Pressure and 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
• 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 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 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 

When heat rises cools then sinks 

• high pressure 
• convection current 
• low pressure 
• stratospheric pressure  

What is Convection?

• Convection is the transfer of energy as electromagnetic waves.

• Convection is the movement of matter due to differences in density.

• Convection is a belt of calm air and sea.

• Convection is the movement of air caused by differences in air pressure.

What is"the movement of air over short distances"?

• Westerlies

• Local Winds

• Trade Winds

• Polar Easterlies

What are doldrums?

• circular patterns caused by the rising and sinking of air; hot (less dense) air rises; cool (more dense) air sinks

• The movement of air created by warm air rising and flowing up the slope of a mountain.

• are regions of high pressue and gentle winds at about 30 degrees north and south latitude

• a frequently windless area near the Equator

What kind of breeze is this and when would it form?

• Land breeze - daytime
• Land breeze - nighttime
• Sea breeze - daytime
• Sea breeze - nighttime