Weather 2019-20 Question Preview (ID: 22240)
6th Grade Weather.
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As a cold front moves through Clarksville, which set of data would represent the weather change?
a) Barometric Pressure increasing, relative humidity increasing, and temperature decreasing.
b) Barometric pressure decreasing, relative humidity increasing, and temperature decreasing.
c) Barometric pressure increasing, relative humidity decreasing, and temperature staying the same.
d) Barometric pressure staying the same, relative humidity decreasing, and tempearture staying the same.
Between 9 AM and 3 PM if the temperature is decreasing from 72 degrees F to 62 degrees F, the air pressures drops from 30.9 to 29.0 and the wind speed increase from 5km to 17 km what weather should be predicted.
a) freezing rain and snow
b) windy with precipitation
c) calm and clearing skies
d) hot and dry
Between 8 AM and 6 PM cululus clouds are changing to cumulonimbus clouds, air pressure is going from 762 mmHg to 730 mmHg, and relative humidity increases from 50% to 95%. What weather should be predicted?
a) A storm is forming and precipitation is coming soon.
b) The temperture is 80 degrees F
c) The weather is getting worse, but no precipitation is expected.
d) Weather conditions are getting better.
When a cold front is approaching a city the weather is most likely to be
a) dry and mild
b) thunderstorms with cumulonimbus clouds
c) sunny with cirrus clouds
d) overcast with nimbostratus clouds
At 8:00 AM the temperature is 75 degrees F with low humidity and cirrus clouds in the sky. Predict what the weather will most likely be at 4:00 PM.
a) cloudy and rainy
b) dry and mild
c) clear and snowy
d) thunderstorms and hail
Which combination of barometric pressure and temperature would most likely predict snow?
a) falling pressure, 23 degrees C
b) rising pressure, -8 degrees C
c) falling pressure, -5 degrees C
d) rising pressure, 9 degrees C
What conditions would most likely cause precipitation?
a) dew point 60 degrees F, air pressure falling, temperature 62 degrees F
b) dew point 75 degrees F, air pressure rising, temperature 88 degrees F
c) dew point 86 degrees F, air pressure falling, temperature 70 degrees F
d) dew point 90 degrees F, air pressure rising, temperature 99 degrees F
Clouds are dark, low and thick; like a blanket covering the sky. Is this a good day for a picnic? Why?
a) Yes, these cirrus clouds mean good weather
b) No, these are nimbostratus clouds which indicate rain will happen soon
c) Yes, low dark clouds do not indicate precipitation
d) No, rain will not happen today
What kind of weather will cumulonimbus clouds likely bring?
a) sunny
b) light rain
c) warm
d) severe thunderstorms
A cold front moving southeast meets a warm front moving northwest. The fronts remain together for several days. What is this front called and what weather would be likely?
a) occluded, clear skies
b) warm, mild and getting warmer
c) warm, severe thunderstorms
d) stationary, long periods of precipitation
Which best explains how frontal boundaries can lead to severe storms?
a) Cold air flows down the side of a mountain away from the ocean.
b) Cold air remains over an ocean for an extended period of time.
c) Warm air is forced up rapidly by a cold air mass.
d) Warm air rises slowly over a cold air mass.
Warm air ______________________________ and cools, which leads to ____________________.
a) rises, evaporation
b) rises, condensation
c) falls, evaporation
d) falls, condensation
Which conditions most likely cause good weather?
a) Low atmospheric pressure and stratus clouds
b) cumulonimbus clouds and temperature of 80 degrees F
c) dew point of 70 degrees F and temperature 71 degrees F
d) relative humidity of 60% and clear skies
Which of the following is not a type of condensation?
a) dew
b) snow
c) cloud
d) fog
How does a warm front form?
a) Warm air becomes caught between cold air masses.
b) Two air masses meet and stay seperated.
c) Warm air moves over cold air and replaces it.
d) Cold air moves under warm air and pushes it up.
The most likely weather conditions that occur when a stationary front is present over a city are
a) a clear sunny day followed by warm weather
b) cloudy with many days of severe thunderstorms
c) cloudy with many days of wet weather
d) a clear sunny day followed by colder weather
What happens when air reaches its dew point?
a) condensation occurs
b) relative humidity is 100%
c) the humidity decreases
d) clouds form
What kind of weather does a stationary front bring?
a) drizzly rain followed by clear weather
b) severe storms
c) many days of cloudy, wet weather
d) cold, dry weather
Wind moving in two directions over a prairie makes air in the middle spin. This is the beginning of a
a) hurricane
b) thunderstorm
c) hailstorm
d) tornado
Which of the following instruments measures air pressure?
a) barometer
b) psychrometer
c) anemometer
d) thermometer
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