High/Low Pressure Systems
A strong low-pressure weather system forms off the coast and moves toward a land area. Which weather conditions will result from the low-pressure system?
a. clear, sunny skies and calm winds
b. mostly sunny skies with little to no precipitation
c. partly cloudy skies with little precipitation and light winds
d. mostly cloudy skies with moderate to heavy precipitation and strong winds
d. mostly cloudy skies with moderate to heavy precipitation and strong winds
The weather forecast indicates that a warm front will be moving into the area in the next 24 hours. Which type of weather will most likely result?
(cloudy or clear skies, high or low temp, rainy or dry weather?)
cloudy skies and rainy weather
Which cases North Carolina to experience an increase in winter precipitation?
a. El Nino
b. La Nina
c. trade winds
d. prevailing westerlies
a. El Nino
A cloud seen beneath a bridge is a form of water called....
a. snow
b. fog
c. rain
d. sleet
b. fog
Jane wants to measure the amount of precipitation in her backyard for the month of January. Which weather instrument should Jane use.
a. barometer
b. rain gauge
c. thermometer
d. weather vane
b. rain gauge
Which correctly compares low and high pressure weather systems?
a. A low-pressure system usually brings cool dry air and clear skies, while a high pressure system brings clouds and precipitation.
b. A low-pressure system usually brings clouds and precipitation, while a high pressure system brings cool dry air and clear skies.
c. A low-pressure system usually brings warm dry air and clear skies, while a high-pressure system usually brings warm moist air and precipitation.
b. A low-pressure system usually brings clouds and precipitation, while a high pressure system brings cool dry air and clear skies.
A cold front is moving toward a warm air mass, and stratus clouds are observed in the sky. Which weather conditions are most likely?
a. a cool, rainy day
b. a cool, sunny day
c. a warm, rainy day
d. a warm, sunny day
a. a cool, rainy day
If a weather system is moving from the Pacific coast to North Carolina, from which direction will the winds in North Carolina most likely blow?
a. north
b. west
c. east
d. south
b. west
From which cloud would rain or snow most likely fall?
a. cirrus
b. cumulus
c. cumulonimbus
c. cumulonimbus
Why do scientists collect data about the amount of water vapor in the air using a hygrometer?
a. to determine humidity levels
b. to monitor evaporation rates
c. to predict wind speed and direction
d. to determine atmospheric pressure
a. to determine humidity levels
Which type of air pressure causes a storm to form on a spring day?
a. low pressure, causing air to rise, cool, and form water droplets
b. high pressure, causing air to rise, cool, and form water droplets
c. low pressure, causing air to sink and bring water droplets to the ground
d. high pressure, causing air to sink and bring water droplets to the ground
a. low pressure, causing air to rise, cool, and form water droplets
Which process allows green plants to control the amount of water stored in their leaves?
a. photosynthesis
b. condensation
c. respiration
d. transpiration
d. transpiration
Throughout the year, there is usually some wind blowing at the beach during the day and night. What is the cause of these winds?
a. air flowing down mountains to the ocean
b. differences in the humidity over land and ocean
c. differences in the temperature of land and ocean
d. air flowing from the upper parts of the atmosphere
c. differences in the temperature of land and ocean
Why is it important to know the different types of clouds?
a. clouds can indicate the time of day that it is
b. clouds can indicate the type of weather that will occur
c. clouds can indicate the temperature of the different layers of the atmosphere
b. clouds can indicate the type of weather that will occur
Which best explains why it is important for a person to the able to identify cumulonimbus clouds?
a. cumulonimbus clouds can cause mild showers
b. cumulonimbus clouds can cause severe thunderstorms
c. cumulonimbus clouds form near Earth's surface, causing fog
d. cumulonimbus clouds form when the temperature is below freezing
b. cumulonimbus clouds can cause severe thunderstorms
On a cool, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?
a. stormy
b. sunny
c. snowy
d. hot
b. sunny
After rain, a puddle of water remains on a sidewalk. After a day of sunshine, the puddle is gone. which process is most responsible for the disappearance of the puddle?
a. precipitation
b. transpiration
c. evaporation
d. condensation
c. evaporation
Why do storms move from the west coast of America to the east coast?
a. El Nino
b. La Nina
c. the jet stream
c. the jet stream
What type of cloud are called fog when they are near the ground?
stratus
Which best explains what type of weather the Gulf Stream usually brings to North Carolina?
a. increased wind speed
b. increased air pressure
c. increased temperature
d. increased evapo
c. increased temperature
In the morning, Carlos noticed that the air pressure reading on the barometer was beginning to drop. What kind of weather can he most likely expect in the evening?
a. the weather will be cloudy with a chance of rain
b. the weather will be warmer with clear skies
c. the weather will be clear and windy
d. the weather will be sunny and cool
a. the weather will be cloudy with a chance of rain
Which of the following best explains how condensation occurs?
a. heat energy from the sun is increased, causing water vapor to condense
b. water travels to the sun, and then condenses into clouds
c. water in the air always turns to liquid when it comes in contact with a surface
d. heat energy from the sun is decreased, causing the water vapor to cool and condense
d. heat energy from the sun is decreased, causing the water vapor to cool and condense
What is the best explanation for how air masses move across the United States?
a. The prevailing westerlies move air masses from the west to east across the United States but may be deflected by the jet stream
b. The trade winds move air masses from west to east across the United States
c. The jet stream moves air masses from the Pacific Ocean across the United States
d. The warm air of the Gulf Stream causes air masses to move from the Atlantic Ocean to the Pacific Ocean
a. The prevailing westerlies move air masses from the west to east across the United States but may be deflected by the jet stream
Mark looks at the clouds in the sky and decides that he does not need to take his umbrella with him today. Which clouds did Mark most likely see in the sky?
a. cirrus
b. nimbostratus
c. cumulonimbus
a. cirrus
Which is most likely the location of the jet stream in autumn?
a. Canada
b. Mexico
c. the North Pole
d. the United States
d. the United States