Question 1

If your environmental lapse rate is 17 C/km on a partly cloudy afternoon,then the atmosphere is said to be:

Accepted Answer

A) absolutely unstable. 
B) absolutely stable. 
C) conditionally stable. 
A) absolutely unstable. 
B) absolutely stable. 
C) conditionally stable. A

Question 2

The capacity of the air to hold water vapor:

Accepted Answer

A) increases with a decrease in temperature. 
B) decreases with an increase in temperature. 
C) increases with an increase in temperature. 
D) increases with an increase in pressure. 
A) increases with a decrease in temperature. 
B) decreases with an increase in temperature. 
C) increases with an increase in temperature. 
D) increases with an increase in pressure. C

Question 3

Evaporation is a cooling process.

Accepted Answer

A) True 
 B)False  True

Question 4

A convergence of winds near the surface is associated with cloud production because it:

Accepted Answer

A) increases the lapse rate. 
B) creates a vortex or spiral pattern. 
C) increases the wind speed. 
D) increases the dew point. 
E) forces the air to rise. 
A) increases the lapse rate. 
B) creates a vortex or spiral pattern. 
C) increases the wind speed. 
D) increases the dew point. 
E) forces the air to rise.

Question 5

The stability of an air layer refers to its:

Accepted Answer

A) tendency to either sustain or suppress upward vertical motions. 
B) albedo. 
C) overall density. 
D) pressure as measured at its base. 
A) tendency to either sustain or suppress upward vertical motions. 
B) albedo. 
C) overall density. 
D) pressure as measured at its base.

Question 6

The buoyancy of a rising air parcel is greatly affected by:

Accepted Answer

A) heat released if water vapor condenses. 
B) absorption of solar radiation. 
C) air pressure. 
D) convergence of the parcel. 
E) wind speed. 
A) heat released if water vapor condenses. 
B) absorption of solar radiation. 
C) air pressure. 
D) convergence of the parcel. 
E) wind speed.

Question 7

The absolute humidity of the air is expressed as a percent.

Accepted Answer

A) True 
 B)False

Question 8

As liquid water is evaporated into the atmosphere,heat energy is:

Accepted Answer

A) absorbed by the remaining liquid. 
B) given off by the water vapor. 
C) released by the evaporating water. 
D) absorbed by the evaporating water. 
E) absorbed by the surrounding air. 
A) absorbed by the remaining liquid. 
B) given off by the water vapor. 
C) released by the evaporating water. 
D) absorbed by the evaporating water. 
E) absorbed by the surrounding air.

Question 9

Why does a rising air parcel cool off?

Accepted Answer

A) Its relative humidity is less than 100 percent. 
B) It loses heat to its surroundings. 
C) It loses energy by radiation. 
D) It expands. 
E) It is unstable. 
A) Its relative humidity is less than 100 percent. 
B) It loses heat to its surroundings. 
C) It loses energy by radiation. 
D) It expands. 
E) It is unstable.

Question 10

When air sinks,it is compressed and warmed.

Accepted Answer

A) True 
 B)False

Question 11

The property which primarily controls how much water can be present as a gas is:

Accepted Answer

A) number of particulates present. 
B) availability of latent heat. 
C) temperature of the air. 
D) water's specific heat. 
E) amount of dry air gases present. 
A) number of particulates present. 
B) availability of latent heat. 
C) temperature of the air. 
D) water's specific heat. 
E) amount of dry air gases present.

Question 12

In your own words,describe the process that causes a cold glass of ice water to 'sweat'.Include a discussion of the flow of energy through this system,and use appropriate vocabulary.

Accepted Answer

Heat will always flow from where there i

Question 13

As the temperature of air is reduced to its dew point,which of these is most likely to occur?

