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29 Cards in this Set
- Front
- Back
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Wave |
A disturbance that transfers energy through matter and space |
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Vibration |
A repeated back-and-fourth motion |
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Medium |
A material through the which mechanical waves can travel |
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Mechanical wave |
A wave that requires a medium |
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Vacuum |
Empty space |
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Electromagnetic wave |
A disturbance that can transfer energy through a vacuum or through matter |
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Transverse wave |
A wave in which the particles of the medium vibrate in a direction perpendicular to the path of the wave |
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Crest |
The highest point of a transverse wave |
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Trough |
The lowest point in a transverse wave |
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Longitudinal wave |
A wave in which the particles of the medium vibrate parallel to the path of a wave |
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Compression |
The part of a longitudinal wave where the particles get pushed closer together |
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Rarefaction |
The part of a longitudinal wave where the particles are spread apart |
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Amplitude |
The distance from the midpoint of a wave to a crest or trough |
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Wavelength |
The distance from any point on a wave to the identical point on the next wave |
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Absorption |
The taking in of a wave's energy |
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Reflection |
The bouncing back of waves when they strike the surface of a new medium |
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Plane mirror |
A flat, smooth surface that can reflect light and produce a clear image |
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Transmission |
The passing of waves through a medium |
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Opaque |
Allowing no light waves to be transmitted |
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Transparent |
Transmitting most light waves; clear |
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Translucent |
Transmitting some light but scattering it |
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Refraction |
The bending of waves caused by a change in their speed as they pass from one medium to another |
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Convex lens |
A lens that is thicker in the middle that it is at its edges |
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Prism |
A transparent object that separates white light into the different colors that make up white light |
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Visible light |
Electromagnetic waves that can be detected by the human eye |
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Ultraviolet radiation |
Electromagnetic waves with frequencies higher than those of visible voilet light |
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Infrared radiation |
Electromagnetic waves with frequencies below those of visible red light |
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Diffraction grating |
A device that separates white light into colors by means of many narrow slits |
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Wave speed |
The distance a wave travels per unit of time |
