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12 Cards in this Set
- Front
- Back
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Define a wave |
- disturbance that propagates through a medium - waves transfers energy, not matter |
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Frequency |
-number of cycles per second -frequency is determined by the source of the wave |
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Period |
- time for one cycle -inverse of frequency |
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Wavelength |
-length of one wave -depends on frequency and speed of the wave -measured from any point to where it repeats |
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Speed |
-speed that the wave travels through the medium -determined by the medium it travels through |
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Amplitude |
-maximum displacement from rest -varies with the amount of energy the wave carries -indepedant from all other quantities |
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Transverse Waves |
- particles vibrate at right angles the direction of travel of the wave -crests and troughs |
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Longitudinal Waves |
-also called compressional waves - particles vibrate parallel to the direction of travel of the wave -compressions and rarefactions |
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Surface Waves |
- occur along the boundaries between two medias -example: surface of water - particles have combined longitudinal and transverse motion so they move in a circle |
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Closed Pipe |
-first resonance occurs at 1/4 of wavelength - each additional resonance is 1/2 wavelength beyond |
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Open Pipe |
- first resonance occurs at 1/2 of wavelength - each additional resonance occurs 1/2 wavelength beyond |
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Doppler Shift |
-apparent change in the frequency of the wave caused by the relative motion between the source of the wave and the observer |
