Question 1

An instrument used to measure relative humidity is called a:

Accepted Answer

A) hygrometer. 
B) hydrometer. 
C) humidimeter. 
D) aquimeter. 
A) hygrometer. 
B) hydrometer. 
C) humidimeter. 
D) aquimeter.

Question 2

The heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud:

Accepted Answer

A) makes the air heavier. 
B) adds water to the cloud. 
C) cools off the cloud. 
D) evaporates more water. 
E) helps the cloud to rise higher. 
A) makes the air heavier. 
B) adds water to the cloud. 
C) cools off the cloud. 
D) evaporates more water. 
E) helps the cloud to rise higher.

Question 3

In order to have significant snowfall accumulation,dew points must generally be above:

Accepted Answer

A) 0°F. 
B) -10°F. 
C) 10°F. 
D) 32°F. 
A) 0°F. 
B) -10°F. 
C) 10°F. 
D) 32°F.

Question 4

-Refer to the diagram of a simple parcel above.What is the absolute humidity of this parcel?

Accepted Answer

A) 0)2 g/kg 
B) 10 g/m³ 
C) 2 g/m³ 
D) 5 g/kg 
A) 0)2 g/kg 
B) 10 g/m³ 
C) 2 g/m³ 
D) 5 g/kg

Question 5

To make a decision about the stability of the air,what is the most important information that you need to know?

Accepted Answer

the value

Question 6

Once precipitation has fallen on land,it may take one of three paths.List these three possible routes.

Accepted Answer

runoff,inf

Question 7

? =   The formula shown above defines the humidity measure known as:

Accepted Answer

A) the mixing ratio. 
B) absolute humidity. 
C) vapor pressure. 
D) relative humidity. 
A) the mixing ratio. 
B) absolute humidity. 
C) vapor pressure. 
D) relative humidity.

Question 8

A stable atmosphere is one in which:

Accepted Answer

A) clouds are forming. 
B) upward vertical motions are resisted. 
C) rising bubbles of air accelerate upward. 
D) temperatures are adiabatic. 
A) clouds are forming. 
B) upward vertical motions are resisted. 
C) rising bubbles of air accelerate upward. 
D) temperatures are adiabatic.

Question 9

The air in Great Falls,Montana has a temperature of 5°C and a relative humidity of 50%.On the same afternoon,the air in Palm Springs,California has a temperature of 25°C and a relative humidity of 50%.What can be said about the amount of vapor in the air at these two cities?

Accepted Answer

A) Palm Springs will have a higher vapor content than Great Falls. 
B) Great Falls will have a higher vapor content than Palm Springs. 
C) Great Falls and Palm Springs will have the same vapor content. 
A) Palm Springs will have a higher vapor content than Great Falls. 
B) Great Falls will have a higher vapor content than Palm Springs. 
C) Great Falls and Palm Springs will have the same vapor content.

Question 10

Assume that the actual vapor content of the air remains constant over the course of a day.How does the relative humidity at 2:00 p.m.probably compare to the relative humidity at 5:00 a.m.?

Accepted Answer

A) The relative humidity at 2:00 p.m.is higher. 
B) The relative humidity at 2:00 p.m.is lower. 
C) The relative humidity is the same at 2:00 p.m.as at 5:00 a.m. 
A) The relative humidity at 2:00 p.m.is higher. 
B) The relative humidity at 2:00 p.m.is lower. 
C) The relative humidity is the same at 2:00 p.m.as at 5:00 a.m.

Question 11

Thermals are created by the lifting mechanism known as ________.

Accepted Answer

localized

Question 12

Natural convection and turbulence are most likely to occur when:

Accepted Answer

A) temperature decreases rapidly with height. 
B) relative humidity is low. 
C) temperature increases with height. 
D) air pressure is relatively high. 
E) wind is nearly calm. 
A) temperature decreases rapidly with height. 
B) relative humidity is low. 
C) temperature increases with height. 
D) air pressure is relatively high. 
E) wind is nearly calm.

Question 13

An increase in the environmental lapse rate of an air layer results in the layer becoming:

Accepted Answer

A) less stable. 
B) an air parcel. 
C) cooler. 
D) more stable. 
E) heavier. 
A) less stable. 
B) an air parcel. 
C) cooler. 
D) more stable. 
E) heavier.

Question 14

The attractive forces between the hydrogen atoms in one water molecule and the oxygen atoms in another molecule are known as:

Accepted Answer

A) water bonds 
B) liquid bonds 
C) hydrogen bonds 
D) dark forces 
A) water bonds 
B) liquid bonds 
C) hydrogen bonds 
D) dark forces

Question 15

The most important process of cloud formation in the atmosphere is:

Accepted Answer

A) cooling by release of latent heat of vaporization. 
B) cooling by compression of air. 
C) radiation cooling. 
D) cooling by expansion of air. 
A) cooling by release of latent heat of vaporization. 
B) cooling by compression of air. 
C) radiation cooling. 
D) cooling by expansion of air.

