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What is the smallest spectrum of an electromagnetic spectrum?
Te part visible to the human eye.
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When UV light hits glass, the atoms in it will ______?
Resonate
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What kind of kind of light doesnt shine through glass?
Infrared light.
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Opaqueness occurs when?
Light is absorbed.
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When light hits an oval surface...
if the angle is relative to the normal it will equal 20 degrees. If it is not relative to the surface than use the equation 2(90-x)
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Concave is and convex is
)(
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Fuse reflection is
when you see something perfectly in every direction.
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Refraction is the
bending of light
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If you go from a high to low index refraction, the light bends
away from the norm.
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Selective reflection
The color you see is the color that isnt really there.
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Primary/Additive colors :
Red Blue Green
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Subjective colors :
Cyan Yellow Magenta
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Complimentary colors
any two colors mixed to get white
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What is red's subjective color?
Cyan
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What is green's subjective color?
Magenta
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What is blue's subjective color?
Yellow
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What happens when you mix all of the subjective colors?
Black
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The color of the sky depends on
the amount of moisture in the sky. (the more clear he sky, the more blue it is)
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When something moves up and down then left and right periodically it is called a
vibration
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A vibration is in space and time is called a
wave
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What are the wave characteristices ?
amplitude, wavelength, period, frequency, and speed
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The speed of sound is
depends on the temperature
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Sound needs what to travel?
a medium!
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Sound travels fastest in
Steel (15) and water (5)
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What are two different types of waves?
transverse and longitudinal.
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What is a transverse wave?
When the direction of the waves go + (perpendicular) (heat wave, light wave)
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What is a longitudinal wave?
When the direction of the wave is || (parallel) to its vibration ( compress and refraction) Sound wave is longitudinal
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Sound is described as
pitch = frequency
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How fast something travels is its
elasticity
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Anything above 20,000 Hz and below 20 Hz a human
- cannot hear.
- 20,00 ultrasonic
- 20 infrasonic
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How rigid and smooth something is depends on how the sound is
reflected
Rigid (sound is absorbed)
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Light travels fastest in
air
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Speed of sound is
V = 330 + .6Tc
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