Wind on Earth

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
• the fact that its 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 the 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 the 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 eart; winds in the southern hemisphere are deflected west
• winds in the northern hemisphere are deflected left; einds in the southern hemisphere are deflected right 

If you wanted to find the jet steam, 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 streams in the northern and southern hemisphere 
• the North or South Pole 
• the area around the Mediterranean Sea 

How do jet streams influence the weather? 

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

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

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