Question 1

The central United States sees more tornadoes than any other region in the world.

Accepted Answer

A) True 
 B)False

Question 2

Downdrafts and updrafts found side by side relate to the ________ in the development of a thunderstorm.

Accepted Answer

A) dissipating stage 
B) mature stage 
C) cumulus stage 
A) dissipating stage 
B) mature stage 
C) cumulus stage

Question 3

An air mass thunderstorm is most intense during the ________ stage.

Accepted Answer

A) multicell 
B) cumulus 
C) dissipating 
D) mature 
A) multicell 
B) cumulus 
C) dissipating 
D) mature

Question 4

If you see lightning and then hear the associated thunder 10 seconds later,the lightning flash was about ________ mile(s)away.

Accepted Answer

A) three 
B) four 
C) one 
D) five 
E) two 
A) three 
B) four 
C) one 
D) five 
E) two

Question 5

Because of the tremendous pressure gradient associated with a strong tornado,maximum winds approach ________ miles per hour.

Accepted Answer

A) 100 
B) 300 
C) 600 
D) 1000 
A) 100 
B) 300 
C) 600 
D) 1000

Question 6

Temperature inversions (stable layers)in air layers above the ground can contribute to thunderstorm development.

Accepted Answer

A) True 
 B)False

Question 7

During the dissipating stage of a thunderstorm,the downdraft is weaker than the updraft.

Accepted Answer

A) True 
 B)False

Question 8

Which was the most devastating (and deadly)tornado disaster in U.S.history?

Accepted Answer

The Tri-St

Question 9

Divergence in the upper-level jet stream hinders the formation of severe thunderstorms.

Accepted Answer

A) True 
 B)False

Question 10

Over the last 30 years,which of these has caused the FEWEST weather related deaths on average in the U.S.?

Accepted Answer

A) lightning 
B) hurricanes 
C) tornadoes 
D) floods 
A) lightning 
B) hurricanes 
C) tornadoes 
D) floods

Question 11

Why is strong heating of the ground by the Sun associated with thunderstorms?

Accepted Answer

A) reduces the relative humidity 
B) reduces the dew point 
C) increases the wind speed 
D) increases the pressure gradient 
E) leads to greater instability 
A) reduces the relative humidity 
B) reduces the dew point 
C) increases the wind speed 
D) increases the pressure gradient 
E) leads to greater instability

Question 12

A thunderstorm's direction of movement over the ground is determined by the gust front.

Accepted Answer

A) True 
 B)False

Question 13

The vast majority of cyclones are hurricanes and tornadoes.

Accepted Answer

A) True 
 B)False

Question 14

Name the two air-mass types most likely to be involved when severe thunderstorms occur.

Accepted Answer

Maritime t

Question 15

This type of cloud brings thunderstorms.

Accepted Answer

A) cumulus 
B) altostratus 
C) nimbostratus 
D) stratocumulus 
E) cumulonimbus 
A) cumulus 
B) altostratus 
C) nimbostratus 
D) stratocumulus 
E) cumulonimbus

Question 16

A long lightning flash at some distance from the observer produces the thunder we hear as a rumble.

Accepted Answer

A) True 
 B)False

Question 17

An air mass thunderstorm rarely lives long enough to create very severe weather because:

Accepted Answer

A) the downdrafts quickly become strong enough to stop the updraft and influx of moisture to the storm. 
B) the atmosphere is generally fairly stable when these storms develop. 
C) there is rarely enough moisture available to keep the storm alive for longer than 30 minutes. 
D) wind shear causes the storm's updraft to become tilted. 
A) the downdrafts quickly become strong enough to stop the updraft and influx of moisture to the storm. 
B) the atmosphere is generally fairly stable when these storms develop. 
C) there is rarely enough moisture available to keep the storm alive for longer than 30 minutes. 
D) wind shear causes the storm's updraft to become tilted.

