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Cards In This Set
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What is a cyclone?
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A low pressure system that has air spiraling into the center.
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What is the frictional force?
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The force that causes air to slow down because it is in contact with an object.
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What is the Coriolis force?
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The force that turns air from its initial path of motion caused by the rotating Earth.
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What is the pressure gradient force?
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The force that sets air in motion due to differences in atmospheric pressure.
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Atmospheric pressure can be thought of as the ___________?
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Weight of the air molecules above a given location.
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The instrument used to measure atmospheric pressure is called a(n)
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Barometer.
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The Coriolis force deflects a freely moving object to the ________ in the Northern Hemisphere and to the ________ in the Southern Hemisphere.
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Right; Left
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The pressure gradient force is directed from higher to lower pressure where?
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Everywhere.
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What is the jetstream?
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A narrow zone of strong winds encircling the Earth.
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What is wind?
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The movement of air relative to the Earth's rotating surface.
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What are isobars?
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Lines of equal pressure.
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What are isotherms?
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Lines of equal temperature.
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What is the approximate standard sea level pressure?
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1013 millibars.
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Which is the convention for the identification of wind direction?
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The direction from which the wind is blowing.
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The amount of deflection caused by the Coriolis force depends on what?
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The speed and the latitude of an object.
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