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What are the parts of a wave?

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Quick Answer

Transverse waves have two parts: a crest, which is the highest point of the wave, and the trough, which is the lowest part of the wave. Longitudinal waves also have two parts: compression, which are areas of high molecular density, and rarefactions, which are areas of low molecular density.

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What are the parts of a wave?
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Full Answer

There are two types of waves depending on the direction of motion of the wave relative to the direction in which the particles vibrate. In transverse waves, the direction of the wave energy is perpendicular to the direction of the movement of the particles. In other words, if the wave is traveling from left to right, the particles move up and down. The highest point a particle reaches in a transverse wave is called a crest while the lowest point is called a trough. In longitudinal waves, the direction of the wave energy is parallel (or in the same direction) to the movement of the particles. In other words, the particles vibrate back and forth along the direction of the wave itself. The areas of the wave where the particles are close together are called compressions. This means that there must be areas of the wave where the particles are spread further apart from each other. These areas are called rarefactions. For a transverse wave, a complete wave cycle, or wavelength, must include one crest and one trough. For a longitudinal wave, a complete wavelength must include one compression and one rarefaction.

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    What are the parts of a transverse wave?

    A:

    Parts of a transverse wave include the crest, trough, amplitude and wavelength. The crest is the top of the wave, and the trough is the bottom. The amplitude refers to the height of the wave from the midpoint, or rest point, of the wave. The wavelength is the length it takes for the wave to complete one cycle.

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  • Q:

    What are the parts of a longitudinal wave?

    A:

    A longitudinal wave is made up of compressions and rarefactions. In compressions, the molecules of the wave are tightly compressed to form an area of high molecular density, while rarefactions have a low molecular density because the molecules are spread far apart.

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