Shared Flashcard Set

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chap 2, sec 1,2,3
fgkhl
24
Science
8th Grade
10/07/2010

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Term
electromagnetic waves
Definition
electromagnetic waves that transfer electric and magnetic energy through the vaccum of space
Term
radiation
Definition
the direct transfer of energy by electromagnetic waves.
Term
infared radiation
Definition
electromagnetic waves with wavelengths that are longer than visible light but shorter than microwaves
Term
ultraviolet waves
Definition
electromagnetic waves with wavelengths that are shorter than visible light but longer than x-rays
Term
scattering
Definition
reflection of light in all directions
Term
greenhouse effect
Definition
the process by which heat is trapped in the atmosphere by gases that form "blanket" around the earth
Term
temperature
Definition
average amount of energy of motion of each particle of a substance
Term
thermal energy
Definition
the total energy of motion in the particles of a substance
Term
thermometer
Definition
an instument used to measure temperature
Term
heat
Definition
the transfer of thermal energy from one object to another because of a difference in temperature
Term
conduction
Definition
the direct transfer of heat from one substance to another substance that it is touching
Term
convection
Definition
the transfer of heat by the movement of a fluid
Term
convection currents
Definition
the upward movement of warm air and the downward movement of cool air
Term
wind
Definition
horizantal movement of air from an area of high pressure to an area of lower pressure
Term
anemometer
Definition
an instument used to measure wind speed
Term
anemometer
Definition
an instument used to measure wind speed
Term
wind-chill factor
Definition
a measure of cooling combinding temperature and wind speed
Term
local winds
Definition
winds that blow over short distances
Term
sea breeze
Definition
the flow of cooler air from over an ocean or lake toward land
Term
land breeze
Definition
the flow of air from land to a body of water
Term
global winds
Definition
winds that blow steadily from specific directions over long distance
Term
coriolis effect
Definition
the way Earth's rotation makes winds curve
Term
latitude
Definition
distance from the equator, measured in degrees
Term
jet stream
Definition
bands of high-speed winds about 10 kilometers above earth's surface
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