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| 1 . |
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Atmospheric pressure is measured with __________.
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| 2 . |
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The spacing of isobars on a surface weather map indicates the strength of _________.
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| 3 . |
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Everything else being equal, the greater the pressure gradient force, the greater the ________.
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| 4 . |
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The vertical pressure gradient force and the force of gravity are normally of nearly equal value and operate in opposite directions. This situation is called __________.
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| 5 . |
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The Coriolis force is ______ at the equator.
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| 6 . |
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The Coriolis force acting on any moving object ________ the object’s speed.
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| 7 . |
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Wind speeds are measured with _________ that have rotating cups mounted on a moving shaft.
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| 8 . |
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An elongated zone of high pressure is called a _________.
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| 9 . |
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Air spirals in a ____________ direction into surface cyclones in the Northern Hemisphere.
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| 10 . |
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The wind rotates in a __________ direction around anticyclones in the Southern Hemisphere.
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| 11 . |
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Friction slows the wind at the surface, so that the Coriolis force is less than the pressure gradient force. As a result, the air flows ________ of the pressure gradient force in the Northern Hemisphere.
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| 12 . |
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As a result of the pressure gradient force balancing the Coriolis force, _________.
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| 13 . |
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Surface air pressure is actually ________.
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| 14 . |
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Subgeostrophic flow occurs in the upper atmosphere around ________ systems.
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| 15 . |
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According to the equation of motion, the acceleration of a mass of air is the sum of the accelerations of the pressure gradient, Coriolis force, and ________.
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| 16 . |
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Air above 1.5 km experiences negligible friction and is known as the __________.
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| 17 . |
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The three main forces that determine wind velocity are __________.
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| 18 . |
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The planetary boundary layer exists up to an altitude of approximately _____.
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| 19 . |
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The Coriolis force causes an apparent deflection of the wind _______ in the Southern Hemisphere.
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| 20 . |
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Sea level pressure is used instead of surface air pressure on weather maps because _________.
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Answer choices in this exercise are randomized and will appear in a different order each time the page is loaded.
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