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Movement in the Atmosphere
Chapter 11 (KCCS)
23
Science
8th Grade
12/18/2010

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Cards

Term
Define hurricanes...
Definition
Giant cyclonic windstorms that form over tropical or subtropical oceans.
Term
True or False: Tornadoes occur only in the United States.
Definition
False.
Term
What is another name for tornadoes?
Definition
Cyclones
Term
What are tornadoes that occur over water called?
Definition
Waterspouts
Term
What is an air mass?
Definition
An air mass is a huge mass of air that has uniform temperature and humidity.
Term
What are the four different types of fronts?
Definition
-Stationary Front
-Moving Front
-Cold and Warm Front
-Occulted Front
Term
What is a squall line?
Definition
A line of violent thunderstorms
Term
Name the four types of lightening...
Definition
-Heat Lightning
-Steeped Leader Lightning
-Return Strokes Lightning
-Forked Lightning
Term
What is lightning?
Definition
Lightning is an electric discharge between the cloud and the ground.
Term
What is an electrical storm?
Definition
A large number or electrical bolts in a short period of time
Term
What are tornadoes?
Definition
A narrow funnel cloud extending down from a cumulonimbus cloud
Term
What part of the tornado is the most destructive part?
Definition
The base
Term
What is the rating scale that is used to rate tornadoes called?
Definition
Fujita Scale
Term
What are the five types of winds?
Definition
-High Altitude Winds
-Surface Winds
-Local Winds
-Global Winds
-Vertical Winds
Term
What are geostrophic winds that move from a high pressure area to a low pressure area?
Definition
High Altitude Winds
Term
What causes local winds?
Definition
Short distance pressure differences
Term
List three types of local winds...
Definition
-Sea Breeze
-Land Breeze
-Mountain Breeze
Term
What are three factors that can work together to determine wind speed and direction?
Definition
-Horizontal Atmospheric Pressure Differences
-Coriolis Effect
-Friction
Term
In the Northern Hemisphere, in what direction do cyclonic systems rotate?
Definition
Counter-clockwise direction
Term
List three types of storms.
Definition
Thunderstorms, Tornadoes, and Hurricanes
Term
Approximatively how many tornadoes occur in the United States each year?
Definition
About 1,000
Term
True or False: Houses in the path or a tornado can explode due to the low pressure within the funnel.
Definition
False.
Term
What is the center of a hurricane called?
Definition
Eye
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