Weather
Practice Test
1.
What is the difference between a tornado and a hurricane?
a.
Tornadoes happen during winter and hurricanes happen in the summer.
b.
They are the same things.
c.
Tornadoes occur over land and hurricanes occur over sea.
d.
Tornadoes occur over sea and hurricanes occur over land.
Hint
2.
What is the cause of the strong winds associated with thunderstorms?
a.
strong updrafts of dry air
b.
rain-cooled air
c.
weak updrafts of warm, moist air
d.
strong updrafts of warm, moist air and sinking, rain-cooled air
Hint
3.
How do isobars help meteorologists predict weather?
a.
They help meteorologists see areas of equal temperature.
b.
They help meteorologists predict dry weather.
c.
They help meteorologists tell how fast wind is blowing by noting how far apart isobars are placed on a weather map.
d.
They help meteorologists tell how fast wind is blowing by noting how closely isobars are placed on a weather map.
Hint
4.
The prefix
cirro
added to the suffix
cumulus, cirrocumulus,
refers to __________.
a.
high, curly clouds
b.
low, puffy, white clouds
c.
middle-level, flat, even clouds
d.
high, puffy, white clouds
Hint
5.
Weather refers to the state of the atmosphere__________.
a.
at a specific temperature
b.
at a specific time and place
c.
over a short period of time
d.
over a long period of time
Hint
6.
An anemometer measures_____.
a.
temperature
b.
humidity
c.
atmospheric pressure
d.
wind speed
Hint
7.
The term
stationary front
describes a front __________.
a.
that is present for a brief amount of time
b.
that changes
c.
that continues forward
d.
that stops advancing
Hint
8.
Meteorologists refer to some floods as flash floods because __________.
a.
they know about them far in advance
b.
they last for extended periods of time
c.
they often occur during lightening storms
d.
there is often little warning before they occur
Hint
9.
What type of clouds form thunderstorms?
a.
nimbus
b.
cumulonimbus
c.
cirrostratus
d.
nimbostratus
Hint
10.
What causes wind?
a.
low pressure
b.
Air moves from regions of high pressure to regions of low pressure.
c.
weather patterns
d.
high pressure
Hint
11.
What does water vapor condense around to form clouds?
a.
small particles like dust and salt
b.
space
c.
snow
d.
air molecules
Hint
12.
What causes low-pressure winds to swirl in a counter-clockwise direction?
a.
precipitation
b.
the natural tendency of winds to blow from low to high pressure
c.
Earth's rotation
d.
Earth's revolution around the Sun
Hint
13.
When two air masses of different densities collide, it's called__________.
a.
a storm
b.
a front
c.
a high pressure zone
d.
a hurricane
Hint
14.
____ is the measure of amounts of moisture in the air compared to the amount needed for saturation at a certain temperature.
a.
Relative humidity
b.
Humidity
c.
Saturation
d.
Air pressure
Hint
15.
Cumulous clouds are associated with __________.
a.
fog
b.
fair weather and rainstorms
c.
sunny weather
d.
approaching storms
Hint
16.
Stratus clouds form __________.
a.
puffy white clouds
b.
fog
c.
fibrous, or curly, clouds
d.
layers of even sheets in the sky
Hint
17.
Of the four main types of precipitation, which refreezes after melting near the ground?
a.
snow
b.
sleet
c.
rain
d.
hail
Hint
18.
Does warm air or cool air hold more humidity?
a.
cool air because air molecules in cool air move fast
b.
cool air because air molecules in cool air move slowly
c.
warm air because air molecules in warm air move slowly
d.
warm air because air molecules in warm air move fast
Hint
19.
How does lightening occur during a storm?
a.
The atmospheric pressure suddenly rises.
b.
Different parts of a cloud become oppositely charged, and current flows between them.
c.
The relative humidity drops.
d.
Converging fronts collide.
Hint
20.
An occluded front occurs between _______ air masses.
a.
an unknown number of
b.
three
c.
four
d.
two
Hint
