Question 1

Some of the most dangerous weather is produced by a type of thunderstorm called a(n):

Accepted Answer

A)  gust front. 
B)  supercell. 
C)  roll cloud. 
D)  updraft. 
A)  gust front. 
B)  supercell. 
C)  roll cloud. 
D)  updraft.

Question 2

Thunderstorms form when________-- , humid air rises in a(n)__________ environment.

Accepted Answer

A)  cold; stable 
B)  warm; unstable 
C)  warm; stable 
D)  cold; unstable 
A)  cold; stable 
B)  warm; unstable 
C)  warm; stable 
D)  cold; unstable

Question 3

A tornado is a small, very intense example of the:

Accepted Answer

A)  jet stream. 
B)  Coriolis effect. 
C)  cyclone. 
D)  anticyclone. 
E)  geostrophic wind. 
A)  jet stream. 
B)  Coriolis effect. 
C)  cyclone. 
D)  anticyclone. 
E)  geostrophic wind.

Question 4

A microburst is:

Accepted Answer

A)  a brief, intense explosion of lightning. 
B)  rarely damaging. 
C)  associated only with tornadic thunderstorm cells. 
D)  another name for a downburst. 
A)  a brief, intense explosion of lightning. 
B)  rarely damaging. 
C)  associated only with tornadic thunderstorm cells. 
D)  another name for a downburst.

Question 5

Why is a convergent pattern of surface winds sometimes associated with thunderstorm formation?

Accepted Answer

Surface convergence

Question 6

A developing tornado is called a funnel cloud until it makes contact with the surface.

Accepted Answer

A) True 
 B)False

Question 7

Downdrafts totally dominate the_____ of an air mass thunderstorm.

Accepted Answer

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

Question 8

Mesoscale convective complexes:

Accepted Answer

A)  occur along dry lines. 
B)  begin as air mass thunderstorms that form in the afternoon. 
C)  do not provide any benefit to agriculture. 
D)  tend to die out as soon as the sun goes down. 
A)  occur along dry lines. 
B)  begin as air mass thunderstorms that form in the afternoon. 
C)  do not provide any benefit to agriculture. 
D)  tend to die out as soon as the sun goes down.

Question 9

In the United States, a mesoscale convective complex is most likely to develop in:

Accepted Answer

A)  the Gulf of Mexico. 
B)  the Pacific Northwest. 
C)  the Great Plains. 
D)  New England. 
A)  the Gulf of Mexico. 
B)  the Pacific Northwest. 
C)  the Great Plains. 
D)  New England.

Question 10

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 11

Drylines are capable of producing thunderstorms because:

Accepted Answer

A)  there is an abrupt change in temperature across the dryline. 
B)  the dry air mass forces the moist air mass to rise. 
C)  the moist air mass lifts the dry air mass. 
D)  the dry air mass is unstable and rising. 
A)  there is an abrupt change in temperature across the dryline. 
B)  the dry air mass forces the moist air mass to rise. 
C)  the moist air mass lifts the dry air mass. 
D)  the dry air mass is unstable and rising.

Question 12

Of the following states, which is struck by the largest number of tornadoes?

Accepted Answer

A)  North Carolina 
B)  Oklahoma 
C)  Ohio 
D)  North Dakota 
E)  New Mexico 
A)  North Carolina 
B)  Oklahoma 
C)  Ohio 
D)  North Dakota 
E)  New Mexico

Question 13

Conventional radar measures:

Accepted Answer

A)  raindrop and snowflake motion. 
B)  cloud droplet numbers. 
C)  raindrop size. 
D)  raindrop motion. 
E)  rainfall intensity. 
A)  raindrop and snowflake motion. 
B)  cloud droplet numbers. 
C)  raindrop size. 
D)  raindrop motion. 
E)  rainfall intensity.

Question 14

At any given time, about how many thunderstorms are in progress on Earth?

Accepted Answer

A)  45 
B)  45,00 
C)  500 
D)  2,000 
A)  45 
B)  45,00 
C)  500 
D)  2,000

Question 15

Cloud- to- ground lightning results in a flow of electrons from the ground to the cloud.

