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Sound & Light (Science Final Exam)
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diffraction
waves bend and spread out
decibels
the measure of a sound's loudness
loudness
two primary colors combine to form a secondary color
nodes
destructive interference at zero amplitude
speed of light
300,000,000 meters per second
coclea
part of the ear that converts sound waves to nerve signals
sonar device
measures the time it takes to reflect sound waves
polarizing filters
indicates that light sometimes acts like a wave
heat lamp
does not use radio waves
cone
part of the eye that responds to color
wave
a disturbance that transfers energy from place to place
three primary colors of
LIGHT
red
green
blue
Doppler Effect
as a sound source moves toward a listener, pitch appears to increase
thermogram
picture of heat taken by an infrared camera
telescope
uses lenses to view things that are very far away
LONGitudinal wave
moves particals of the medium parallel to the direction of the wave
ex. spring, like on the trampoline (they are LONG)
tsunami
powerful surface wave caused by an earthquake
sonogram
picture that shows reflected sound waves from tissue
ex. the picture you get of the baby inside a mama
light
an EM wvae that doesn't need a medium through which to travel
diffuse reflection
regular reflection
translucent
light partially reflects and refracts
you can somewhat see through it; may look foggy
ex. shower door
light rays bend (refract) as it slows down when it enters a medium
amplitude
wavelength
frequency
laser light
one color
one frequency
white light
all colors and all frequencies of the visible sprectrum
music
combinations of tones that are pleasing to hear
noise
combinations of tones that are NOT pleasing to hear
incandescent
flourescent
neon
spectrum of light
colors and wavelengths
p-waves
s-waves
surface waves
speed of sound
relation to elasticity (more elastic=higher speed) and temperature (higher temp=higher speed)
virtual image
right-side up
rays do not meet
real image
upside-down
rays meet at a point
Author
wennifer08
ID
19714
Card Set
Sound & Light (Science Final Exam)
Description
Sound and Light
Updated
2010-05-21T03:37:47Z
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