Winds and Ocean Currents

What causes warm air to rise? 

• The fact that it's less dense than cold air
• The fact that it weighs more than cold air
• The fact that it has higher pressure than cold air
• The fact that it's more dense than cold air

What causes wind to blow?

• Differences in longitude
• Shock waves from clouds
• Differences in air temperature and pressure
• The rotation of earth

Which term best describes how the earth's atmosphere is heated?

• spirally
• unevenly
• circularly
• kinetically

What can you conclude about prevailing winds from their name?

• They blow from west to east
• They blow all the time
• The air they contain is very warm
• The air they contain is very cool

What creates the air pressure difference between the equator and the poles? 

• The length of the seasons
• The shape of the earth
• The duration of the solar year
• The amount of direct sunlight each area receives

How are winds in the northern hemisphere different from winds in the southern hemisphere? 

• Winds in the northern hemisphere are deflected right; winds in the southern hemisphere are deflected left
• Winds in the northern hemisphere are deflected south; winds in the southern hemisphere are deflected north
• Winds in the northern hemisphere are deflected east; winds in the southern hemisphere are deflected west
• Winds in the northern hemisphere are deflected left; winds in the southern hemisphere are deflected right

How do jets streams influence the weather?

• By creating clouds
• By increasing moisture in the atmosphere
• By moving weather from one area to another very quickly
• By drying out the atmosphere

If you wanted to find the jet stream, where would you go? 

• The area around the poles
• The area around the equator
• 10 km above the earth's surface
• 1 km above the earth's surface

If you wanted to visit an area with very little wind, where might you go? 

• The doldrums around the equator
• The jet stream in the northern hemisphere
• The North or South Pole
• The area around the Mediterranean Sea

What do the Santa Ana winds and the Fohn have in common? 

• They both occur in areas of high pressure
• They both occur 10 km up in the atmosphere
• They both occur around they equator
• They are both influenced by mountain ranges