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Natural Disasters

Vocabulary

TermDefinition
wind The perceptible natural movement of the air,especially in the form of a current of air blowing from a particular direction
air pressure air pressure is the force exerted onto a surface by the weight of the air
high pressure system A high pressure system is a whirling mass of cool,dry air that generally brings fair weather and light winds
low pressure system A low pressure system is a whirling mass of warm, moist air that generally brings stormy weather with strong winds
westerlies A wind blowing from the west
easterlies A wind blowing from the east
trade winds A wind steadily toward the equator
global winds wind patterns
doldrums sudden storms
energy mental activity
coriolis effect an effect whereby a mass moving in a rotating
sea breeze a breeze blowing toward land
land breeze a breeze blowing toward sea
jet stream a narrow westerly air current
hurricane a storm with a violent wind
tornado a mobile, destructive vortex of wind
vortex a mass of whirling air
focus the center of interest or activity
tectonic plates two sub-s that move
normal fault occur where two blocks of rock are pulled apart
reverse fault occur where two blocks of rock are forced together
strike-slip fault a fault in which strata are mainly in a horizontal direction
p-waves a longitudinal earthquake wave
s-wave a motion in a solid medium where the medium moves perpendicular to a direction of a travel of a wave
Richter scale a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations
epicenter the point on the earth's surface vertically above the focus of an earthquake.
Created by: caytlynoneal