energy, Sound transfers e__________, vibrations, To make a sound there must be v_____________, rarefactions, Low pressure parts of a sound wave are called r__________, compressions, High pressure parts of a sound wave are called c__________, loudspeaker, This converts changing potential difference into a sound wave. L____________, diaphragm, Which part of the loudspeaker makes the air particles move? D_______, ultrasound, U__________ has frequencies higher than human hearing., echolocation, Bats use this to navigate in the dark. e____________, frequency, F_________ is the number of waves which pass a point in a second., amplitude, A________ is the height of a wave measured from rest.

Sound Waves

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