vibration - the complete back and forth movement of an object, medium - solids, liquids, gases, pitch - how high or low the sound is, high pitch - high frequency & short wave length, low pitch - low frequency & long wave length, sound - a form of energy that travels as waves through matter, loudness - related to the amplitude of the wave, compression - part of the wave where the particles are close together, rarefaction - part of the wave where the particles are spread apart, reflection - the bouncing back of a wave, diffraction - the bending of a wave around a barrier or through an opening, refraction - the bending of a wave as it passes from one medium to another, interference - the combination of two or more waves that result in a single wave, constructive interference - results in a higher amplitude wave, destructive interference - results in a lower amplitude wave, resonance - when two objects naturally vibrate at the same frequency, standing waves - results from the interference between a wave and its reflected wave., mechanical wave - waves that require a medium to transfer energy, longitudinal wave - type of wave that displaces the particles of the medium parallel to the direction in which the wave travels, echo - a reflected sound wave,

Sound Waves

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