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31 Cards in this Set
- Front
- Back
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Wave |
A disturbance moving through a medium |
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Medium |
Substance that a wave can move through |
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Longitudinal wave |
A wave in which the displacement of the medium is in the same direction of the wave |
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Transverse wave |
A wave that consists of oscillations occurring perpendicular to the direction of energy transfer |
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Mechanical wave |
A wave that is an oscillation of matter an travels through a medium |
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Electromagnetic wave |
Waves that travel through a vacuum rather than a medium |
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Amplitude |
The maximum extent of a vibration or oscillation in a wave |
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Wavelength |
Distance between successive crests of a wave |
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Period |
The time for a particle on a medium to make one complete vibrational cycle |
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Frequency |
The number of repeating occurrences per unit time |
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Hertz |
The unit of frequency equal to one cycle per second |
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Wave speed |
The distance traveled by a given point on the wave |
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Pitch |
The degree of highness or lowness of a tone |
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Loudness |
Characteristic of a sound that is primarily a psychological correlate of physical strength |
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Decibel |
A until used to measure the intensity of a sound |
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Dipper effect |
The change in the frequency of a wave |
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Echo |
A sound or series of sounds caused by the reflection of sound waves |
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Interference |
The process of two or more waves of the same frequency combined to reinforce or cancel eachother |
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Resonance |
The reinforcement or prolongation of sound by reflection from a surface or by the vibration of a neighboring object |
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Electromagnetic spectrum |
The range of wavelength or frequencies over which electromagnetic radiation extends |
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Translucent |
Allowing light to pass through; semi transparent |
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Opaque |
Not able to be seen through |
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Transparent |
Allowing light to pass through so that objects can be distinctly seen |
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Absorption |
When a light wave encounters am object they are either transmitted,reflected, or scattered |
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Reflection |
Throwing back of wave with out absorbing it |
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Refraction |
The change in direction of a wave as a result of its traveling at different speeds at different points along the wave front |
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Concave |
A surface that curves inward like the interior of a sphere |
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Converge |
To come from different directions at meet a point |
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Convex |
Having an out line or curved surface |
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Diverge |
To separate directions |
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Lens |
Light gathering device |
