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AIR PRESSURE AND WIND - CHAPTER 13

front 1

Standard sea level pressure in millibars is

back 1

1013 mb

front 2

Standard sea level pressure in inches of mercury is

back 2

29.92

front 3

The mercurial barometer was invented by

back 3

Torricelli

front 4

Which of these instruments is NOT used to measure air pressure?

a)mercurial barometer

b)aneriod barometer

c)barograph

d)anemometer

back 4

Anemometer

front 5

An altimeter is an adaptation of the

back 5

aneroid barometer

front 6

The force that generates wind is

back 6

pressure gradient force

front 7

Which of these factors influence the magnitude of the Coriolis force?

a)wind speed

b)latitude

c)wind direction

d)both wind speed and latitude

back 7

both wind speed and latitude

front 8

Lines on a weather map connecting places of equal air pressure are called

back 8

Isobars

front 9

Closely spaced isobars often indicate

back 9

high winds

front 10

A steep pressure gradient

back 10

produces strong winds

front 11

Widely spaced isobars often indicte

back 11

light winds

front 12

The Coriolis effect influences

back 12

light winds

front 13

In the Northern Hemisphere, the winds associated with a low pressure system (cyclone) blow

back 13

COUNTERCLOCKWISE and TOWARD the center

front 14

In the Northern Hemisphere, winds associated with a high pressure system blow

back 14

CLOCKWISE and OUTWARD from the center

front 15

If Earth were not rotating

back 15

air would move directly from high to low pressure

front 16

Upper air winds

back 16

are generally faster than surface winds

front 17

High air pressure systems are usually associated with

a)diverging winds

b)decending air

c)clear weather

d)all of these

back 17

All of these

front 18

Low air pressure systems are usually associated with

back 18

precipitation

front 19

In the Southern Hemisphere, the winds associated with a low pressure system blos

back 19

CLOCKWISE and TOWARD the center

front 20

If "fair" weather were approaching, the pressure tendency would probably be

back 20

Rising

front 21

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

back 21

falling

front 22

Most of the United States is situated in which zone of prevailing winds?

back 22

Westerlies

front 23

Another name for the area of equatorial lows is the

back 23

Horse latitudes

front 24

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

back 24

equatorial low

front 25

The subpolar low (polar front) is

back 25

A zone where the polar easterlies and the westerlies converge

front 26

When are upper air winds faster?

back 26

in WINTER

front 27

A Santa Ana (or Chinook or Foehn) wind is a

back 27

very dry, warm wind flowing down a mountain slope

front 28

A sea breeze usually originates during the

back 28

day and flows toward the land

front 29

A land breeze usually originates during the

back 29

evening and flows toward the water

front 30

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

back 30

Jet streams

front 31

What is the technical name for a high pressure center?

back 31

Anticyclone

front 32

Low pressure systems are usually associated with clear weather

back 32

FALSE

front 33

Cyclones are usually associated with stormy weather

back 33

TRUE

front 34

If the barometer indicated 1020 millibars, air pressure would be considered high

back 34

TRUE

front 35

The Coriolis effect is strongest at the equator and diminishes in strength poleward.

back 35

FALSE

front 36

The pressure gradient force is the driving force behind wind.

back 36

TRUE

front 37

A southwest wind blows toward the northeast.

back 37

TRUE

front 38

An isobar is a line connecting places of equal humidity.

back 38

FALSE

front 39

Anticyclones characteristically have winds blowing out from their centers.

back 39

TRUE

front 40

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

back 40

TRUE

front 41

Horizontal movement of air is called wind.

back 41

TRUE

front 42

A mountain breeze is best developed in the hottest part of the day.

back 42

FALSE

front 43

The region where the trade winds meet is also called the DOLDRUMS

back 43

TRUE

front 44

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

back 44

TRUE

front 45

Closely spaced isobars indicate high wind speeds.

back 45

TRUE

front 46

In the Northern Hemisphere, winds blow clockwise and outward from the center of anticyclones.

back 46

TRUE