WorksheetsUnit 3: Air Pressure and Weather Patterns
Total questions: 40
Worksheet time: 20mins
The force exerted by the weight of the air above is called _____________________.
Air Pressure
Convergence
The Coriolis Effect
Divergence
In which direction is air pressure exerted?
upward
downward
in all directions
sideways
Which of the following instruments is used to measure air pressure?
anemometer
sling psychrometer
barometer
all of these measure air pressure
Standard sea level pressure in millibars is __________.
1013.2
750.1
1000
980.5
What is the ultimate energy source for most wind?
Earth's rotation
Solar radiation
Earth's revolution
Tides
Which force generates winds?
Friction
Gravity
The Coriolis Effect
Pressure differences
A steep pressure gradient ______________________________.
would be depicted by widely spaced isobar lines
produces strong winds
is only possible in the tropics
produces light winds
High-altitude, high velocity “rivers” of air are called __________________.
cyclones
anticyclones
jet streams
tornadoes
The Coriolis Effect influences _____________________.
wind direction
wind speed
both wind speed and direction
neither wind speed nor direction
The deflection of wind due to the Coriolis Effect is strongest at ____________________.
the equator
midnight
the midlattitudes
the poles
In the figure, the lines on the weather map that connect points of equal pressure are __________.
Isolines
Isobars
Isotherms
Contour lines
In the figure, closely spaced lines indicate ________________.
light winds
cyclonic winds
variable winds
high winds
In the northern hemisphere, winds associated with a low pressure system blow _________.
clockwise outward from the center
clockwise toward the center
counterclockwise toward the center
counterclockwise outward from the center
High Pressure systems are usually associated with which of the following?
Descending (falling) air
Clear weather
Relatively dry conditions
All of these are associated with high pressure systems
In the northern hemisphere, winds associated with a high pressure system blow ________.
clockwise outward from the center
clockwise toward the center
counterclockwise toward the center
counterclockwise outward from the center
Fast-moving currents of air that occur above the friction layer are called ______________.
wind trains
Chinooks
mesocyclones
jet streams
Air rises (converges) in the center of a(n) ___________.
anticyclone
jet stream
air masses
cyclone
Winds are labeled and described according to which of the following?
The direction where they are blowing toward
The direction from which they blow
The region in which they can be found
None of these responses
Which map, represented in the picture, best represents the surface wind pattern associated with high pressure and low pressure systems in the Northern hemisphere?
1
2
3
4
Near the equator, rising air is associated with a pressure zone known as the ____________.
equatorial high
equatorial low
tropical high
tropical low
Land and sea breezes are examples of ________________________.
global winds
trade winds
local winds
jet streams
In general, the movement of low and high pressure centers across the United States is from __________.
north to south
south to north
east to west
west to east
Variations in air pressure from place to place are the principle cause of ________________.
snow
wind
rain
clouds
In the figure, which location most likely recorded the highest wind speed?
A
B
C
D
The air pressure recorded at point D was most likely _______.
1006 mb
1010 mb
1014 mb
1016 mb
Which two properties characterize an air mass?
temperature and location
temperature and moisture
temperature and pressure
moisture and pressure
Maritime air masses form ________________.
over land
over water
only in winter
only in summer
The boundary that separates two air masses with contrasting temperatures is called a(n) _____________.
front
anticyclone
cyclone
storm
On a weather map, which type of front is shown by a line with red, semi circles on one side?
warm
cold
stationary
occluded
What type of front usually produces several days of light to moderate precipitation?
Stationary front
Warm front
Occluded front
Cold front
What type of front usually produces violent weather when passing through?
Warm front
Cold front
Both warm and cold front
Neither warm nor cold front
Which type of front is located between Buffalo and Detroit?
Stationary
Warm
Occluded
Cold
1
2
3
4
Which letter on the map of North America
represents a cP (continental Polar) air mass?
A
B
C
D
E
Which air mass on the figure represents an air mass that is warm in
temperature and contains a lot of moisture?
A
B
C
D
E
What were the barometric pressure and winds at the location shown at the time of the observation?
1002.3 and winds from the Southeast
1002.3 and winds from the Northwest
902.3 and winds from the Northwest
902.3 and winds from the Southeast
What is the temperature for the model shown?
65
23
10
75
What is the dew point for the model shown?
65
75
23
10
In the figure, what
type of local wind is being
represented? (Hint: it is daytime)
sea breeze
land breeze
valley breeze
mountain breeze
In the figure to the right, where
would you see an area of
high pressure?
over land
over water
in-between the land and water
there would be an area of high pressure over both land and water
