Download Weather Test Study Sheet Key Terms 1. Air Mass – very large body

WeatherTestStudySheet
KeyTerms
1. AirMass–verylargebodyofairwithsimilarproperties
2. AirPressure–theforceofairagainstearth’ssurface
3. Anemometer–aninstrumentusedtomeasurewindspeed
4. Barometer–instrumentusedtomeasureairpressure
5. Blizzard–awinterstormwithwindsatleast56km/h,lowtemperature,visibilityless
than400m,andfallingorblowingsnowforover3hours
6. Climatograph–weathermap
7. DewPoint–thetemperatureatwhichavolumeofaircannotholdanymorewater
vapor
8. DopplerRadar–atypeofradarthatcalculatesdistanceandshowsdirectionof
movement
9. Forecast–predictionofwhattheweatherwillbelikeinthefuture
10. Front–boundarybetweenwarmandcoldairmasses
11. Humidity–moistureintheairintheformofagascalledwatervapor
12. Hurricane–largetropicalstormsthatformoverwarmoceans
13. Meteorologist–ascientistwhostudiestheweather
14. Precipitation–icecrystalsorwaterwhichfallsfromclouds
15. Psychrometer–aninstrumentusedtomeasurerelativehumidity
16. Relativehumidity–themeasurementthatcomparestheamountofwatervaporinthe
airwiththeamounttheaircanholdatacertaintemperature
17. Satellites–detectlargeweathersystemsacrosstheglobetodetermineworldwide
patterns
18. Temperature–themeasureoftheaveragekineticenergyoftheparticlesofasubstance
(e.g.,ifthekineticenergyofairmoleculesishigh,wesaythetemperatureishotand
coldairistheresultoflowkineticenergyofairmolecules)
19. Thermometer–aninstrumentusedtomeasuretemperature
20. Tornado–violentlyrotatingcolumnofair(orspinningfunnel-shapedcloudwith
extremelystrongwinds)incontactwiththeground