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Light
N/A
18
Science
6th Grade
06/03/2012

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Term
Electromagnetic Wave
Definition
A wave that can travel through empty space or matter and consists of changing electric and magnetic fields.
Term
Waves
Definition
Waves are any disturbance that transmits energy through matter or empty space.
Term
Radiation
Definition
Radiation is the transfer of energy as electromagnetic waves
Term
Electromagnetic Spectrum
Definition
A spectrum of different kinds and lengths of light
Term
Reflection
Definition
the bouncing back of a ray of light, sound, or hear when the ray hits a surface that it doeos not go through
Term
absorption
Definition
when light is absorbed by a material
Term
scattering
Definition
when light refracts or deviates from its original path
Term
refraction
Definition
the bending of a wave as the wave passes between two substances in which the speed of the wave differs.
Term
diffraction
Definition
the change in wave propagation as affected by the presence of two or more waves that result ina new wave pattern
Term
Interference
Definition
interference is the addition(superposition) of two or more waves that result in a new wave pattern
Term
transverse waves
Definition
waves in which particles vibrate in an up and down motion. i,e; Electromagnetic waves.
Term
medium
Definition
something for something to pass through
Term
crest
Definition
the top of a wave
Term
trough
Definition
the bottom of the wave
Term
amplitude
Definition
the height of a wave. the measurement is take from the crest to the half way point to the trough.
Term
wavelength
Definition
the distance between two points on a wave. Either crest to crest or trough to trough.
Term
frequency
Definition
the number of occurrences within a given time period
Term
wavespeed
Definition
the speed at which a wave travels through a medium
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