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| Light can only be detected by its effects on __________. |
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| Light can be characterized by its __________________. |
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| A spectrometer is used to measure what aspect of a beam of light? |
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| Whose theory of electromagnetism stated that electromagnetic waves are equally divided between an electric field and a magnetic field? |
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| Photons can be described by both their _________ and their energies. |
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| Electromagnetic radiation is only detected when it is intercepted and then transformed into another form of _______________. |
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| Light travels as a wave in an infinite number of straight lines, called ________, which create a spherical, expanding wavefront. |
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| The speed of light was first measured by ___________________ in 1676. |
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Definition
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| What is the speed of light? |
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Definition
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Term
The electromagnetic spectrum is comprised of __________ parts, of which visible light is
but one. |
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| Everyday items, such as pagers and cell phones, use _________________ to function. |
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Term
| There are ___________ colors that comprise the spectrum of visible light. |
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Definition
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Term
| What is the most common source of ultraviolet rays? |
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Definition
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| _______ is the primary agent responsible for sunburns. |
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Definition
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Term
| _________ are a type of EM radiation with a very short wavelength and high frequency, which allows them to move around molecules. |
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Definition
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Term
| ____________ are emitted by exploding stars in space. |
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Definition
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Term
| What color has the lowest frequency of any visible light? |
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Definition
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Term
| What color has the highest frequency of any visible light? |
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Definition
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Term
| The brightness or intensity of light depends on its _____________. |
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Definition
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Term
| _________ are high-energy charged particles that travel through space at nearly the speed of light. |
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Definition
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Term
| One of the easiest methods of creating electromagnetic radiation is by _____________. |
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Definition
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Term
| Most of the output of a common lighting instrument is in the form of ________. |
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Definition
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Term
| Measurement of light amplitude falls into two categories; what are they? |
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Definition
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Term
| The lumen is a measurement of what kind of light? |
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Definition
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Term
| _______ is an illumination of one lumen per square meter. |
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Definition
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Term
| ___________ is a measurement of luminous intensity. |
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Definition
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Term
| One lumen per square foot equals _______________. |
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Definition
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Term
| ___________ decreases in inverse proportion to the square of the distance. |
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Definition
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Term
| If a surface is exposed to white light and it reflects all of the wavelengths that strike the surface, the surface will appear _____________. |
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Definition
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Term
| If a surface is exposed to white light and it absorbs all of the wavelengths that strike the surface, the surface will appear _____________. |
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Definition
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Term
| ____________ is a property of light, not of an object itself. |
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Definition
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Term
| The ___________ color process deals with the mixing of direct light. |
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Definition
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| The ___________ color process deals with reflected or filtered light. |
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Definition
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Term
| In the subtractive color process, cyan is created by subtracting _________. |
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Definition
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Term
| In the subtractive color process, magenta is created by subtracting _________. |
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Definition
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Term
| In the subtractive color process, yellow is created by subtracting _________. |
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Definition
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Term
| What color is referred to as the “key” color in the subtractive color process? |
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