Air Mass, Pressure, Density

What is an air mass?

• The weight of the air about the ground
• A block of air that contains a consistent temperature and moisture level
• The amount of gas in a block of air
• The mass of a block of air

An air mass is defined by what characteristics?

• Temperature and Wind Patterns
• Wind Pattern and Moisture Content
• Moisture Content and Temperature
• Wind Pattern, Temperature, and Moisture Content

What is the source region of an air mass?

• The region where air masses meet
• The region where an air mass originates
• The region where weather changes
• The region there is high pressure next to low pressure

Air pressure is

• the force that air molecules push up from the surface.
• not present at the equator.
• the force that air molecules push down on a surface.
• not present at sea level

Where is the air pressure the highest?

• at A.
• at B.
• at C.
• at D.

Where is the air pressure lowest?

• Point A
• Point B
• Point C
• Sea Level

If a block has a density of 1 g/cm3, in which liquid(s) would it sink?

• Red
• Blue
• Green
• Yellow