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Flashcards - TExES Physics/Math 7-12: Waves, Sound & Light

Flashcards - TExES Physics/Math 7-12: Waves, Sound & Light
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prism
PRISM is a clandestine surveillance program under which the United States National Security Agency collects internet communications from at least nine major US internet companies
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frequency
Frequency is the number of occurrences of a repeating event per unit time
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microwaves
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz and 300 GHz
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Doppler effect
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to its source
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pigments
A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption
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color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc
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visible light region
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye
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pure spectral color
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light
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electromagnetic spectrum
The electromagnetic spectrum is the collective term for all known frequencies and their linked wavelengths of the known photons
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sound
In geography, a sound is a large sea or ocean inlet larger than a bay, deeper than a bight, and wider than a fjord; or a narrow sea or ocean channel between two bodies of land
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transverse wave
A transverse wave is a moving wave that consists of oscillations occurring perpendicular to the direction of energy transfer
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rarefaction
Rarefaction is the reduction of an item's density, the opposite of compression
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rarefaction
Rarefaction is the reduction of an item's density, the opposite of compression
transverse wave
A transverse wave is a moving wave that consists of oscillations occurring perpendicular to the direction of energy transfer
sound
In geography, a sound is a large sea or ocean inlet larger than a bay, deeper than a bight, and wider than a fjord; or a narrow sea or ocean channel between two bodies of land
electromagnetic spectrum
The electromagnetic spectrum is the collective term for all known frequencies and their linked wavelengths of the known photons
pure spectral color
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light
visible light region
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye
color
Color or colour is the visual perceptual property corresponding in humans to the categories called red, blue, yellow, etc
pigments
A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption
Doppler effect
The Doppler effect is the change in frequency or wavelength of a wave for an observer moving relative to its source
microwaves
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between 300 MHz and 300 GHz
frequency
Frequency is the number of occurrences of a repeating event per unit time
prism
PRISM is a clandestine surveillance program under which the United States National Security Agency collects internet communications from at least nine major US internet companies
amplitudes
The amplitude of a periodic variable is a measure of its change over a single period
wavelengths
In physics, the wavelength of a sinusoidal wave is the spatial period of the wave-the distance over which the wave's shape repeats, and thus the inverse of the spatial frequency
resonance
In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at a specific preferential frequency
opacity
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light
reflected
Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated
Diffraction
Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit
Interference
In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude
blue shift
A blueshift is any decrease in wavelength, with a corresponding increase in frequency, of an electromagnetic wave; the opposite effect is referred to as redshift
sonic boom
A sonic boom is the sound associated with the shock waves created by an object traveling through the air faster than the speed of sound
light ray
In optics a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow
dispersion
In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency
index of refraction
In optics, the refractive index or index of refraction n of a material is a dimensionless number that describes how light propagates through that medium

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