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18 Cards in this Set
- Front
- Back
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The right of the air molecules around us is called... |
Air pressure |
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Lower altitudes = |
Higher pressure |
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The results of horizontal differences in air pressure is... |
Wind |
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Areas of high pressure to areas of low pressure is when... |
Air flows |
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The larger the pressure... |
The stronger the wind |
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On a weather map, lines called ... connect areas of the same pressure |
Isobars |
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Closely spaced isobars = |
fast wind (steep pressure gradient) |
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Slows the wind, but does not change its direction |
Friction with Earth's surface |
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Air pressure is low at high altitudes where air is thinner, air pressure is high at low altitudes. This is called... |
Altitude (elevation) |
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Warm air weighs less (has lower pressure) than cool air because the molecules are spaced farther apart. This is called... |
Temperature |
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Humid air weighs less than dry air, so high humidity means low pressure; dry air means high pressure. This is called... |
Humidity |
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A low pressure center is a.k.a a... |
Cyclone |
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In the Northern Hemisphere, cyclonic winds blow ... and in toward the Low pressure. This is in... |
counter-clockwise |
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A high pressure center is a.k.a. a... |
Anticyclone |
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In the Northern Hemisphere, anticyclonic winds blow ... and out of the High Pressure. |
clockwise |
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Cooler air over the water has higher pressure, so the air moves from the sea towards the land. This is called a ... |
sea breeze |
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Air is still moving from high pressure to low pressure. This is called a... |
land breeze |
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During a temperature inversion, warm air sits on top of cool air, preventing ... Air does not mix and pollutants are trapped. |
convection |
