Question 1

Briefly describe how thunder and lightning develop.

Accepted Answer

Lightning and thunder often accompany th

Question 2

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 3

The lowest temperature on any given day occurs

Accepted Answer

A) around midnight. 
B) around sunset. 
C) around sunrise. 
D) at about 4:00 pm. 
A) around midnight. 
B) around sunset. 
C) around sunrise. 
D) at about 4:00 pm.

Question 4

Air pressure decreases with

Accepted Answer

A) increasing height. 
B) increasing humidity. 
C) increasing temperature. 
D) increasing density. 
A) increasing height. 
B) increasing humidity. 
C) increasing temperature. 
D) increasing density.

Question 5

The downdraft in a thunderstorm is strengthened as

Accepted Answer

A) warm moist air sinks in the thunder cell. 
B) dry air is drawn into the cloud,raindrops evaporate,and the air chills. 
C) cold moist air condenses. 
D) precipitation particles grow and fall. 
A) warm moist air sinks in the thunder cell. 
B) dry air is drawn into the cloud,raindrops evaporate,and the air chills. 
C) cold moist air condenses. 
D) precipitation particles grow and fall.

Question 6

The wind blows in response to

Accepted Answer

A) pressure differences. 
B) Earth's rotation. 
C) temperature differences. 
D) pressure and temperature differences. 
A) pressure differences. 
B) Earth's rotation. 
C) temperature differences. 
D) pressure and temperature differences.

Question 7

The limit at which air contains as much moisture as it can hold for a given temperature is called

Accepted Answer

A) the dew point. 
B) saturation. 
C) the evaporation point. 
D) sublimation point. 
A) the dew point. 
B) saturation. 
C) the evaporation point. 
D) sublimation point.

Question 8

Humidity can be expressed in many different ways-volume,pressure,mass; but humidity is always

Accepted Answer

A) the moisture condensation. 
B) the amount of water vapor in the air. 
C) equal to relative humidity. 
D) maximum amount of water vapor in the air at a given temperature. 
A) the moisture condensation. 
B) the amount of water vapor in the air. 
C) equal to relative humidity. 
D) maximum amount of water vapor in the air at a given temperature.

Question 9

Why does dew form on the ground during clear,calm summer nights?

Accepted Answer

The ground and objects on the ground are

Question 10

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 11

Whenever water evaporates,

Accepted Answer

A) heat is absorbed. 
B) heat is released. 
C) temperature rises. 
D) clouds form. 
A) heat is absorbed. 
B) heat is released. 
C) temperature rises. 
D) clouds form.

Question 12

As rising air cools,its ability to accommodate water vapor decreases so the

Accepted Answer

A) relative humidity of the rising air decreases. 
B) adiabatic rate stabilizes. 
C) air becomes more wet. 
D) relative humidity of the rising air increases. 
A) relative humidity of the rising air decreases. 
B) adiabatic rate stabilizes. 
C) air becomes more wet. 
D) relative humidity of the rising air increases.

Question 13

The birth of a thunderstorm occurs when

Accepted Answer

A) warm,humid air rises in a stable environment. 
B) warm,humid air rises in an unstable environment. 
C) a cold front encounters a warm front. 
D) a maritime polar air mass encounters a maritime tropical air mass. 
A) warm,humid air rises in a stable environment. 
B) warm,humid air rises in an unstable environment. 
C) a cold front encounters a warm front. 
D) a maritime polar air mass encounters a maritime tropical air mass.

Question 14

In the Northern Hemisphere,hurricane winds spiral

Accepted Answer

A) counterclockwise in toward the low pressure zone of the storm's eye. 
B) counterclockwise in toward the high pressure zone of the storm's eye. 
C) clockwise in toward the low pressure zone of the storm's eye. 
D) clockwise in toward the high pressure zone of the storm's eye. 
A) counterclockwise in toward the low pressure zone of the storm's eye. 
B) counterclockwise in toward the high pressure zone of the storm's eye. 
C) clockwise in toward the low pressure zone of the storm's eye. 
D) clockwise in toward the high pressure zone of the storm's eye.

Question 15

When air contains as much water vapor as it can possibly hold for a given temperature,the air is at

Accepted Answer

A) capacity. 
B) optimum threshold. 
C) its evaporation point. 
D) sublimation point. 
A) capacity. 
B) optimum threshold. 
C) its evaporation point. 
D) sublimation point.

Question 16

At a certain elevation,the ________ ,the air becomes saturated and water-vapor molecules ________.

Accepted Answer

A) lifting condensation level; condense to mark the base of cloud formation 
B) equilibrium level; condense to mark the base of cloud formation 
C) lifting condensation level; stabilize and mark the upper limit of cloud formation 
D) equilibrium level; stabilize and mark the upper limit of cloud formation 
A) lifting condensation level; condense to mark the base of cloud formation 
B) equilibrium level; condense to mark the base of cloud formation 
C) lifting condensation level; stabilize and mark the upper limit of cloud formation 
D) equilibrium level; stabilize and mark the upper limit of cloud formation

Question 17

Atmospheric lifting resulting from the convergence of two different air masses is called

Accepted Answer

A) convectional lifting. 
B) orographic lifting. 
C) adiabatic lifting. 
D) frontal lifting. 
A) convectional lifting. 
B) orographic lifting. 
C) adiabatic lifting. 
D) frontal lifting.

Question 18

When water changes from a vapor phase to a liquid phase,it

Accepted Answer

A) loses energy. 
B) gives off energy. 
C) gains energy. 
D) radiates energy. 
A) loses energy. 
B) gives off energy. 
C) gains energy. 
D) radiates energy.

Question 19

An adiabatic process occurs when

Accepted Answer

A) no thermal energy enters or leaves the system. 
B) thermal energy leaving a system is greater than thermal energy entering a system. 
C) thermal energy leaving a system is less than thermal energy entering a system. 
D) none of these 
A) no thermal energy enters or leaves the system. 
B) thermal energy leaving a system is greater than thermal energy entering a system. 
C) thermal energy leaving a system is less than thermal energy entering a system. 
D) none of these

Question 20

Which of the following is an example of adiabatic warming?

Accepted Answer

A) cyclone 
B) Chinook 
C) drought 
D) tornado 
A) cyclone 
B) Chinook 
C) drought 
D) tornado

Exam 25: Driving Forces of Weather

Briefly describe how thunder and lightning develop.

As air rises,it

The lowest temperature on any given day occurs

Air pressure decreases with

The downdraft in a thunderstorm is strengthened as

The wind blows in response to

The limit at which air contains as much moisture as it can hold for a given temperature is called

Humidity can be expressed in many different ways-volume,pressure,mass; but humidity is always

Why does dew form on the ground during clear,calm summer nights?

Water vapor in the air can condense when the air

Whenever water evaporates,

As rising air cools,its ability to accommodate water vapor decreases so the

The birth of a thunderstorm occurs when

In the Northern Hemisphere,hurricane winds spiral

When air contains as much water vapor as it can possibly hold for a given temperature,the air is at

At a certain elevation,the ________ ,the air becomes saturated and water-vapor molecules ________.

Atmospheric lifting resulting from the convergence of two different air masses is called

When water changes from a vapor phase to a liquid phase,it

An adiabatic process occurs when

Which of the following is an example of adiabatic warming?

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 Time - Reading 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

At a certain elevation,the ,the air becomes saturated and water-vapor molecules .