Q. Which weather change is most likely indicated by rapidly falling air pressure?
answer choices
Humidity is decreasing.
Temperature is decreasing.
Skies are clearing.
A storm is approaching.
Question 5
SURVEY
120 seconds
Q. Weather-station measurements indicate that the dewpoint temperature and air temperature are getting farther apart and that air pressure is rising. Which type of weather is most likely arriving at the station?
answer choices
a snowstorm
a warm front
cool, dry air
maritime tropical air
Question 6
SURVEY
120 seconds
Q. The highest surface wind speeds occur when there is a
answer choices
4-millibar air-pressure difference between two nearby locations
4-millibar air-pressure difference between two distant locations
20-millibar air-pressure difference between two nearby locations
20-millibar air-pressure difference between two distant locations
Question 7
SURVEY
120 seconds
Q. Air pressure is usually highest when the air is
answer choices
cool and humid
cool and dry
warm and humid
warm and dry
Question 8
SURVEY
30 seconds
Q. Earth’s surface winds generally blow from regions of higher
answer choices
air temperature toward regions of lower air temperature
air pressure toward regions of lower air pressure
latitudes toward regions of lower latitudes
elevations toward regions of lower elevations
Question 9
SURVEY
120 seconds
Q. What is the relative humidity when the dry-bulb temperature is 16°C and the wet-bulb temperature is 14°C?
answer choices
90%
80%
14%
13%
Question 10
SURVEY
120 seconds
Q. A low-pressure system in the Northern Hemisphere has a surface air-circulation pattern that is
answer choices
clockwise and away from the center
clockwise and toward the center
counterclockwise and away from the center
counterclockwise and toward the center
Question 11
SURVEY
120 seconds
Q. The weather characteristics of air masses result primarily from their
answer choices
geographic origin
size and shape
rate of movement
direction of movement
Question 12
SURVEY
120 seconds
Q. Which type of air mass most likely has high humidity and high temperature?
answer choices
cP
cT
mT
mP
Question 13
SURVEY
120 seconds
Q. An air mass entering Alaska from the northern Pacific Ocean would most likely be labeled on a weather map as
answer choices
cP
cT
mP
mT
Question 14
SURVEY
120 seconds
Q. The dewpoint is 15°C. What is the wet-bulb temperature on a sling psychrometer if the dry-bulb temperature is 18°C?
answer choices
16°C
2°C
3°C
20°C
Question 15
SURVEY
120 seconds
Q. If the air temperature is 20°C and the relative humidity is 58%, what is the dewpoint?
answer choices
5°C
12°C
15°C
38°C
Question 16
SURVEY
120 seconds
Q. Clouds most likely form as a result of
answer choices
moist air rising, compressing, and warming
moist air rising, expanding, and cooling
dry air rising, compressing, and warming
dry air rising, expanding, and cooling
Question 17
SURVEY
120 seconds
Q. In which direction do the surface winds blow around a high-pressure system in the Northern Hemisphere?
answer choices
clockwise and inward
clockwise and outward
counterclockwise and inward
counterclockwise and outward
Question 18
SURVEY
120 seconds
Q. Which substance is a form of precipitation?
answer choices
frost
hail
fog
dew
Question 19
SURVEY
120 seconds
Q. What type of storm front if this?
answer choices
Warm Front
Cold Front
Stationary Front
Occluded Front
Question 20
SURVEY
120 seconds
Q. What type of storm front is this?
answer choices
Warm Front
Cold Front
Occluded Front
Stationary Front
Question 21
SURVEY
120 seconds
Q. What type of storm front is this?
answer choices
Warm Front
Cold Front
Occluded Front
Stationary Front
Question 22
SURVEY
120 seconds
Q. What direction is the cold front moving on the map?
answer choices
Southwest
Northwest
Southeast
Northeast
Question 23
SURVEY
120 seconds
Q. What direction is the warm front moving on the map?
answer choices
North
