Air Pressure, Global Winds, & Local Winds

___________is the result of the weight of a column of air pushing on an area.

• air pressure
• density
• volume
• none of the above

As you climb up a mountain what happens to the air pressure?

• decreases
• increases
• stays the same

What happens to the oxygen molecules as altitude increases?

• fewer molecules
• more molecules
• same amount of molecules
• nothing happens to the molecules

Convection takes place because

• warm air is more dense than humid air
• warm and cold air have the same density
• cold air is less dense than warm air
• cold air is more dense than warm air

Tags

NGSS.MS-ESS2-5

Winds are caused by differences in

• precipitation
• humidity
• air pressure
• turbulence

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

At the seashore late in the afternoon on a hot, sunny day, a person often feels a strong breeze coming in from the ocean.  Which of the following is the reason for the breeze?

• pounding waves generate air currents
• warm air over the ocean rushes in to replace the cool air that rises over land
• there are no clouds to block wind coming in
• heavy cool air over the ocean rushes in to replace warm air that rises over the land

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Global winds generally

• are unpredictable
• change directions day to day
• blow from specific directions over long distances

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The name of the global winds that move from west to east across the United States is called

• Trade Winds
• Prevailing Westerlies
• Polar Easterlies
• Doldrums

Tags

NGSS.MS-ESS2-6

At night, the denser cool air over the land moves in and replaces the less dense, warmer air that rises over the ocean. This is called

• sea breeze

• land breeze

• trade winds

Low pressure will usually bring what kind of weather?

• Sunny
• Calm
• Stormy

Tags

NGSS.MS-ESS2-5