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Definitions

Crests (Peaks): One of the places in a wave where the wave is highest or the disturbance is the greatest. Troughs (Valleys): One of the places in a wave where the wave is lowest or the disturbance is the greatest in the opposite direction from the wave. Definitions.

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Definitions

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  1. Crests (Peaks): One of the places in a wave where the wave is highest or the disturbance is the greatest. Troughs (Valleys): One of the places in a wave where the wave is lowest or the disturbance is the greatest in the opposite direction from the wave.

  2. Definitions • Amplitude: The distance from the midpoint to the maximum (Crest or peak) of a wave or equivalently , from the midpoint to the minimum (trough or valley). Re: Sine Wave, the distance from the midpoint to any point on the curve. There will be a positive AND negative amplitude associated with this wave .

  3. Definitions • Wavelength: The distance from the top of the crest (peak) of a wave to the top of the following crest, or equivalently, the distance between identical parts on the wave. • Frequency: The number or events (cycles, vibrations, oscillations or any repeated event) per unit time measured in Hertz (or events per unit time) • Hertz: The SI unit of frequency, One hertz (Hz) ids one vibration (cycle) per second.

  4. Sine curve: A curve that represents the crests (peaks) and troughs (valleys) of a wave as traced out by a swinging pendulum that drops a trail of sand over a moving conveyor belt • Period: In general, the time needed by an event to complete one cycle.

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