Question 1

How does an aneroid barometer differ from a mercury barometer?

Accepted Answer

An aneroid barometer houses a small, fle...

Question 2

The surface pressures at the bases of warm and cold columns of air are equal. Air pressure in the warm column of air will ____ with increasing height ____ in the cold column.

Accepted Answer

A)  decrease; at the same rate as
B)  decrease; more slowly than
C)  increase; more rapidly than
D)  increase; more slowly than
E)  increase; at the same rate asF) All of the above
G) A) and C)

Question 3

The pressure announced on last night's television weather broadcast was 29.92. Explain how this was measured and give the units. Would this be considered an unusually large or low pressure value?

Accepted Answer

"29.92" stands for 29.92 inches of mercu...

Question 4

A ____________________ barometer uses a transducer to detect the change in pressure exerted by the atmosphere on a precisely engineered surface, and the change in pressure is then converted into an electrical signal.

Accepted Answer

The answer of A ____________________ barometer uses a transducer to...

Question 5

Winds blow slightly inward ____.

Accepted Answer

A)  around surface low pressure centers in the Northern Hemisphere only
B)  around surface low pressure centers in the Southern Hemisphere only
C)  at the poles in both hemispheres
D)  at the equatorE) A) and B)
F) A) and C)

Question 6

The wind around a surface low pressure center in the ____ blows clockwise and inward toward the center.

Accepted Answer

A)  Northern Hemisphere only
B)  Southern Hemisphere only
C)  Eastern Hemisphere only
D)  Western Hemisphere only
E)  None of these is correctF) B) and E)
G) A) and B)

Question 7

Station pressure and sea-level pressure can never be the same value.

Accepted Answer

A) True 
 B)False

Question 8

If you (in the Northern Hemisphere)stand with the wind aloft to your back, Buys Ballot's law states that lower pressure will be to your right and higher pressure to your left.

Accepted Answer

A) True 
 B)False

Question 9

On an isobaric surface, ____.

Accepted Answer

A)  altitude is constant
B)  temperature is constant
C)  pressure is constant
D)  precipitation is constant
E)  cloud coverage is constantF) All of the above
G) C) and D)

Question 10

In the Northern Hemisphere, assuming there is no wind, there is a pressure-gradient force directed ____.

Accepted Answer

A)  northward
B)  southward
C)  eastward
D)  westward
E)  upwardF) A) and B)
G) A) and C)

Question 11

Horizontal pressure variations cause air to move from areas of _____ pressure to areas of ____ pressure.

Accepted Answer

A)  high; low
B)  low; high
C)  low; low
D)  high; high
E)  high; higherF) B) and D)
G) None of the above

Question 12

The base value of an isobar is ____.

Accepted Answer

A)  1,000 mb
B)  100 mb
C)  8 mb
D)  4 mb
E)  2 mbF) B) and E)
G) A) and E)

Question 13

The unit of pressure designated by the International System (SI) of measurement is the ____.

Accepted Answer

A)  atmospheric pressure
B)  millibar
C)  bar
D)  torr
E)  pascalF) B) and C)
G) A) and D)

Question 14

An altimeter measures altitude but is calibrated to indicate pressure.

Accepted Answer

A) True 
 B)False

Question 15

On an upper-level chart cold air aloft is generally associated with ____________________ pressure.

Accepted Answer

The answer of On an upper-level chart cold air aloft...

Question 16

In the tropics, pressure rises and falls in a regular pattern twice a day, due to absorption of solar energy by ____.

Accepted Answer

A)  ozone in the upper atmosphere and water vapor in the lower atmosphere
B)  water vapor in the upper atmosphere and ozone in the lower atmosphere
C)  ozone and water vapor in the upper atmosphere
D)  ozone and water vapor in the lower atmosphere
E)  None of these is correct.F) B) and C)
G) All of the above

Question 17

The vertical pressure gradient force is directed ____________________.

