Wind

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 the clouds.

• Differences in air temperature and pressure.

• The rotation of the earth.

Which term best describes how 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 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.

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.

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

• They both occur 10 km up in the atmosphere

• They both occur around the equator

• They are both influenced by mountain ranges