Question 1

The Amargosa Valley in eastern California desert often experiences a cold evening wind that blows downvalley.Which of the following might explain this phenomenon?

Accepted Answer

A) Daytime heating causes a local low pressure that causes air to rush in by evening. 
B) Moist Pacific air rising over the Sierra Nevada Mountains produces mountain precipitation,and as this air spills off the eastern escarpment,it forms the valley wind. 
C) Night time cooling upvalley produces a cold,unstable air mass that is funneled down the valley to produce a valley wind. 
D) It is a nighttime land breeze and there should be an accompanying daytime seabreeze up valley. 
A) Daytime heating causes a local low pressure that causes air to rush in by evening. 
B) Moist Pacific air rising over the Sierra Nevada Mountains produces mountain precipitation,and as this air spills off the eastern escarpment,it forms the valley wind. 
C) Night time cooling upvalley produces a cold,unstable air mass that is funneled down the valley to produce a valley wind. 
D) It is a nighttime land breeze and there should be an accompanying daytime seabreeze up valley.

Question 2

Inches of mercury is something that would only be used in America.Elsewhere in the world,the mercury height would be in millimeters,or about 760mm (76cm).Mercury has a density of about 13.56 g/cm3,or in other words,each cm of mercury weighs about 13,300 dynes.So 760mm of mercury weighs 1,013,000 dynes.1 mb is 1 dyne/cm2,so what is the air pressure in mb?

Accepted Answer

A) 760 mb 
B) 1,000,000 mb 
C) 1013 mb 
D) 1)013 mb 
A) 760 mb 
B) 1,000,000 mb 
C) 1013 mb 
D) 1)013 mb

Question 3

Why are coastal and mountainous regions often much more windy than other locations at similar latitudes? Also,from this and earlier chapters on meteorology,are there other weather characteristics that are perhaps unique or different for these areas?

Accepted Answer

In coastal areas during the warm summer

Question 4

The existence of jet streams was first determined by Ben Franklin as a result of his kite experiments.

Accepted Answer

A) True 
 B)False

Question 5

A low pressure center is called a(n)________.

Accepted Answer

The answer of A low pressure center is called a(n)________....

Question 6

If you live in southwestern North America and are experiencing drought conditions,what do you hope will happen?

Accepted Answer

A) A La Niña period will begin. 
B) An El Niño period will begin. 
C) Conditions will return to a normal,with neither La Niña nor El Niño. 
D) The temperatures will decrease in the eastern equatorial Pacific. 
A) A La Niña period will begin. 
B) An El Niño period will begin. 
C) Conditions will return to a normal,with neither La Niña nor El Niño. 
D) The temperatures will decrease in the eastern equatorial Pacific.

Question 7

On the weather map below,describe the wind pattern and the relationship between the winds and isobars.

Accepted Answer

The winds are blowing away from the high

Question 8

In the Southern Hemisphere,the winds associated with a low pressure system blow ________.

Accepted Answer

A) clockwise and toward the center 
B) counterclockwise and toward the center 
C) clockwise and outward from the center 
D) counterclockwise and outward from the center 
A) clockwise and toward the center 
B) counterclockwise and toward the center 
C) clockwise and outward from the center 
D) counterclockwise and outward from the center

Question 9

This pressure zone is associated with abundant precipitation and warm temperatures.

Accepted Answer

A) subtropical high 
B) equatorial low 
C) subpolar low 
D) polar high 
A) subtropical high 
B) equatorial low 
C) subpolar low 
D) polar high

Question 10

Most of the people living in the United States are under the influence of the wind belt known as the westerlies.

Accepted Answer

A) True 
 B)False

Question 11

Fast moving currents of air found near the top of the troposphere are called ________.

Accepted Answer

The answer of Fast moving currents of air found near...

Question 12

A surface low pressure system will not strengthen unless there is high pressure aloft.

Accepted Answer

A) True 
 B)False

Question 13

Warm winds that move down the leeward side of mountains are known as ________.

Accepted Answer

chinook,fo

Question 14

Upper air winds ________.

Accepted Answer

A) are generally faster than surface winds 
B) are unaffected by the Coriolis force 
C) are greatly influenced by friction 
D) both A and B 
A) are generally faster than surface winds 
B) are unaffected by the Coriolis force 
C) are greatly influenced by friction 
D) both A and B

Question 15

If stormy weather were approaching,the pressure tendency would probably be ________.

Accepted Answer

A) steady 
B) rising 
C) falling 
D) none of these 
A) steady 
B) rising 
C) falling 
D) none of these

Question 16

Closely spaced isobars indicate ________.

