Question 1

Lightning may occur

Accepted Answer

A)  within a cloud. 
B)  from a cloud to the ground. 
C)  from one cloud to another cloud. 
D)  all of the above 
A)  within a cloud. 
B)  from a cloud to the ground. 
C)  from one cloud to another cloud. 
D)  all of the above

Question 2

A typical diameter of a tornado would be

Accepted Answer

A)  50 meters. 
B)  250 meters. 
C)  1,000 meters. 
D)  2,500 meters. 
E)  4,000 meters. 
A)  50 meters. 
B)  250 meters. 
C)  1,000 meters. 
D)  2,500 meters. 
E)  4,000 meters.

Question 3

Strong vertical wind shear

Accepted Answer

A)  does not play an important role in the development of severe thunderstorms. 
B)  inhibits the formation of severe thunderstorms. 
C)  helps thunderstorms to become severe. 
A)  does not play an important role in the development of severe thunderstorms. 
B)  inhibits the formation of severe thunderstorms. 
C)  helps thunderstorms to become severe.

Question 4

At home,when confronted with an approaching tornado,you should

Accepted Answer

A)  open the windows right away. 
B)  grab a video camera and start filming. 
C)  listen to see whether the tornado has an audible roar. 
D)  seek shelter immediately. 
A)  open the windows right away. 
B)  grab a video camera and start filming. 
C)  listen to see whether the tornado has an audible roar. 
D)  seek shelter immediately.

Question 5

Most squall line thunderstorms form

Accepted Answer

A)  in advance of a cold front. 
B)  along a cold front. 
C)  behind a cold front. 
D)  in advance of a warm front. 
E)  along an occluded front. 
A)  in advance of a cold front. 
B)  along a cold front. 
C)  behind a cold front. 
D)  in advance of a warm front. 
E)  along an occluded front.

Question 6

Which figure comes closest to the estimated number of thunderstorms that occur each year throughout the world?

Accepted Answer

A)  2,000 
B)  40,000 
C)  100,000 
D)  600,000 
E)  14,000,000 
A)  2,000 
B)  40,000 
C)  100,000 
D)  600,000 
E)  14,000,000

Question 7

A cloud-to-ground lightning discharge will sometimes appear to flicker.This is because

Accepted Answer

A)  you are able to see the separate steps of the stepped leader. 
B)  you are able to distinguish separate return strokes. 
C)  the bright light causes you to blink. 
D)  of refraction caused by turbulent thunderstorm winds. 
A)  you are able to see the separate steps of the stepped leader. 
B)  you are able to distinguish separate return strokes. 
C)  the bright light causes you to blink. 
D)  of refraction caused by turbulent thunderstorm winds.

Question 8

Damage to structures inflicted by tornadoes can be caused by

Accepted Answer

A)  flying debris. 
B)  the tornadoes high winds. 
C)  the drop in air pressure as a tornado moves overhead. 
D)  the drop in air pressure above a roof as high winds blow over it. 
E)  all of the above 
A)  flying debris. 
B)  the tornadoes high winds. 
C)  the drop in air pressure as a tornado moves overhead. 
D)  the drop in air pressure above a roof as high winds blow over it. 
E)  all of the above

Question 9

Which of the following is the most accurate description of the principle of a lightning rod?

Accepted Answer

A)  The lightning rod acts to discharge the thunderstorm. 
B)  The lightning rod intercepts the lightning and safely carries the lightning current around the object it protects. 
C)  Lightning rods have been used since the 1700s,but the principle of their operation is not known. 
D)  Positive charge induced in the lightning rod repels the negative charge in an approaching step leader. 
A)  The lightning rod acts to discharge the thunderstorm. 
B)  The lightning rod intercepts the lightning and safely carries the lightning current around the object it protects. 
C)  Lightning rods have been used since the 1700s,but the principle of their operation is not known. 
D)  Positive charge induced in the lightning rod repels the negative charge in an approaching step leader.

Question 10

Most tornadoes move from

Accepted Answer

A)  northwest to southwest. 
B)  southwest to northeast. 
C)  south to north. 
D)  southeast to northwest. 
A)  northwest to southwest. 
B)  southwest to northeast. 
C)  south to north. 
D)  southeast to northwest.

Question 11

Electrons

Accepted Answer

A)  are negatively charged. 
B)  are positively charged. 
C)  carry no charge. 
D)  can carry either positive or negative charge. 
A)  are negatively charged. 
B)  are positively charged. 
C)  carry no charge. 
D)  can carry either positive or negative charge.