Accepted Answer

The answer of The vertical pressure gradient force is directed...

Question 18

At sea level, standard atmospheric pressure is ____.

Accepted Answer

A)  1,000 mb
B)  10 mb
C)  1 kilobar
D)  1 hPa
E)  29.92 inches of mercuryF) A) and D)
G) A) and C)

Question 19

The amount of pressure change that occurs over a given horizontal distance is called the ____.

Accepted Answer

A)  pressure tendency
B)  Coriolis parameter
C)  pressure gradient
D)  potential gradient
E)  slopeF) C) and D)
G) A) and C)

Question 20

The unit of pressure most commonly found on a surface weather map is ____.

Accepted Answer

A)  inches of mercury
B)  millibars or hectopascals
C)  pounds per square inch
D)  atmospheres
E)  torrF) B) and C)
G) A) and B)

Exam 8: Air Pressure and Winds

The pressure announced on last night's television weather broadcast was 29.92. Explain how this was measured and give the units. Would this be considered an unusually large or low pressure value?

Correct Answerverified"29.92" stands for 29.92 inches of mercu...View AnswerShow Answer

On an isobaric surface, ____.

Correct AnswerverifiedShow Answer

An altimeter measures altitude but is calibrated to indicate pressure.

Correct AnswerverifiedShow Answer

The amount of pressure change that occurs over a given horizontal distance is called the ____.

Correct AnswerverifiedShow Answer

In the tropics, pressure rises and falls in a regular pattern twice a day, due to absorption of solar energy by ____.

Correct AnswerverifiedShow Answer

In the Northern Hemisphere, assuming there is no wind, there is a pressure-gradient force directed ____.

Correct AnswerverifiedShow Answer

On an upper-level chart cold air aloft is generally associated with ____________________ pressure.

Correct AnswerverifiedShow Answer

The base value of an isobar is ____.

Correct AnswerverifiedShow Answer

The vertical pressure gradient force is directed ____________________.

Correct AnswerverifiedShow Answer

Winds blow slightly inward ____.

Correct AnswerverifiedShow Answer

Station pressure and sea-level pressure can never be the same value.

Correct AnswerverifiedShow Answer

At sea level, standard atmospheric pressure is ____.

Correct AnswerverifiedShow Answer

The unit of pressure most commonly found on a surface weather map is ____.

Correct AnswerverifiedShow Answer

How does an aneroid barometer differ from a mercury barometer?

Correct AnswerverifiedAn aneroid barometer houses a small, fle...View AnswerShow Answer

The wind around a surface low pressure center in the ____ blows clockwise and inward toward the center.

Correct AnswerverifiedShow Answer

Horizontal pressure variations cause air to move from areas of _____ pressure to areas of ____ pressure.

Correct AnswerverifiedShow Answer

The surface pressures at the bases of warm and cold columns of air are equal. Air pressure in the warm column of air will ____ with increasing height ____ in the cold column.

Correct AnswerverifiedShow Answer

If you (in the Northern Hemisphere)stand with the wind aloft to your back, Buys Ballot's law states that lower pressure will be to your right and higher pressure to your left.

Correct AnswerverifiedShow Answer

A ____________________ barometer uses a transducer to detect the change in pressure exerted by the atmosphere on a precisely engineered surface, and the change in pressure is then converted into an electrical signal.

Correct AnswerverifiedShow Answer

The unit of pressure designated by the International System (SI) of measurement is the ____.

Correct AnswerverifiedShow Answer

Correct Answer
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"29.92" stands for 29.92 inches of mercu...
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An aneroid barometer houses a small, fle...
View Answer

Correct Answer
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Horizontal pressure variations cause air to move from areas of _ pressure to areas of pressure.

Correct Answer
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The surface pressures at the bases of warm and cold columns of air are equal. Air pressure in the warm column of air will with increasing height in the cold column.

Correct Answer
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