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10 Cards in this Set
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- Back
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Define wavelength
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the physical distance between two points exactly one cycle apart in a waveform
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Define Frequency
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Number of cycles in a given time period
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Define Amplitude
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The intensity of the wave
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What are the two types of meters that measure light?
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Incident Meters and Reflected meters
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Define incident meters
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a measure of light coming directly from a source (recorded in LUMENS, LUX, or FOOTCANDLES)
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What does a reflected meter measure
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light that bounces off of an object (expressed in FOOTLAMBERTS or NIT)
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According to the Inverse Square Law, what happens when the distance from the light source is doubled?
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Perceived illumination decreases by 75%
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The higher the color temperature the _____the light
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Bluer
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The lower the color temperature the _____ the light
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Redder
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Define ambient light
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any light in a presentation environment other than the light generated by the displayed image
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