced.