Question 1

The force that generates wind is:

Accepted Answer

A)  centrifugal force. 
B)  friction. 
C)  pressure gradient force. 
D)  gravity. 
E)  Coriolis force. 
A)  centrifugal force. 
B)  friction. 
C)  pressure gradient force. 
D)  gravity. 
E)  Coriolis force.

Question 2

The addition of water vapor will cause the density of air to:

Accepted Answer

A)  increase. 
B)  vary widely in a horizontal direction. 
C)  stay the same. 
D)  decrease. 
A)  increase. 
B)  vary widely in a horizontal direction. 
C)  stay the same. 
D)  decrease.

Question 3

You would expect vertical airflow in an anticyclone to result in:

Accepted Answer

A)  convergence aloft. 
B)  convergence at the surface. 
C)  clouds. 
D)  divergence aloft. 
A)  convergence aloft. 
B)  convergence at the surface. 
C)  clouds. 
D)  divergence aloft.

Question 4

The primary cause of wind is not atmospheric pressure but atmospheric pressure differences.

Accepted Answer

A) True 
 B)False

Question 5

When air moves from the ocean onto land:

Accepted Answer

A)  curved flow is initiated. 
B)  converging winds and ascending air result over the land. 
C)  the winds tend to increase their speed. 
D)  divergence and subsidence occur over the land. 
A)  curved flow is initiated. 
B)  converging winds and ascending air result over the land. 
C)  the winds tend to increase their speed. 
D)  divergence and subsidence occur over the land.

Question 6

Of the various elements of weather and climate, changes in air pressure are probably the most easily perceived by people.

Accepted Answer

A) True 
 B)False

Question 7

A wind rose is used to identify:

Accepted Answer

A)  prevailing wind direction. 
B)  locations with similar wind directions during a storm. 
C)  wind direction at a given moment. 
D)  the approximate degree of Coriolis deflection at a specific location. 
A)  prevailing wind direction. 
B)  locations with similar wind directions during a storm. 
C)  wind direction at a given moment. 
D)  the approximate degree of Coriolis deflection at a specific location.

Question 8

The Coriolis effect is important only for motions that:

Accepted Answer

A)  cover short distances. 
B)  do not involve a pressure gradient. 
C)  are near the earth's surface. 
D)  are slow. 
E)  cover long distances. 
A)  cover short distances. 
B)  do not involve a pressure gradient. 
C)  are near the earth's surface. 
D)  are slow. 
E)  cover long distances.

Question 9

The effect of friction on the wind directly and/or indirectly alters its:

Accepted Answer

A)  heat content. 
B)  speed and direction. 
C)  density. 
D)  viscosity. 
E)  speed only. 
A)  heat content. 
B)  speed and direction. 
C)  density. 
D)  viscosity. 
E)  speed only.

Question 10

Why is the 500- mb level chart important for forecasting?

Accepted Answer

A)  It helps determine surface temperatures. 
B)  It helps determine the appropriate rate of adiabatic cooling. 
C)  It demonstrates cloud cover. 
D)  The winds at the 500- mb level determine the direction of movement for weather systems. 
A)  It helps determine surface temperatures. 
B)  It helps determine the appropriate rate of adiabatic cooling. 
C)  It demonstrates cloud cover. 
D)  The winds at the 500- mb level determine the direction of movement for weather systems.

Question 11

At a given pressure value, the air density will be highest when the temperature is coldest.

Accepted Answer

A) True 
 B)False

Question 12

Cyclonic airflow is characterized by:

Accepted Answer

A)  convergence aloft and divergence at the surface. 
B)  divergence both at the surface and aloft. 
C)  convergence both at the surface and aloft. 
D)  divergence aloft and convergence at the surface. 
A)  convergence aloft and divergence at the surface. 
B)  divergence both at the surface and aloft. 
C)  convergence both at the surface and aloft. 
D)  divergence aloft and convergence at the surface.

Question 13

Anticyclonic flow is:

Accepted Answer

A)  associated with air converging at the surface. 
B)  associated with low pressure. 
C)  in the opposite direction of Earth's rotation. 
D)  associated with storms and rainy conditions. 
A)  associated with air converging at the surface. 
B)  associated with low pressure. 
C)  in the opposite direction of Earth's rotation. 
D)  associated with storms and rainy conditions.

Question 14

Why do surface winds cross the isobars at an angle toward lower pressure (instead of blowing parallel to the isobars)?

Accepted Answer

A)  Friction reduces the speed so Coriolis is weakened. 
B)  It results from divergence in the surface wind. 
C)  Pressure gradient becomes stronger near the surface. 
D)  Convergence of upper level winds causes this. 
E)  Coriolis strengthens by combining with friction. 
A)  Friction reduces the speed so Coriolis is weakened. 
B)  It results from divergence in the surface wind. 
C)  Pressure gradient becomes stronger near the surface. 
D)  Convergence of upper level winds causes this. 
E)  Coriolis strengthens by combining with friction.

Question 15

What is the average sea level pressure in the United States?

Accepted Answer

A)  1000.13 mb 
B)  766.00 mb 
C)  1013.25 mb 
D)  29.92 mb 
A)  1000.13 mb 
B)  766.00 mb 
C)  1013.25 mb 
D)  29.92 mb

Question 16

High air pressure zones are usually associated with:

Accepted Answer

A)  relatively dry conditions. 
B)  stormy weather. 
C)  ascending currents. 
D)  converging winds. 
A)  relatively dry conditions. 
B)  stormy weather. 
C)  ascending currents. 
D)  converging winds.

Question 17

Standard sea level atmospheric pressure in the U.S. is approximately 29.92 inches of mercury.

Accepted Answer

A) True 
 B)False

Question 18

In the southern hemisphere, anticyclonic winds flow:

Accepted Answer

A)  inward and clockwise. 
B)  outward and clockwise. 
C)  outward and counterclockwise. 
D)  inward and counterclockwise. 
A)  inward and clockwise. 
B)  outward and clockwise. 
C)  outward and counterclockwise. 
D)  inward and counterclockwise.

Question 19

The main cause of the sea breeze is the unequal heating of land and water.

Accepted Answer

A) True 
 B)False

Question 20

Stormy weather is more closely associated with anticyclones than with cyclones.

Accepted Answer

A) True 
 B)False

The force that generates wind is:

The addition of water vapor will cause the density of air to:

You would expect vertical airflow in an anticyclone to result in:

The primary cause of wind is not atmospheric pressure but atmospheric pressure differences.

When air moves from the ocean onto land:

Of the various elements of weather and climate, changes in air pressure are probably the most easily perceived by people.

A wind rose is used to identify:

The Coriolis effect is important only for motions that:

The effect of friction on the wind directly and/or indirectly alters its:

Why is the 500- mb level chart important for forecasting?

At a given pressure value, the air density will be highest when the temperature is coldest.

Cyclonic airflow is characterized by:

Anticyclonic flow is:

Why do surface winds cross the isobars at an angle toward lower pressure (instead of blowing parallel to the isobars)?

What is the average sea level pressure in the United States?

High air pressure zones are usually associated with:

Standard sea level atmospheric pressure in the U.S. is approximately 29.92 inches of mercury.

In the southern hemisphere, anticyclonic winds flow:

The main cause of the sea breeze is the unequal heating of land and water.

Stormy weather is more closely associated with anticyclones than with cyclones.

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

Forms of Condensation and Precipitation

Circulation of the Atmosphere

Air Masses

Weather Patterns

Thunderstorms and Tornadoes

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

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Exam 6: Air Pressure and Winds

The force that generates wind is:

The addition of water vapor will cause the density of air to:

You would expect vertical airflow in an anticyclone to result in:

The primary cause of wind is not atmospheric pressure but atmospheric pressure differences.

When air moves from the ocean onto land:

Of the various elements of weather and climate, changes in air pressure are probably the most easily perceived by people.

A wind rose is used to identify:

The Coriolis effect is important only for motions that:

The effect of friction on the wind directly and/or indirectly alters its:

Why is the 500- mb level chart important for forecasting?

At a given pressure value, the air density will be highest when the temperature is coldest.

Cyclonic airflow is characterized by:

Anticyclonic flow is:

Why do surface winds cross the isobars at an angle toward lower pressure (instead of blowing parallel to the isobars)?

What is the average sea level pressure in the United States?

High air pressure zones are usually associated with:

Standard sea level atmospheric pressure in the U.S. is approximately 29.92 inches of mercury.

In the southern hemisphere, anticyclonic winds flow:

The main cause of the sea breeze is the unequal heating of land and water.

Stormy weather is more closely associated with anticyclones than with cyclones.

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

Forms of Condensation and Precipitation

Circulation of the Atmosphere

Air Masses

Weather Patterns

Thunderstorms and Tornadoes

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters