Air Pressure

________is the instrument used to measure air pressure.

• barometer
• thermometer
• mercury
• watch

Low pressure will usually bring what kind of weather?

• Sunny
• Calm
• Stormy

Pressure is the effect of

• the weight of all the air above pressing down
• water vapor in the atmosphere
• greenhouse gases
• solar radiation

High pressure will usually bring what kind of weather?

• clear and dry
• cloudy and wet

Based on the information in the table, in which city will it most likely rain?

• City W
• City X
•  City Y
• City Z

Which weather condition will most likely occur when the atmospheric pressure in an area begins falling?

• dry
• cold
• rainy
• sunny

Which kind of weather change will occur with an increase in air pressure?

• cooler and dryer
• colder and rainier
• hotter and stormier
• warmer and moister

_______ pressure systems are characterized by fair weather.

• High
• Low

On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?

• stormy
• sunny
• snowy
• hot

Michael observes the air pressure daily. Over the last couple of days the air pressure has been dropping. What weather will Michael most likely observe as a result?

• increasingly clear skies and more wind
• increasingly clear skies and dry weather
• increasingly cloudy skies and possible storms