Accepted Answer

A) True 
 B)False

Question 16

A dryline generally forms between which two air masses?

Accepted Answer

A)  cT and mT 
B)  mP and mT 
C)  cP and mT 
D)  cP and cT 
A)  cT and mT 
B)  mP and mT 
C)  cP and mT 
D)  cP and cT

Question 17

In the development of a thunderstorm, sharp and cool gusts beginning at the surface are characteristic in the___________ .

Accepted Answer

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

Question 18

What is the primary source of heat that keeps a thunderstorm cloud buoyant so that it can grow so tall?

Accepted Answer

Latent heat released

Question 19

Why is very humid air near the surface a necessary ingredient for severe thunderstorms?

Accepted Answer

A)  High humidity strengthens the cold front. 
B)  High humidity makes the rising air cool more rapidly. 
C)  Lapse rates are larger in humid air. 
D)  High humidity makes the air more dense. 
E)  More latent heat is then available as energy for the storm. 
A)  High humidity strengthens the cold front. 
B)  High humidity makes the rising air cool more rapidly. 
C)  Lapse rates are larger in humid air. 
D)  High humidity makes the air more dense. 
E)  More latent heat is then available as energy for the storm.

Question 20

The Enhanced Fujita scale is based on:

Accepted Answer

A)  the pressure gradient across the diameter of a tornado. 
B)  the measured wind speeds inside a tornado. 
C)  the level of damage caused by a tornado. 
D)  the frequency of lightning strikes concurrent with the tornado. 
A)  the pressure gradient across the diameter of a tornado. 
B)  the measured wind speeds inside a tornado. 
C)  the level of damage caused by a tornado. 
D)  the frequency of lightning strikes concurrent with the tornado.

Some of the most dangerous weather is produced by a type of thunderstorm called a(n):

Thunderstorms form when-- , humid air rises in a(n)__ environment.

A tornado is a small, very intense example of the:

A microburst is:

Why is a convergent pattern of surface winds sometimes associated with thunderstorm formation?

A developing tornado is called a funnel cloud until it makes contact with the surface.

Downdrafts totally dominate the_____ of an air mass thunderstorm.

Mesoscale convective complexes:

In the United States, a mesoscale convective complex is most likely to develop in:

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

Drylines are capable of producing thunderstorms because:

Of the following states, which is struck by the largest number of tornadoes?

Conventional radar measures:

At any given time, about how many thunderstorms are in progress on Earth?

Cloud- to- ground lightning results in a flow of electrons from the ground to the cloud.

A dryline generally forms between which two air masses?

In the development of a thunderstorm, sharp and cool gusts beginning at the surface are characteristic in the___________ .

What is the primary source of heat that keeps a thunderstorm cloud buoyant so that it can grow so tall?

Why is very humid air near the surface a necessary ingredient for severe thunderstorms?

The Enhanced Fujita scale is based on:

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

Some of the most dangerous weather is produced by a type of thunderstorm called a(n):

Thunderstorms form when________-- , humid air rises in a(n)__________ environment.

A tornado is a small, very intense example of the:

A microburst is:

Why is a convergent pattern of surface winds sometimes associated with thunderstorm formation?

A developing tornado is called a funnel cloud until it makes contact with the surface.

Downdrafts totally dominate the_____ of an air mass thunderstorm.

Mesoscale convective complexes:

In the United States, a mesoscale convective complex is most likely to develop in:

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

Drylines are capable of producing thunderstorms because:

Of the following states, which is struck by the largest number of tornadoes?

Conventional radar measures:

At any given time, about how many thunderstorms are in progress on Earth?

Cloud- to- ground lightning results in a flow of electrons from the ground to the cloud.

A dryline generally forms between which two air masses?

In the development of a thunderstorm, sharp and cool gusts beginning at the surface are characteristic in the___________ .

What is the primary source of heat that keeps a thunderstorm cloud buoyant so that it can grow so tall?

Why is very humid air near the surface a necessary ingredient for severe thunderstorms?

The Enhanced Fujita scale is based on:

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

Thunderstorms form when-- , humid air rises in a(n)__ environment.