Meteorology

Practice Test
      
  1.The exchange of heat or moisture between an air mass and the underlying surface is called __________. SC.D.1.4.1  
  a.   air mass convection  
  b.   air mass weather  
  c.   air mass modification  
  d.   climate  
      
  2.What type of instrument probably was not used to provide the information in the station model pictured in the figure? SC.D.1.4.1



 
  a.   barometer  
  b.   anemometer  
  c.   thermometer  
  d.   Doppler radar  
      
  3.A __________ is a narrow region that separates two air masses of different densities. SC.D.1.4.1  
  a.   jet stream  
  b.   trade wind  
  c.   disturbance  
  d.   front  
      
  4.What is the network of weather stations located across the United States called? SC.D.1.4.1  
  a.   a ceilometer  
  b.   weather radar system  
  c.   Automated Surface Observing System ASOS  
  d.   radiosondes  
      
  5.A __________ is a record of weather data for a particular location and time.SC.D.1.4.1  
  a.   digital forecast  
  b.   ceilometer  
  c.   isopleth  
  d.   station model  
      
  6.What instrument is used to measure temperature? SC.D.1.4.1  
  a.   an anemometer  
  b.   a barometer  
  c.   a radiosonde  
  d.   a thermometer  
      
  7.Long-term variations in weather for a particular area make up the__________ of an area. SC.D.1.4.1  
  a.   meteorology  
  b.   stability  
  c.   weather  
  d.   climate  
      
  8.The data in the table shows weather conditions before and after a front passed. What type of front passed through? SC.D.1.4.1

MonTueWedThursFriSatSunAverage temperature °C23.322.222.215.616.716.717.8Rainfall cm003.310000Relative humidity40‰60‰100‰80‰60‰50‰40‰Air pressure mb1000998-----


 
  a.   cold  
  b.   warm  
  c.   stationary  
  d.   occluded  
      
  9.What type of instrument is used to measure wind speed? SC.D.1.4.1  
  a.   a hygrometer  
  b.   an anemometer  
  c.   a barometer  
  d.   a ceilometer  
      
  10.What is a large body of air that takes on the characteristics of the area over which it forms? SC.D.1.4.1  
  a.   a climate  
  b.   an air mass  
  c.   a cloud  
  d.   a weather system  
      
  11.__________ is used to measure the speed of raindrops toward or away from a specific point. SC.D.1.4.1  
  a.   Doppler radar  
  b.   ASOS  
  c.   a radiosonde  
  d.   A ceilometer  
      
  12.What causes the Coriolis effect?SC.D.1.4.1  
  a.   the prevailing westerlies  
  b.   seasons  
  c.   Earth's tilted axis  
  d.   Earth's rotation  
      
  13.According to the station model shown in the figure, how much has the barometric pressure changed over the last three hours?SC.D.1.4.1



 
  a.   12 millibars  
  b.   --12 millibars  
  c.   --1.2 millibars  
  d.   1.2 millibars  
      
  14.Use the table to infer something about the climate of this area.SC.D.1.4.1

MonTueWedThursFriSatSunAverage temperature °C23.322.222.215.616.716.717.8Rainfall cm003.310000Relative humidity40‰60‰100‰80‰60‰50‰40‰Air pressure mb1000998-----


 
  a.   It is often very hot.  
  b.   Rainfall is extremely common.  
  c.   It is often very cold.  
  d.   It receives occasional rainfall.  
      
  15.High-pressure systems usually are associated with __________ and low-pressure systems are associated with __________. SC.D.1.4.1  
  a.   the jet stream, fronts  
  b.   clouds and precipitation, fair weather  
  c.   fair weather, fair weather  
  d.   fair weather, clouds and precipitation  
      
  16.A forecast that involves comparing current weather patterns to past weather patterns is called __________.SC.D.1.4.1  
  a.   an analog forecast  
  b.   an isobar  
  c.   a digital forecast  
  d.   a station model  
      
  17.A forecast that relies on numerical data is called __________.SC.D.1.4.1  
  a.   a digital forecast  
  b.   an isopleth  
  c.   an analog forecast  
  d.   a station model  
      
  18.What is the convergence of the trade winds from both hemispheres called?SC.D.1.4.1  
  a.   the jet stream  
  b.   the prevailing westerlies  
  c.   the intertropical convergence zone  
  d.   the horse latitudes  
      
  19.What is the current state of the atmosphere called? SC.D.1.4.1  
  a.   weather  
  b.   stability  
  c.   climate  
  d.   rain  
      
  20.What are four- to seven-day forecasts based on?SC.D.1.4.1  
  a.   patterns and cycles  
  b.   circulation patterns of the troposphere  
  c.   current weather  
  d.   observation of cloud and precipitation movement  

 
   
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