At the surface, anticyclones are associated with Question 2 There is no Coriolis

Question

At the surface, anticyclones are associated with

Question 2

There is no Coriolis force at the equator because

Question 3

Wind speed is measured with a(n)

Question 4

Adding water vapor to the air causes the air to become more dense.

Question 5

The height at which you would encounter a pressure of 500 mb is about

Question 6

Wind flows across isobars toward low pressure.

Question 7

The height of a column of mercury with a mass equal to the mass of a column of the atmosphere at sea level is

Question 8

A cyclone is

Question 9

Air Pressure in a sealed container can be increased by increasing the temperature.

Question 10

Anticyclones rotate

Question 11

The hydrostatic equation tells us that the vertical pressure gradient

Question 12

The equation of motion relates acceleration of air to

Question 13

A wind from the northeast has an azimuth of 45 degrees.

Question 14

The Coriolis force causes an increase in air speed.

Question 15

The Coriolis force

Question 16

The pressure gradient wind flows perpendicular to the pressure gradient.

Question 17

Horizontal pressure gradient is greater than the vertical pressure gradient.

Question 18

Air pressure always decreases as we move upward in the atmosphere.

Question 19

If the vertical pressure gradient force exceeds the force of gravity over a small area for a few hours, then hydrostatic equilibrium does not exist and the result is

Question 20

Geostrophic wind flow occurs only in the upper atmosphere, not near the Earth's surface, because

Explanation / Answer

Ans (1) Diverging air and cloudy weather.

Explanation - An anticyclone system has characteristics opposite to that of a cyclone. That is, an anticyclone's central air pressure is higher than that of its surroundings, and the airflow is counterclockwise in the Southern Hemisphere and clockwise in the Northern Hemisphere. Anticyclones are usually characterized by low-level divergence and subsiding air. The absence of fronts means winds may be very light. Consequently, high-pressure areas are often associated with settled, dry and bright conditions. In summer, anticyclonesbring dry, hot weather. In winter, clear skies may bring cold nights and frost.

(2) Air moves only in straight line near equator.

Explanation - The Coriolis effect is greatest at the poles and zero at theequator because of the earth's spherical shape. If the surface of the rotating object is flatter, the Corioliseffect will be noticed more.

(3) Ananemometer

Explanation - The speed of that wind can bemeasured using a tool called an anemometer.
(4) True

Explanation - Warmer air is less dense than colder air because its molecules contain more inherent energy and can push each other out of the way. Colder air has less inherent energy so it packs up more and thus is denser. But one thing that need to be remember The atmosphere becomes less dense as altitude increases because there is less weight on the air molecules,making them less compressed. The air at a low altitude is denser because it is pressed down by all of the weight of all the air molecules above it.

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