Question 16

The change in the actual air temperature as you go up into the atmosphere is called:

Accepted Answer

A) environmental lapse rate. 
B) convergence. 
C) latent heat. 
D) conversion. 
E) diffusion. 
A) environmental lapse rate. 
B) convergence. 
C) latent heat. 
D) conversion. 
E) diffusion.

Question 17

Which of the following will not cause air to become more unstable?

Accepted Answer

A) forceful lifting of air 
B) subsidence of an air column 
C) intense solar heating which warms the air from below 
D) upward movement caused by general convergence 
A) forceful lifting of air 
B) subsidence of an air column 
C) intense solar heating which warms the air from below 
D) upward movement caused by general convergence

Question 18

An area that is very cold in winter will probably also have a relatively dry winter.

Accepted Answer

A) True 
 B)False

Question 19

Thunderstorms are most likely to occur when the atmosphere is absolutely unstable.

Accepted Answer

A) True 
 B)False

Question 20

On a calm night,the relative humidity a few inches above grass is lower than it is a few feet above the grass.

Accepted Answer

A) True 
 B)False

An instrument used to measure relative humidity is called a:

The heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud:

In order to have significant snowfall accumulation,dew points must generally be above:

-Refer to the diagram of a simple parcel above.What is the absolute humidity of this parcel?

To make a decision about the stability of the air,what is the most important information that you need to know?

Once precipitation has fallen on land,it may take one of three paths.List these three possible routes.

? = The formula shown above defines the humidity measure known as:

A stable atmosphere is one in which:

The air in Great Falls,Montana has a temperature of 5°C and a relative humidity of 50%.On the same afternoon,the air in Palm Springs,California has a temperature of 25°C and a relative humidity of 50%.What can be said about the amount of vapor in the air at these two cities?

Assume that the actual vapor content of the air remains constant over the course of a day.How does the relative humidity at 2:00 p.m.probably compare to the relative humidity at 5:00 a.m.?

Thermals are created by the lifting mechanism known as ________.

Natural convection and turbulence are most likely to occur when:

An increase in the environmental lapse rate of an air layer results in the layer becoming:

The attractive forces between the hydrogen atoms in one water molecule and the oxygen atoms in another molecule are known as:

The most important process of cloud formation in the atmosphere is:

The change in the actual air temperature as you go up into the atmosphere is called:

Which of the following will not cause air to become more unstable?

An area that is very cold in winter will probably also have a relatively dry winter.

Thunderstorms are most likely to occur when the atmosphere is absolutely unstable.

On a calm night,the relative humidity a few inches above grass is lower than it is a few feet above the grass.

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Thunderstorms and Tornadoes

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters

Exam 4: Moisture and Atmospheric Stability

An instrument used to measure relative humidity is called a:

The heat released when water vapor condenses to form a cloud or when liquid droplets freeze in a cloud:

In order to have significant snowfall accumulation,dew points must generally be above:

-Refer to the diagram of a simple parcel above.What is the absolute humidity of this parcel?

To make a decision about the stability of the air,what is the most important information that you need to know?

Once precipitation has fallen on land,it may take one of three paths.List these three possible routes.

? = The formula shown above defines the humidity measure known as:

A stable atmosphere is one in which:

The air in Great Falls,Montana has a temperature of 5°C and a relative humidity of 50%.On the same afternoon,the air in Palm Springs,California has a temperature of 25°C and a relative humidity of 50%.What can be said about the amount of vapor in the air at these two cities?

Assume that the actual vapor content of the air remains constant over the course of a day.How does the relative humidity at 2:00 p.m.probably compare to the relative humidity at 5:00 a.m.?

Thermals are created by the lifting mechanism known as ________.

Natural convection and turbulence are most likely to occur when:

An increase in the environmental lapse rate of an air layer results in the layer becoming:

The attractive forces between the hydrogen atoms in one water molecule and the oxygen atoms in another molecule are known as:

The most important process of cloud formation in the atmosphere is:

The change in the actual air temperature as you go up into the atmosphere is called:

Which of the following will not cause air to become more unstable?

An area that is very cold in winter will probably also have a relatively dry winter.

Thunderstorms are most likely to occur when the atmosphere is absolutely unstable.

On a calm night,the relative humidity a few inches above grass is lower than it is a few feet above the grass.

Introduction to the Atmosphere

Heating Earths Surface and Atmosphere

Temperature

Forms of Condensation and Precipitation

Air Pressure and Winds

Circulation of the Atmosphere

Air Masses

Weather Patterns

Thunderstorms and Tornadoes

Hurricanes

Weather Analysis and Forecasting

Air Pollution

The Changing Climate

World Climates

Optical Phenomena of the Atmosphere

Filters