Air Pressure and Weather Systems

What is air pressure?

• The force exerted by the weight of air molecules in the Earth's atmosphere.

• The force exerted by the weight of air molecules in outer space.

• The force exerted by the weight of water molecules in the Earth's atmosphere.

• The force exerted by the weight of dust particles in the Earth's atmosphere.

Tags

NGSS.MS-ESS2-5

Which instrument is used to measure air pressure?

• hydrometer

• altimeter

• thermometer

• barometer

What unit is used to measure air pressure?

• second

• kilogram

• pascal

• meter

Sunny weather and clear skies is what kind of air pressure?

• Low air pressure

• High density

• High air pressure

• Low density

Tags

NGSS.MS-ESS2-5

Which type of pressure system is associated with clear skies and fair weather?

• low-pressure system

• high-pressure system (usually)

• hurricane system

• thunderstorm system

What type of weather is typically associated with a low pressure system?

• Unsettled weather conditions

• Dry and arid climate

• Stable and calm conditions

• Sunny and clear skies

Tags

NGSS.MS-ESS2-5

What is a major weather event for low air pressure?

• Rain

• Hail

• Snow

• All of the above

Tags

NGSS.MS-ESS2-5

What type of weather is often associated with a low pressure system in the Northern Hemisphere?

• Unsettled weather

• Stable weather

• Sunny weather

• Clear weather

Tags

NGSS.MS-ESS2-5

What is the main cause of high pressure systems?

• Rising of warm, dense air

• Movement of air masses

• Rotation of the Earth

• Sinking of cool, dense air

What is the main cause of low pressure systems?

• Upward movement of warm air and convergence of air masses

• Downward movement of cold air and divergence of air masses

• Upward movement of cold air and divergence of air masses

• Downward movement of warm air and convergence of air masses

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6