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Homework #4 (Prevailing Winds)

Total questions: 27

Worksheet time: 54mins

Name
Class
Date
1.
I am a fast-moving ribbon of AIR that moves from west to east in the Northern Hemisphere around the Earth.
a)
California Current
b)
Gulf Stream
c)
Jet Stream
d)
Atlantic Ocean
2.

The Coriolis effect causes ___________.

a)

the Earth to rotate on its axis

b)

earthquakes

c)

global winds to move in a curved path instead of a straight line

d)

the Earth to revolve around the sun

3.

Which of the following best describes the surface wind circulation around the center of a High pressure system (as seen from above)?

a)

counterclockwise and spiraling outward

b)

counterclockwise and spiraling inward

c)

clockwise and spiraling outward

d)

clockwise and spiraling inward

4.

Which of the following best describes the surface wind circulation around the center of a Low pressure system (as seen from above)?

a)

counterclockwise and spiraling outward

b)

counterclockwise and spiraling inward

c)

clockwise and spiraling outward

d)

clockwise and spiraling inward

5.

In a High pressure system, air flows

a)

downward and outward in a clockwise spiral.

b)

downward and inward in a counter-clockwise spiral.

c)

upward and outward in a clockwise spiral.

d)

upward and inward in a counter-clockwise spiral

6.

In a Low pressure system, air flows

a)

downward and outward in a clockwise spiral

b)

downward and inward in a counter-clockwise spiral.

c)

upward and outward in a clockwise spiral

d)

upward and inward in a counter-clockwise spiral.

7.

Descending air in a High leads to _______ weather and ascending air in a Low tends to make weather _________.

a)

fair, stormy

b)

stormy, fair

c)

fair, fair

d)

stormy, stormy

8.
________is the instrument used to measure air pressure.
a)
barometer
b)
thermometer
c)
mercury
d)
watch
9.
Low pressure will usually bring what kind of weather?
a)
Sunny
b)
Calm
c)
Stormy
10.
A _____ is a large, swirling, low-pressure system that forms over the Atlantic Ocean.
a)
blizzard
b)
cold front
c)
tornado 
d)
hurricane
11.
Which type of pressure system is pictured?
a)
high
b)
low
c)
medium
d)
none
12.
Which type of pressure system is pictured?
a)
high
b)
low
c)
medium
d)
none
13.
In what direction do winds always blow?
a)
From areas of high pressure to areas of low pressure
b)
From areas of low pressure to areas of high pressure
14.
In _________ pressure systems, air sinks:
a)
high
b)
low
c)
medium
d)
none
15.

Wind in the Northern hemisphere turn to the ______________ because of the Coriolis Effect.

a)

right

b)

left

c)

top

d)

south

16.

What is the ultimate energy source for most wind?

a)

Moon

b)

Sun

c)

Ocean

d)

Waves

17.

Lines on a map that connect places of equal air pressure are called

a)

Isotherms

b)

Isobars

c)

Isotemps

d)

Isocream

18.

Where does the air move in an ANTICYCLONE?

a)

Upwards

b)

Downwards

19.

Where does the air move in a CYCLONE?

a)

Upwards

b)

Downwards

20.
What is the purpose of an isobar?
a)
to show the areas that have the different air pressure.
b)
to show the areas that have the same air pressure.
21.

Is this showing a high pressure area or a low pressure area?

a)

high pressure

b)

low pressure

22.

Low pressure is usually associated with what type of weather

a)

clear, fair

b)

cloudy, rainy

c)

bright blue skies

d)

sunshine

23.
Which system results in drier, fairer weather?
a)
high pressure
b)
low pressure
c)
hurricane
d)
weather system
24.
Which type of image is this? 
a)
Radar
b)
Satellite
c)
Isotherm
d)
Isobar
25.

Which diagram illustrates a LOW pressure system?

a)

A

b)

B

26.

In a low pressure system, which direction does the air flow? (use the picture of the hurricane to help)

a)

clockwise

b)

counterclockwise

27.
78% of earth's atmosphere is composed of ______________.
a)
methane
b)
oxygen
c)
argon
d)
nitrogen

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