Question 1

On a weather map, an L depicts an area of low pressure. In this region, if the isobars are closely spaced around the low, the weather forecast calls for

Accepted Answer

A)  cloudy skies and windy conditions.
B)  clear skies with light winds.
C)  warm temperatures with light winds.
D)  snow.E) A) and B)
F) A) and C)

Question 2

As air temperature decreases, relative humidity

Accepted Answer

A)  drops.
B)  stays the same.
C)  decreases.
D)  increases.E) B) and D)
F) C) and D)

Question 3

Lightning occurs as water droplets in a cloud become electrically charged. Energy is positively charged

Accepted Answer

A)  at the base of the cloud.
B)  at the top of the cloud.
C)  throughout the cloud.
D)  surrounding the cloud.E) A) and B)
F) A) and C)

Question 4

Briefly describe how thunder and lightning develop.

Accepted Answer

Lightning and thunder often accompany th...

Question 5

As an air parcel moves up the side of a mountain, it

Accepted Answer

A)  expands and cools.
B)  expands and warms.
C)  compresses and cools.
D)  compresses and warms.E) B) and C)
F) A) and C)

Question 6

The wind blows in response to

Accepted Answer

A)  pressure differences.
B)  Earth's rotation.
C)  temperature differences.
D)  pressure and temperature differences and Earth's rotation.
E)  all of theseF) A) and D)
G) A) and B)

Question 7

When warm air is above cooler air it is called

Accepted Answer

A)  stable.
B)  unstable.
C)  a temperature inversion.
D)  a Chinook.E) All of the above
F) A) and D)

Question 8

High clouds have the prefix:

Accepted Answer

A)  Nimbo-.
B)  Alto-.
C)  Strato-.
D)  Cirro-.E) A) and D)
F) All of the above

Question 9

Warm humid air is characteristic of a

Accepted Answer

A)  maritime polar air mass.
B)  continental polar air mass.
C)  maritime tropical air mass.
D)  continental tropical air mass.E) None of the above
F) All of the above

Question 10

Cloud types associated with stable air include

Accepted Answer

A)  cumulus and cumulonimbus.
B)  cirrostratus, altostratus, and stratus.
C)  cirrostratus, altocumulus, and altostratus.
D)  stratocumulus, stratus, and cirrostratus.E) A) and B)
F) A) and C)

Question 11

In order to produce precipitation, an air mass must rise because rising air

Accepted Answer

A)  allows water droplets more time in the cloud where they can grow in size.
B)  produces downdrafts which increases the evaporation of droplets from the cloud.
C)  supports the downfall of raindrops.
D)  all of the above.E) None of the above
F) A) and D)

Question 12

Why does a drop in air pressure indicate the coming of cloudy weather and a rise in air pressure indicate clear weather?

Accepted Answer

First of all, warm air is associated wit...

Question 13

The fundamental source of energy released by a tropical hurricane comes from

Accepted Answer

A)  the trade winds.
B)  the Sun.
C)  warm moist air.
D)  the convergence of maritime polar and maritime tropical air masses.E) B) and D)
F) A) and B)

Question 14

Does Earth's surface significantly influence the flow of air above it?

Accepted Answer

Yes! Air moving above Earth's surface pi...

Question 15

When a cold air mass moves into a region occupied by a warm air mass, the contact zone is called

Accepted Answer

A)  a cold front.
B)  a warm front.
C)  a stationary front.
D)  an occluded front.E) B) and C)
F) C) and D)

Question 16

On a weather map we see an H for Highs and an L for Lows. In a high pressure region we generally can find

Accepted Answer

A)  stormy weather.
B)  clear skies.
C)  very cold temperatures.
D)  cloud cover.E) None of the above
F) B) and C)

Question 17

In order for clouds to form, air must be lifted. The three principal lifting mechanisms are

Accepted Answer

A)  orographic, condensational, and frontal lifting.
B)  orthographic, conversational, and frontal lobotomy.
C)  convectional, orographic, and frontal lifting.
D)  adiabatic, topographic, and inversional lifting.E) A) and B)
F) C) and D)

Question 18

All of Earth's weather occurs in the

Accepted Answer

A)  lower levels of the atmosphere.
B)  troposphere.
C)  tropopause.
D)  troposphere and stratosphere.E) A) and B)
F) C) and D)

Question 19

As air temperature decreases, relative humidity

Accepted Answer

A)  increases.
B)  decreases.
C)  stays the same.
D)  becomes colder.E) B) and D)
F) A) and B)

Question 20

Hurricanes are more likely to form near

Accepted Answer

A)  warm waters where the air is humid.
B)  warm waters where the air is dry.
C)  cold bodies of water where the air is humid.
D)  cold bodies of water where the air is dry.E) C) and D)
F) B) and C)

Exam 25: Driving Forces of Weather

On a weather map, an L depicts an area of low pressure. In this region, if the isobars are closely spaced around the low, the weather forecast calls for

Correct AnswerverifiedShow Answer

In order for clouds to form, air must be lifted. The three principal lifting mechanisms are

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The wind blows in response to

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Hurricanes are more likely to form near

Correct AnswerverifiedShow Answer

The fundamental source of energy released by a tropical hurricane comes from

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When warm air is above cooler air it is called

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High clouds have the prefix:

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Does Earth's surface significantly influence the flow of air above it?

Correct AnswerverifiedYes! Air moving above Earth's surface pi...View AnswerShow Answer

Briefly describe how thunder and lightning develop.

Correct AnswerverifiedLightning and thunder often accompany th...View AnswerShow Answer

All of Earth's weather occurs in the

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As an air parcel moves up the side of a mountain, it

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Warm humid air is characteristic of a

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Lightning occurs as water droplets in a cloud become electrically charged. Energy is positively charged

Correct AnswerverifiedShow Answer

When a cold air mass moves into a region occupied by a warm air mass, the contact zone is called

Correct AnswerverifiedShow Answer

Cloud types associated with stable air include

Correct AnswerverifiedShow Answer

As air temperature decreases, relative humidity

Correct AnswerverifiedShow Answer

Why does a drop in air pressure indicate the coming of cloudy weather and a rise in air pressure indicate clear weather?

Correct AnswerverifiedFirst of all, warm air is associated wit...View AnswerShow Answer

As air temperature decreases, relative humidity

Correct AnswerverifiedShow Answer

On a weather map we see an H for Highs and an L for Lows. In a high pressure region we generally can find

Correct AnswerverifiedShow Answer

In order to produce precipitation, an air mass must rise because rising air

Correct AnswerverifiedShow Answer

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Yes! Air moving above Earth's surface pi...
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Lightning and thunder often accompany th...
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Correct Answer
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First of all, warm air is associated wit...
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Correct Answer
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Correct Answer
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