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15 Cards in this Set
- Front
- Back
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Mechanical waves |
Physical medium is being disturbed |
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Electromagnetic waves |
Do not require a medium to propagate |
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Wave motion |
The transfer of energy through space without the accompanying transfer of matter |
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Mechanical wave |
A travelling wave or pulse that causes the elements of the disturbed medium to move perpendicular to the direction of propagation |
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Longitudinal wave |
A travelling wave or pulsw that causes the elements of the medium to move parallel to the direction of propagation |
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Sinusoidal wave |
The simplest example of a periodice continuous wave and can be used to build more complex waves |
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Crest |
Point at which the displacement of the element from its normal position is highest |
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Trough |
The lowest point |
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Wavelength |
Distance from one crest to the next crest; the minimum distance between any two identical points on adjacent waves |
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Period |
Time interval required for two identical points of adjacent waves to pass by a point |
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Frequency |
The number of crests (or troughs, or any other point on the wave) that pass a given point in a unit time interval |
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Amplitude |
The maximum position of an element of the medium relative to its equilibrium position |
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Vibrating string; light |
Examples of transverse wave |
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Sound |
Example of longitudinal wave |
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Surface-water waves; earthquakes |
Examples of waves that exhibit a combination of transverse and longitudinal displacements |
