Question 1

We feel uncomfortably warm on a muggy day because water molecules are

Accepted Answer

A) evaporating from moist bodies. 
B) condensing on our bodies. 
C) preventing the evaporation from our moist bodies. 
D) jostling about. 
A) evaporating from moist bodies. 
B) condensing on our bodies. 
C) preventing the evaporation from our moist bodies. 
D) jostling about.

Question 2

What happens if nearly saturated air experiences a quick, significant temperature drop?

Accepted Answer

A) Relative humidity drops. 
B) Relative humidity rises. 
C) Condensation occurs. 
D) Outcome depends on the temperature of the air. 
A) Relative humidity drops. 
B) Relative humidity rises. 
C) Condensation occurs. 
D) Outcome depends on the temperature of the air.

Question 3

In orographic lifting, precipitation is associated with the

Accepted Answer

A) windward slope. 
B) the leeward slope. 
C) rain shadow. 
D) Chinook. 
A) windward slope. 
B) the leeward slope. 
C) rain shadow. 
D) Chinook.

Question 4

Hurricanes fit into which category below?

Accepted Answer

A) Cyclones. 
B) Anticyclones. 
C) Gyres. 
D) Cold fronts. 
A) Cyclones. 
B) Anticyclones. 
C) Gyres. 
D) Cold fronts.

Question 5

In the Northern Hemisphere, the winds of a tornado travel at speeds of up to 800 km/h in a

Accepted Answer

A) clockwise direction. 
B) counterclockwise direction. 
A) clockwise direction. 
B) counterclockwise direction.

Question 6

Saturation and condensation are more likely to occur on a

Accepted Answer

A) cold day. 
B) warm day. 
C) windy day. 
D) balmy day. 
A) cold day. 
B) warm day. 
C) windy day. 
D) balmy day.

Question 7

How are air convection cycles generated?

Accepted Answer

Warm air rises, expands and co

Question 8

Warm air rises and cools as it expands. Warm air will continue to rise as long as it is

Accepted Answer

A) denser than the surrounding air. 
B) warmer and less dense than the surrounding air. 
C) warmer and less dense than the air above. 
D) snowing. 
A) denser than the surrounding air. 
B) warmer and less dense than the surrounding air. 
C) warmer and less dense than the air above. 
D) snowing.

Question 9

Which of the following is NOT associated with a cold front?

Accepted Answer

A) Thunderstorms. 
B) Drop in air pressure. 
C) Gradually rising warm air. 
D) Clear skies behind the front. 
A) Thunderstorms. 
B) Drop in air pressure. 
C) Gradually rising warm air. 
D) Clear skies behind the front.

Question 10

Evaporation of raindrops in the atmosphere

Accepted Answer

A) warms the air. 
B) cools the air. 
C) does not happen, raindrops always reach Earth's surface. 
D) is greatest above polar ice caps. 
A) warms the air. 
B) cools the air. 
C) does not happen, raindrops always reach Earth's surface. 
D) is greatest above polar ice caps.

Question 11

As air rises, it

Accepted Answer

A) compresses and warms. 
B) compresses and cools. 
C) expands and warms. 
D) expands and cools. 
A) compresses and warms. 
B) compresses and cools. 
C) expands and warms. 
D) expands and cools.

Question 12

A weather map has many symbols and lines. Isobars are lines that

Accepted Answer

A) depict wind speed and direction. 
B) connect points of equal temperature. 
C) connect points of equal pressure. 
D) none of the above. 
A) depict wind speed and direction. 
B) connect points of equal temperature. 
C) connect points of equal pressure. 
D) none of the above.

Question 13

In a thundercloud the downdrafts are ________ and the updrafts are ________.

Accepted Answer

A) warm, cold 
B) cold, warm 
C) fast, slow 
D) slow, fast 
A) warm, cold 
B) cold, warm 
C) fast, slow 
D) slow, fast

Question 14

Towering cumulonimbus clouds are a common feature in regions where moist unstable air is heated from below. Such clouds are produced by

Accepted Answer

A) convectional lifting. 
B) orographic lifting. 
C) frontal lifting. 
D) none of these 
A) convectional lifting. 
B) orographic lifting. 
C) frontal lifting. 
D) none of these

Question 15

Rainfall associated with an advancing cold front is generally

Accepted Answer

A) drizzly. 
B) heavy with gusty winds. 
C) slow and steady. 
D) light to moderate, with steady mild winds. 
A) drizzly. 
B) heavy with gusty winds. 
C) slow and steady. 
D) light to moderate, with steady mild winds.

Question 16

What is a temperature inversion?

Accepted Answer

A temperature inversion is the condition

Question 17

Water vapor in the air can condense when the air

Accepted Answer

A) cools above its dew point temperature. 
B) temperature increases. 
C) temperature drops below its dew point temperature. 
D) none of the above. 
A) cools above its dew point temperature. 
B) temperature increases. 
C) temperature drops below its dew point temperature. 
D) none of the above.

Question 18

If the relative humidity is 50%, what happens when the temperature drops and the mass of water in the air stays the same?

Accepted Answer

A) Relative humidity drops. 
B) Relative humidity rises. 
C) Relative humidity stays the same. 
D) Outcome depends on the temperature of the air. 
A) Relative humidity drops. 
B) Relative humidity rises. 
C) Relative humidity stays the same. 
D) Outcome depends on the temperature of the air.

Question 19

Which air mass has greater air pressure?

Accepted Answer

A) Warm air. 
B) Cold air. 
C) Adiabatic air. 
D) Expanding air. 
A) Warm air. 
B) Cold air. 
C) Adiabatic air. 
D) Expanding air.

Question 20

The amount of water vapor the air can hold depends on air temperature. At higher temperatures the air

Accepted Answer

A) holds less water vapor. 
B) can hold more water vapor. 
C) is saturated. 
D) holds water vapor at its dew point. 
A) holds less water vapor. 
B) can hold more water vapor. 
C) is saturated. 
D) holds water vapor at its dew point.

Exam 25: Driving Forces of Weather

We feel uncomfortably warm on a muggy day because water molecules are

What happens if nearly saturated air experiences a quick, significant temperature drop?

In orographic lifting, precipitation is associated with the

Hurricanes fit into which category below?

In the Northern Hemisphere, the winds of a tornado travel at speeds of up to 800 km/h in a

Saturation and condensation are more likely to occur on a

How are air convection cycles generated?

Warm air rises and cools as it expands. Warm air will continue to rise as long as it is

Which of the following is NOT associated with a cold front?

Evaporation of raindrops in the atmosphere

As air rises, it

A weather map has many symbols and lines. Isobars are lines that

In a thundercloud the downdrafts are ________ and the updrafts are ________.

Towering cumulonimbus clouds are a common feature in regions where moist unstable air is heated from below. Such clouds are produced by

Rainfall associated with an advancing cold front is generally

What is a temperature inversion?

Water vapor in the air can condense when the air

If the relative humidity is 50%, what happens when the temperature drops and the mass of water in the air stays the same?

Which air mass has greater air pressure?

The amount of water vapor the air can hold depends on air temperature. At higher temperatures the air

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

The Atomic Nucleus and Radioactivity

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Timereading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: the Nature of Science

Filters

In a thundercloud the downdrafts are and the updrafts are .