Question 18

The term cyclone is BEST defined as:

Accepted Answer

A) a hurricane. 
B) a violent tornado. 
C) any circulation around a low-pressure center. 
D) a storm that develops over an ocean. 
A) a hurricane. 
B) a violent tornado. 
C) any circulation around a low-pressure center. 
D) a storm that develops over an ocean.

Question 19

The circulation in the immediate vicinity of a thunderstorm is:

Accepted Answer

A) anticyclonic. 
B) variable and gusty. 
C) cyclonic. 
D) calm. 
A) anticyclonic. 
B) variable and gusty. 
C) cyclonic. 
D) calm.

Question 20

It is impossible to warn people of every lightning flash because:

Accepted Answer

A) it strikes so frequently and in so many places. 
B) it kills few people compared to the other types of severe weather,so it isn't studied as much. 
C) scientists don't understand exactly how it forms. 
D)  people are only struck by lightning a few times each decade,so most don't listen to warnings. 
A) it strikes so frequently and in so many places. 
B) it kills few people compared to the other types of severe weather,so it isn't studied as much. 
C) scientists don't understand exactly how it forms. 
D)  people are only struck by lightning a few times each decade,so most don't listen to warnings.

The central United States sees more tornadoes than any other region in the world.

Downdrafts and updrafts found side by side relate to the ________ in the development of a thunderstorm.

An air mass thunderstorm is most intense during the ________ stage.

If you see lightning and then hear the associated thunder 10 seconds later,the lightning flash was about ________ mile(s)away.

Because of the tremendous pressure gradient associated with a strong tornado,maximum winds approach ________ miles per hour.

Temperature inversions (stable layers)in air layers above the ground can contribute to thunderstorm development.

During the dissipating stage of a thunderstorm,the downdraft is weaker than the updraft.

Which was the most devastating (and deadly)tornado disaster in U.S.history?

Divergence in the upper-level jet stream hinders the formation of severe thunderstorms.

Over the last 30 years,which of these has caused the FEWEST weather related deaths on average in the U.S.?

Why is strong heating of the ground by the Sun associated with thunderstorms?

A thunderstorm's direction of movement over the ground is determined by the gust front.

The vast majority of cyclones are hurricanes and tornadoes.

Name the two air-mass types most likely to be involved when severe thunderstorms occur.

This type of cloud brings thunderstorms.

A long lightning flash at some distance from the observer produces the thunder we hear as a rumble.

An air mass thunderstorm rarely lives long enough to create very severe weather because:

The term cyclone is BEST defined as:

The circulation in the immediate vicinity of a thunderstorm is:

It is impossible to warn people of every lightning flash because:

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters

Exam 10: Thunderstorms and Tornadoes

The central United States sees more tornadoes than any other region in the world.

Downdrafts and updrafts found side by side relate to the ________ in the development of a thunderstorm.

An air mass thunderstorm is most intense during the ________ stage.

If you see lightning and then hear the associated thunder 10 seconds later,the lightning flash was about ________ mile(s)away.

Because of the tremendous pressure gradient associated with a strong tornado,maximum winds approach ________ miles per hour.

Temperature inversions (stable layers)in air layers above the ground can contribute to thunderstorm development.

During the dissipating stage of a thunderstorm,the downdraft is weaker than the updraft.

Which was the most devastating (and deadly)tornado disaster in U.S.history?

Divergence in the upper-level jet stream hinders the formation of severe thunderstorms.

Over the last 30 years,which of these has caused the FEWEST weather related deaths on average in the U.S.?

Why is strong heating of the ground by the Sun associated with thunderstorms?

A thunderstorm's direction of movement over the ground is determined by the gust front.

The vast majority of cyclones are hurricanes and tornadoes.

Name the two air-mass types most likely to be involved when severe thunderstorms occur.

This type of cloud brings thunderstorms.

A long lightning flash at some distance from the observer produces the thunder we hear as a rumble.

An air mass thunderstorm rarely lives long enough to create very severe weather because:

The term cyclone is BEST defined as:

The circulation in the immediate vicinity of a thunderstorm is:

It is impossible to warn people of every lightning flash because:

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Moisture and Atmospheric Stability

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters