Question 1

On an upper-level chart, which of the following is indicated by a ridge?

Accepted Answer

A)  average heights
B)  higher than average heights
C)  a region with calm winds
D)  lower than average heightsE) None of the above
F) B) and C)

Question 2

​ 
-The wind in the northern hemisphere will eventually blow toward which of the following directions?

Accepted Answer

A)  east
B)  north
C)  south
D)  westE) None of the above
F) All of the above

Question 3

Suppose a parcel of air has a given temperature, pressure, and density. Which of the following will happen to the air pressure inside the parcel if its size remains the same while its temperature increases?

Accepted Answer

A)  Air pressure will decrease.
B)  Air pressure will decrease to, but not lower than, 1000 hPa.
C)  Air pressure will increase.
D)  Air pressure will remain constant.E) None of the above
F) A) and B)

Question 4

Which of the following describes pressure change in relation to direction?

Accepted Answer

A)  more rapid in the horizontal direction than in the vertical
B)  more rapid in the vertical direction than in the horizontal
C)  more rapid in the vertical over land than over the ocean
D)  the same rate in horizontal and vertical directionsE) B) and D)
F) B) and C)

Question 5

Although the scale on an altimeter indicates altitude, an altimeter actually measures which of the following?

Accepted Answer

A)  temperature
B)  pressure
C)  humidity
D)  densityE) B) and C)
F) B) and D)

Question 6

On an upper-level chart, which of the following is generally associated with a centre of surface low pressure?

Accepted Answer

A)  convergence
B)  a trough
C)  zonal flow
D)  a ridgeE) A) and B)
F) A) and C)

Question 7

Suppose a station at sea level measures an air pressure of 1030 hPa. Under standard conditions, which of the following values is the most likely air pressure at an elevation of 600 metres above this station?

Accepted Answer

A)  970 hPa
B)  1024 hPa
C)  1030 hPa
D)  1090 hPaE) A) and D)
F) None of the above

Question 8

​ 
-If an air parcel is completely at rest, which of the following forces can make the parcel begin to move?

Accepted Answer

A)  gravity
B)  friction
C)  centripetal
D)  pressure gradientE) All of the above
F) B) and C)

Question 9

Consider the situation in which a wind blows at constant speed parallel to straight line isobars, and with the pressure gradient force (PGF)  in balance with the Coriolis force. Which of the following is the name for this kind of wind?

Accepted Answer

A)  geostrophic wind
B)  gradient wind
C)  cyclostrophic wind
D)  meridional windE) B) and D)
F) A) and D)

Question 10

Which of the following gives the direction of the vertical pressure gradient force?

Accepted Answer

A)  downward
B)  constantly changing between upward and downward
C)  never changing
D)  upwardE) C) and D)
F) None of the above

Question 11

Sketch the wind flow patterns around surface high- and low-pressure centres in the northern and southern hemispheres.

Accepted Answer

Surface high-pressure centers in the nor...

Question 12

Which of the following describes the relation on an upper-level chart between air temperature and pressure?

Accepted Answer

A)  Changing air temperature is normally associated with low pressure.
B)  Constant air temperature is normally associated with low pressure.
C)  Warm air is normally associated with high pressure.
D)  Cold air is normally associated with high pressure.E) B) and C)
F) A) and B)

Question 13

Which of the following terms refers to the wind flow pattern when the wind blows in a more or less west-to-east direction?

Accepted Answer

A)  zonal
B)  centripetal
C)  meridional
D)  gradientE) A) and C)
F) None of the above

Question 14

In the northern hemisphere, suppose you observe the upper-level winds blowing from the south. In which direction from you is the trough of low pressure?

Accepted Answer

A)  west
B)  east
C)  north
D)  southE) None of the above
F) A) and C)

Question 15

What does Newton's first law state?

Accepted Answer

A)  An object at rest always has no frictional force as long as no force is exerted on the object.
B)  An object at rest can exert no force as long as no force is exerted on the object.
C)  An object at rest will remain at rest as long as no force is exerted on the object.
D)  An object at rest equals its mass times the acceleration produced as long as no force is exerted on the object.E) All of the above
F) None of the above

Question 16

Briefly outline the important aspects of all the forces that move air in the atmosphere.

Accepted Answer

Air movement in the atmosphere is primar...

