AIR PRESSURE AND WIND - CHAPTER 13

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1

Standard sea level pressure in millibars is

1013 mb

2

Standard sea level pressure in inches of mercury is

29.92

3

The mercurial barometer was invented by

Torricelli

4

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

a)mercurial barometer

b)aneriod barometer

c)barograph

d)anemometer

Anemometer

5

An altimeter is an adaptation of the

aneroid barometer

6

The force that generates wind is

pressure gradient force

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

both wind speed and latitude

8

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

Isobars

9

Closely spaced isobars often indicate

high winds

10

A steep pressure gradient

produces strong winds

11

Widely spaced isobars often indicte

light winds

12

The Coriolis effect influences

light winds

13

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

COUNTERCLOCKWISE and TOWARD the center

14

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

CLOCKWISE and OUTWARD from the center

15

If Earth were not rotating

air would move directly from high to low pressure

16

Upper air winds

are generally faster than surface winds

17

High air pressure systems are usually associated with

a)diverging winds

b)decending air

c)clear weather

d)all of these

All of these

18

Low air pressure systems are usually associated with

precipitation

19

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

CLOCKWISE and TOWARD the center

20

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

Rising

21

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

falling

22

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

Westerlies

23

Another name for the area of equatorial lows is the

Horse latitudes

24

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

equatorial low

25

The subpolar low (polar front) is

A zone where the polar easterlies and the westerlies converge

26

When are upper air winds faster?

in WINTER

27

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

very dry, warm wind flowing down a mountain slope

28

A sea breeze usually originates during the

day and flows toward the land

29

A land breeze usually originates during the

evening and flows toward the water

30

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

Jet streams

31

What is the technical name for a high pressure center?

Anticyclone

32

Low pressure systems are usually associated with clear weather

FALSE

33

Cyclones are usually associated with stormy weather

TRUE

34

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

TRUE

35

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

FALSE

36

The pressure gradient force is the driving force behind wind.

TRUE

37

A southwest wind blows toward the northeast.

TRUE

38

An isobar is a line connecting places of equal humidity.

FALSE

39

Anticyclones characteristically have winds blowing out from their centers.

TRUE

40

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

TRUE

41

Horizontal movement of air is called wind.

TRUE

42

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

FALSE

43

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

TRUE

44

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

TRUE

45

Closely spaced isobars indicate high wind speeds.

TRUE

46

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

TRUE


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