Atmosphere and Winds

How is wind named?

• by the direction toward which the wind is blowing

• by the direction from where the winds originate (come from)

• by the Department of Atmospheric Affairs

• by the amount of air pressure.

Which of the following is true of warm(er) air?

• It is more dense.

• It is heavier.

• It has more air pressure.

• It is lighter and less dense.

Which is true of cold air?

• It is lighter and more dense.

• It is more dense and sinks.

• It rises because it is less dense.

• It is less dense and has less air pressure.

How does wind move?

• from areas of low pressure to areas of high pressure

• from areas of high pressure to areas of low pressure

• from higher elevations to lower elevations

• from left to right

Which global wind belt is found at letter A?

• Polar Easterlies 
• Prevailing Westerlies 
• Tradewinds
• Doldrums 

What type of global wind is found at letter D?

• Doldrums
• Prevailing Westerlies 
• Polar Easterlies 
• Tradewinds 

According to the Coriolis Effect, which direction does the wind deflect objects in the Northern Hemisphere?

• to the right

• to the left

• towards the North Pole

• south

Wind is caused mainly by air pressure differences that result from...

• uneven heating of the Earth's atmosphere.

• absorption of ultraviolet radiation by land.

• radiation of heat from Earth's land masses.

• rotation of Earth on its axis.

From what source does the energy originate that eventually creates winds?

• the moon

• the sun

• the Earth's surface

• the rotation of the Earth

What causes global winds and convection in the atmosphere? 

• continental deflection
• the rotation of the Earth
• Moon's gravity
• unequal heating of the Earth by the sun