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Waves

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1Waves
2Longitudinal Waves
3Longitudinal WavesThe vibrations are parallel to the direction of travel of the wave.
4Transverse waves
5Transverse WavesThe vibrations are at right angles to the direction of travel of the wave. Light, radio and other electromagnetic waves are transverse waves.
6WavefrontA wavefront is the moving line that joins all the points on the crest of a wave.
7WavelengthThe distance between two adjacent peaks/troughs of the wave. In the case of a longitudinal wave it is the distance between two consecutive points of maximum compression.
8FrequencyThe number of peaks/troughs that go past each second.
9Time periodThe time taken for each complete cycle of the wave motion.
10AmplitudeThe maximum particle displacement of the mediums vibration from the undisturbed position. In a transverse wave this is half a crest to trough height.
11Formulae
12Formula