Accepted Answer

A) freezing 
B) condensation 
C) melting 
D) supercooling 
E) evaporation 
A) freezing 
B) condensation 
C) melting 
D) supercooling 
E) evaporation

Question 14

During the process of adiabatic cooling,the temperature decreases because the air has:

Accepted Answer

A) been compressed. 
B) lost heat to the colder air at higher altitudes. 
C) lost some of its water vapor. 
D) expanded to a larger volume. 
E) emitted infrared radiation. 
A) been compressed. 
B) lost heat to the colder air at higher altitudes. 
C) lost some of its water vapor. 
D) expanded to a larger volume. 
E) emitted infrared radiation.

Question 15

In which phase do water molecules have the lowest kinetic energy?

Accepted Answer

A) vapor 
B) liquid 
C) ice 
D) It has the same kinetic energy in all three phases. 
A) vapor 
B) liquid 
C) ice 
D) It has the same kinetic energy in all three phases.

Question 16

The temperature of rising air parcels ________ as they move upward.

Accepted Answer

A) decreases 
B) increases 
C) remains constant 
D) may either increase or decrease 
A) decreases 
B) increases 
C) remains constant 
D) may either increase or decrease

Question 17

If the mixing ratio remains unchanged and the temperature drops,the relative humidity will increase.

Accepted Answer

A) True 
 B)False

Question 18

Clear skies are associated with subsidence or sinking motion.

Accepted Answer

A) True 
 B)False

Question 19

The formation of frost is an example of deposition.

Accepted Answer

A) True 
 B)False

Question 20

Relative humidity levels are always higher in St.Louis,MO than Anchorage,AK.

Accepted Answer

A) True 
 B)False

If your environmental lapse rate is 17 C/km on a partly cloudy afternoon,then the atmosphere is said to be:

The capacity of the air to hold water vapor:

Evaporation is a cooling process.

A convergence of winds near the surface is associated with cloud production because it:

The stability of an air layer refers to its:

The buoyancy of a rising air parcel is greatly affected by:

The absolute humidity of the air is expressed as a percent.

As liquid water is evaporated into the atmosphere,heat energy is:

Why does a rising air parcel cool off?

When air sinks,it is compressed and warmed.

The property which primarily controls how much water can be present as a gas is:

In your own words,describe the process that causes a cold glass of ice water to 'sweat'.Include a discussion of the flow of energy through this system,and use appropriate vocabulary.

As the temperature of air is reduced to its dew point,which of these is most likely to occur?

During the process of adiabatic cooling,the temperature decreases because the air has:

In which phase do water molecules have the lowest kinetic energy?

The temperature of rising air parcels ________ as they move upward.

If the mixing ratio remains unchanged and the temperature drops,the relative humidity will increase.

Clear skies are associated with subsidence or sinking motion.

The formation of frost is an example of deposition.

Relative humidity levels are always higher in St.Louis,MO than Anchorage,AK.

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

If your environmental lapse rate is 17 C/km on a partly cloudy afternoon,then the atmosphere is said to be:

The capacity of the air to hold water vapor:

Evaporation is a cooling process.

A convergence of winds near the surface is associated with cloud production because it:

The stability of an air layer refers to its:

The buoyancy of a rising air parcel is greatly affected by:

The absolute humidity of the air is expressed as a percent.

As liquid water is evaporated into the atmosphere,heat energy is:

Why does a rising air parcel cool off?

When air sinks,it is compressed and warmed.

The property which primarily controls how much water can be present as a gas is:

In your own words,describe the process that causes a cold glass of ice water to 'sweat'.Include a discussion of the flow of energy through this system,and use appropriate vocabulary.

As the temperature of air is reduced to its dew point,which of these is most likely to occur?

During the process of adiabatic cooling,the temperature decreases because the air has:

In which phase do water molecules have the lowest kinetic energy?

The temperature of rising air parcels ________ as they move upward.

If the mixing ratio remains unchanged and the temperature drops,the relative humidity will increase.

Clear skies are associated with subsidence or sinking motion.

The formation of frost is an example of deposition.

Relative humidity levels are always higher in St.Louis,MO than Anchorage,AK.

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