Accepted Answer

A) high pressure gradient and high winds 
B) high pressure gradient and likely gusty winds 
C) geostrophic conditions 
D) low pressure gradient and weak gusty winds 
A) high pressure gradient and high winds 
B) high pressure gradient and likely gusty winds 
C) geostrophic conditions 
D) low pressure gradient and weak gusty winds

Question 17

Why is the Santa Ana wind a danger signal in southern California?

Accepted Answer

A) It is a cold,dry winter wind that brings danger of hypothermia to people like the homeless living on the streets. 
B) It drives people crazy with the howling winds,so crime goes up. 
C) It is a warm,humid wind from Mexico that signals El Niño conditions and high potential for flooding. 
D) It is a warm,dry wind that can quickly dry out brushlands and spread fires. 
A) It is a cold,dry winter wind that brings danger of hypothermia to people like the homeless living on the streets. 
B) It drives people crazy with the howling winds,so crime goes up. 
C) It is a warm,humid wind from Mexico that signals El Niño conditions and high potential for flooding. 
D) It is a warm,dry wind that can quickly dry out brushlands and spread fires.

Question 18

The ultimate cause of a sea breeze is the unequal heating of land and water.

Accepted Answer

A) True 
 B)False

Question 19

Standard sea level pressure in inches of mercury is ________.

Accepted Answer

A) 7)52 inches 
B) 14.70 inches 
C) 28.70 inches 
D) 29.92 inches 
A) 7)52 inches 
B) 14.70 inches 
C) 28.70 inches 
D) 29.92 inches

Question 20

What is the Southern Oscillation?

Accepted Answer

A) the intermittent switch from El Niño to La Niña conditions in the equatorial Pacific 
B) the periodic intense cyclonic storms from Antarctica 
C) the weather pattern that changes tropical cyclone activity in the southern ocean 
D) the 10-year cycle in winter storm activity in the temperate zone of the Southern Hemisphere 
A) the intermittent switch from El Niño to La Niña conditions in the equatorial Pacific 
B) the periodic intense cyclonic storms from Antarctica 
C) the weather pattern that changes tropical cyclone activity in the southern ocean 
D) the 10-year cycle in winter storm activity in the temperate zone of the Southern Hemisphere

Exam 18: Air Pressure and Wind

The Amargosa Valley in eastern California desert often experiences a cold evening wind that blows downvalley.Which of the following might explain this phenomenon?

Why are coastal and mountainous regions often much more windy than other locations at similar latitudes? Also,from this and earlier chapters on meteorology,are there other weather characteristics that are perhaps unique or different for these areas?

The existence of jet streams was first determined by Ben Franklin as a result of his kite experiments.

A low pressure center is called a(n)________.

If you live in southwestern North America and are experiencing drought conditions,what do you hope will happen?

On the weather map below,describe the wind pattern and the relationship between the winds and isobars.

In the Southern Hemisphere,the winds associated with a low pressure system blow ________.

This pressure zone is associated with abundant precipitation and warm temperatures.

Most of the people living in the United States are under the influence of the wind belt known as the westerlies.

Fast moving currents of air found near the top of the troposphere are called ________.

A surface low pressure system will not strengthen unless there is high pressure aloft.

Warm winds that move down the leeward side of mountains are known as ________.

Upper air winds ________.

If stormy weather were approaching,the pressure tendency would probably be ________.

Closely spaced isobars indicate ________.

Why is the Santa Ana wind a danger signal in southern California?

The ultimate cause of a sea breeze is the unequal heating of land and water.

Standard sea level pressure in inches of mercury is ________.

What is the Southern Oscillation?

Introduction to Earth Science

Matter and Minerals

Rocks: Materials of the Solid Earth

Weathering, soil, and Mass Wasting

Running Water and Groundwater

Glaciers, deserts, and Wind

Plate Tectonics: a Scientific Revolution Unfolds

Earthquakes and Earths Interior

Volcanoes and Other Igneous Activity

Crustal Deformation and Mountain Building

Geologic Time

Earths Evolution Through Geologic Time

The Ocean Floor

Ocean Water and Ocean Life

The Dynamic Ocean

The Atmosphere: Composition,structure,and Temperature

Moisture, clouds, and Precipitation

Weather Patterns and Severe Weather

World Climates and Global Climate Change

Origin of Modern Astronomy

Touring Our Solar System

Light,astronomical Observations,and the Sun

Beyond Our Solar System

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