South
East
West
Question 24
SURVEY
120 seconds
Q. When two different air masses collide...
answer choices
A front forms
They casually become one
A new planet evolves
Dinosaurs become extinct
Question 25
SURVEY
120 seconds
Q. Where does it rain relative to the warm front?
answer choices
On top of the front
Behind the front
Ahead of the front
Question 26
SURVEY
30 seconds
Q. A cold front usually brings what kind of weather?
answer choices
snow
sunny and fair
rain and/or thunderstorms
cool and dry
Question 27
SURVEY
30 seconds
Q. When a cold front or a warm front stays in place for several days without invading another front, it is called a ______.
answer choices
stationary front
cold front
occluded front
warm front
Question 28
SURVEY
180 seconds
Q. The weather map below shows isobars labeled in millibars. Points A, B, C, and D are locations on Earth’s surface. Which location is probably experiencing the highest wind speeds?
answer choices
A
B
C
D
Question 29
SURVEY
180 seconds
Q. The winds shift from southwest to northwest as heavy rains and hail begin to fall in Albany, New York. These changes are most likely caused by the arrival of
answer choices
an mT air mass
a cT air mass
a cold front
a warm front
Question 30
SURVEY
60 seconds
Q. A dry-bulb temperature of 30°C and a wet-bulb temperature of 29°C were recorded at a weather station. What are the relative humidity and the most likely weather conditions?
answer choices
Relative humidity is 29% with clear skies.
Relative humidity is 29% with a good chance of snow.
elative humidity is 93% with clear skies.
Relative humidity is 93% with a good chance of rain.
Question 31
SURVEY
60 seconds
Q. Which sequence of events affecting moist air within Earth’s atmosphere causes cloud formation?
answer choices
rising → expanding → cooling → condensation
rising → contracting → warming → evaporation
sinking → expanding → warming → condensation
sinking → contracting → cooling → evaporation
Question 32
SURVEY
60 seconds
Q. Most tornadoes in the Northern Hemisphere are best described as violently rotating columns of air surrounded by
answer choices
clockwise surface winds moving toward the columns
clockwise surface winds moving away from the columns
counterclockwise surface winds moving toward the columns
counterclockwise surface winds moving away from the columns
Question 33
SURVEY
30 seconds
Q. Most scientists infer that increasing levels of carbon dioxide in Earth’s atmosphere are contributing to
answer choices
decreased thickness of the troposphere
depletion of ozone
increased absorption of ultraviolet radiation
increased global temperatures
Question 34
SURVEY
60 seconds
Q. In which two temperature zones of the atmosphere does the temperature increase with increasing altitude?
answer choices
troposphere and stratosphere
troposphere and mesosphere
stratosphere and thermosphere
mesosphere and thermosphere
Question 35
SURVEY
60 seconds
Q. Cloud formation is likely to occur in rising airbecause rising air
answer choices
expands and cools
expands and warms
contracts and warms
contracts and cools
Question 36
SURVEY
30 seconds
Q. Which weather instrument is useful in measuring relative humidity?
answer choices
barometer
anemometer
psychrometer
wind vane
Question 37
SURVEY
30 seconds
Q. What is the wind speed at this weather station
answer choices
2 knots
10 knots
20 knots
25 knots
Question 38
SURVEY
30 seconds
Q. What is the dew point at this station?
answer choices
75 degrees
61 degrees
987 degrees
11 degrees
Question 39
SURVEY
120 seconds
Q. Where is the ozone layer located?
answer choices
Thermosphere
Troposphere
Stratosphere
Mesosphere
Question 40
SURVEY
30 seconds
Q. They are highest clouds in the sky. They look curly, white and feathery. Usually mean good weather.
answer choices
Cumulus
Cumulonimbus
Cirrus
Stratus
Question 41
SURVEY
30 seconds
Q. What is the barometric pressure at this station?