Question 17

Which of the following gives the name for the force that causes a stationary parcel of air to begin to move horizontally?

Accepted Answer

A)  Coriolis force
B)  frictional force
C)  centripetal force
D)  pressure gradient forceE) B) and D)
F) All of the above

Question 18

Which of the following describes cyclonic flow regardless of the hemisphere?

Accepted Answer

A)  It is a counterclockwise flow.
B)  It is a clockwise wind flow.
C)  It is circulation around a low-pressure centre.
D)  It is circulation around a high-pressure centre.E) A) and D)
F) A) and C)

Question 19

Which of the following forces can influence wind direction?

Accepted Answer

A)  potential force
B)  magnetic force
C)  pressure gradient force
D)  kinetic forceE) A) and B)
F) A) and C)

Question 20

Which of the following describes why the net force acting on air that is blowing parallel to straight contours at constant speed is zero?

Accepted Answer

A)  Coriolis and pressure gradient forces are equal and pulling in opposite directions.
B)  Coriolis and pressure gradient forces are equal and pulling in identical directions.
C)  Coriolis and frictional forces are equal, and pulling in identical directions.
D)  Coriolis and frictional forces are equal, and pulling in opposite directions.E) B) and D)
F) A) and D)

Exam 8: Air Pressure and Winds

On an upper-level chart, which of the following is indicated by a ridge?

Correct AnswerverifiedShow Answer

Which of the following gives the direction of the vertical pressure gradient force?

Correct AnswerverifiedShow Answer

Which of the following terms refers to the wind flow pattern when the wind blows in a more or less west-to-east direction?

Correct AnswerverifiedShow Answer

On an upper-level chart, which of the following is generally associated with a centre of surface low pressure?

Correct AnswerverifiedShow Answer

Suppose a station at sea level measures an air pressure of 1030 hPa. Under standard conditions, which of the following values is the most likely air pressure at an elevation of 600 metres above this station?

Correct AnswerverifiedShow Answer

Which of the following gives the name for the force that causes a stationary parcel of air to begin to move horizontally?

Correct AnswerverifiedShow Answer

Which of the following forces can influence wind direction?

Correct AnswerverifiedShow Answer

Which of the following describes pressure change in relation to direction?

Correct AnswerverifiedShow Answer

In the northern hemisphere, suppose you observe the upper-level winds blowing from the south. In which direction from you is the trough of low pressure?

Correct AnswerverifiedShow Answer

What does Newton's first law state?

Correct AnswerverifiedShow Answer

Which of the following describes the relation on an upper-level chart between air temperature and pressure?

Correct AnswerverifiedShow Answer

​ -The wind in the northern hemisphere will eventually blow toward which of the following directions?

Correct AnswerverifiedShow Answer

​ -If an air parcel is completely at rest, which of the following forces can make the parcel begin to move?

Correct AnswerverifiedShow Answer

Sketch the wind flow patterns around surface high- and low-pressure centres in the northern and southern hemispheres.

Correct AnswerAnswered by ExamLex AISurface high-pressure centers in the nor...View AnswerShow Answer

Which of the following describes cyclonic flow regardless of the hemisphere?

Correct AnswerverifiedShow Answer

Although the scale on an altimeter indicates altitude, an altimeter actually measures which of the following?

Correct AnswerverifiedShow Answer

Suppose a parcel of air has a given temperature, pressure, and density. Which of the following will happen to the air pressure inside the parcel if its size remains the same while its temperature increases?

Correct AnswerverifiedShow Answer

Briefly outline the important aspects of all the forces that move air in the atmosphere.

Correct AnswerAnswered by ExamLex AIAir movement in the atmosphere is primar...View AnswerShow Answer

Which of the following describes why the net force acting on air that is blowing parallel to straight contours at constant speed is zero?

Correct AnswerverifiedShow Answer

Consider the situation in which a wind blows at constant speed parallel to straight line isobars, and with the pressure gradient force (PGF) in balance with the Coriolis force. Which of the following is the name for this kind of wind?

Correct AnswerverifiedShow Answer

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-The wind in the northern hemisphere will eventually blow toward which of the following directions?

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-If an air parcel is completely at rest, which of the following forces can make the parcel begin to move?

Correct Answer
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Surface high-pressure centers in the nor...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Air movement in the atmosphere is primar...
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Correct Answer
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