Longitudinal wave - disturbance is along (parallel to) the direction of motion, Transverse wave - Disturbance is perpendicular to the direction of motion, Mechanical wave - Waves that require a medium, Electromagnetic wave - Wave that doesn’t require a medium, Crest - High part of a transverse wave, Trough - Low part of a transverse wave, Compression - Where a longitudinal wave is compressed, Rarefaction - Where a longitudinal wave is stretched out , Wavelength - The distance between two crests or troughs, Frequency - Amount of cycles every second, Period - Time it takes for one cycle to happen, Equilibrium - Middle of a wave, Amplitude - Distance between crest or trough and equilibrium point ,

Waves

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