Question 12

After a tornado is spotted,

Accepted Answer

A)  a tornado watch is issued. 
B)  its direction of movement is carefully monitored by aircraft. 
C)  a tornado warning is issued. 
D)  hail begins to fall from the cloud. 
E)  attempts may be made to change its direction of movement. 
A)  a tornado watch is issued. 
B)  its direction of movement is carefully monitored by aircraft. 
C)  a tornado warning is issued. 
D)  hail begins to fall from the cloud. 
E)  attempts may be made to change its direction of movement.

Question 13

Tornadoes are usually observed

Accepted Answer

A)  behind cold fronts. 
B)  on the windward side of mountains. 
C)  near large bodies of water. 
D)  along occluded fronts. 
E)  ahead of cold fronts. 
A)  behind cold fronts. 
B)  on the windward side of mountains. 
C)  near large bodies of water. 
D)  along occluded fronts. 
E)  ahead of cold fronts.

Question 14

What is a squall line? Where would you expect squall lines to form?

Accepted Answer

The answer of What is a squall line? Where would...

Question 15

List and describe the sequence of events that occur during a cloud-to-ground lightning discharge.

Accepted Answer

During a cloud-to-ground lightning disch

Question 16

Thunderstorms that produce tornadoes

Accepted Answer

A)  have very little cloud-to-ground lightning. 
B)  have updraft velocities that exceed 100 miles per hour. 
C)  have rotating updrafts. 
D)  will not produce hail. 
A)  have very little cloud-to-ground lightning. 
B)  have updraft velocities that exceed 100 miles per hour. 
C)  have rotating updrafts. 
D)  will not produce hail.

Question 17

If you see a lightning stroke and then,15 seconds later,hear the thunder,the lightning is about ____ miles away.

Accepted Answer

A)  45 
B)  15 
C)  5 
D)  3 
A)  45 
B)  15 
C)  5 
D)  3

Question 18

Thunder will not occur

Accepted Answer

A)  without lightning. 
B)  in wintertime thunderstorms. 
C)  in thunderstorms over the ocean. 
D)  when a thunderstorm is producing precipitation. 
A)  without lightning. 
B)  in wintertime thunderstorms. 
C)  in thunderstorms over the ocean. 
D)  when a thunderstorm is producing precipitation.

Question 19

Where does the energy contained in a mature thunderstorm come from?

Accepted Answer

The energy contained in a mature thunder

Question 20

Thunder is caused by

Accepted Answer

A)  the collision between two thunderstorms with opposite electrical charge. 
B)  the rapid heating of air surrounding a lightning channel. 
C)  the explosion that occurs when + and - charge collide and neutralize each other. 
D)  turbulent wind motions inside the thunderstorm. 
A)  the collision between two thunderstorms with opposite electrical charge. 
B)  the rapid heating of air surrounding a lightning channel. 
C)  the explosion that occurs when + and - charge collide and neutralize each other. 
D)  turbulent wind motions inside the thunderstorm.

Lightning may occur

A typical diameter of a tornado would be

Strong vertical wind shear

At home,when confronted with an approaching tornado,you should

Most squall line thunderstorms form

Which figure comes closest to the estimated number of thunderstorms that occur each year throughout the world?

A cloud-to-ground lightning discharge will sometimes appear to flicker.This is because

Damage to structures inflicted by tornadoes can be caused by

Which of the following is the most accurate description of the principle of a lightning rod?

Most tornadoes move from

Electrons

After a tornado is spotted,

Tornadoes are usually observed

What is a squall line? Where would you expect squall lines to form?

List and describe the sequence of events that occur during a cloud-to-ground lightning discharge.

Thunderstorms that produce tornadoes

If you see a lightning stroke and then,15 seconds later,hear the thunder,the lightning is about ____ miles away.

Thunder will not occur

Where does the energy contained in a mature thunderstorm come from?

Thunder is caused by

Earth and Its Atmosphere

Energy: Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light, Color, and Atmospheric Optics

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Exam 14: Thunderstorms and Tornadoes

Lightning may occur

A typical diameter of a tornado would be

Strong vertical wind shear

At home,when confronted with an approaching tornado,you should

Most squall line thunderstorms form

Which figure comes closest to the estimated number of thunderstorms that occur each year throughout the world?

A cloud-to-ground lightning discharge will sometimes appear to flicker.This is because

Damage to structures inflicted by tornadoes can be caused by

Which of the following is the most accurate description of the principle of a lightning rod?

Most tornadoes move from

Electrons

After a tornado is spotted,

Tornadoes are usually observed

What is a squall line? Where would you expect squall lines to form?

List and describe the sequence of events that occur during a cloud-to-ground lightning discharge.

Thunderstorms that produce tornadoes

If you see a lightning stroke and then,15 seconds later,hear the thunder,the lightning is about ____ miles away.

Thunder will not occur

Where does the energy contained in a mature thunderstorm come from?

Thunder is caused by

Earth and Its Atmosphere

Energy: Warming the Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Light, Color, and Atmospheric Optics

Filters