BRAINCAKEHarmonics
Transverse stationary waves formed on stringed musical instruments can produce musical notes. Every string has a fundamental frequency of vibration f0which is the minimum frequency of a stationary wave on a string. This depends on the mass, tension and length of the string.in addition to the fundamental note, different harmonics are produced with wavelengths related to the fundamental.if a string is stretch between two fixed points these points acts as nodes.
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Key terms in this lesson
- tension
- The force within a stretched object, such as a rope or cable, that opposes the stretching.
- longitudinal wave
- A wave in which the particles oscillate parallel to the direction of energy transfer.
- frequency
- The number of complete oscillations or wavelengths passing a given point per unit time.
- superposition
- The effect where two or more waves overlap so that the resultant displacement at each point is the vector sum of the individual displacements.
- stationary wave
- A wave pattern formed when two progressive waves of the same frequency, travelling in opposite directions, superpose; it stores energy rather than transferring it.