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17 Cards in this Set
- Front
- Back
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Amplitude |
The maximum distance from the equilibrium position that occurs in periodic motion. |
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Antinode |
One of the positions in a standing-wave or interference pattern where there is maximum movement; that is, amplitude is a maximum. |
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Crest |
The peak of a wave disturbance. |
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Cycle |
Once complete repetition of a periodic motion. It may start anyplace in the motion. |
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Diffraction |
The spreading of waves passing through an opening or barrier |
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Displacement |
In wave motion, the distance of the disturbance from its equilibrium position. |
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Equilibrium Position |
A position where the net force is zero. |
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Frequency |
The number of times a periodic motion repeats in a unit of time. It is equal to the inverse of the period. |
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Fundamental Frequency |
The lowest resonant frequency for an oscillating system. |
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Harmonic |
A frequency that is a whole-number multiple of the fundamental frequency. |
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In Phase |
Describes two or more waves with the same wavelength and frequency that have their crests lined up. |
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Interference |
The superposition of waves. |
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Longitudinal Waves |
A wave in which the vibrations of the medium are parallel to the direction the wave is moving. |
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Node |
One of the positions in a standing wave or interference pattern where there is no movement; that is, the amplitude is zero. |
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Oscillation |
A vibration about an equilibrium position or shape. |
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Period |
The shortest length of time it takes a periodic motion to repeat. It is equal to the inverse of the frequency. |
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Periodic Wave |
A wave in which all the pulses have the same size and shape. The wave pattern repeats itself over a distance of one wavelength and over a time of one period. |
