Standing Sound Waves definitions Flashcards
Standing Sound Waves definitions
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Longitudinal WavesWaves where particle displacement is parallel to wave direction, typical in sound waves.Transverse WavesWaves where particle displacement is perpendicular to wave direction, typical in strings.Standing WavesWaves that remain in a constant position, formed by interference of two waves traveling in opposite directions.Open PipeA pipe with both ends open, where standing waves have antinodes at each end.Closed PipeA pipe with one end closed, where standing waves have a node at the closed end and an antinode at the open end.AntinodeA point in a standing wave with maximum amplitude, occurring at open ends of pipes.NodeA point in a standing wave with zero amplitude, occurring at closed ends of pipes.Fundamental FrequencyThe lowest frequency at which a system oscillates, corresponding to n=1.HarmonicsFrequencies that are integer multiples of the fundamental frequency.OvertoneAny frequency higher than the fundamental frequency, often referred to by its order.Speed of SoundThe speed at which sound waves travel through a medium, typically 343 m/s in air.Frequency EquationFor open pipes: nv/2L; for closed pipes: nv/4L, where n is harmonic number.Wavelength EquationFor open pipes: 2L/n; for closed pipes: 4L/n, where n is harmonic number.Odd IntegersNumbers like 1, 3, 5, etc., used for harmonic numbers in closed pipes.Third OvertoneThe fourth harmonic in open pipes, seventh harmonic in closed pipes.