Sound Energy Flashcards

1
Q

repeated fast, back-and-forth movements

A

vibrations

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2
Q

the process of pushing a material into itself

A

compression

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3
Q

in sound waves, the layers of air particles that are spread apart (between compression)

A

rarefaction’s

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4
Q

vibrations of particles in the air

A

sound waves

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5
Q

number of vibrations in one second, or the number of wavelengths passing in one second

A

frequency

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6
Q

unit of frequency; its abbreviation is Hz. One hertz is equal to one vibration every second

A

hertz

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7
Q

the highness or lowness of a sound. The pitch that you hear depends on the frequency of the vibrating air

A

pitch

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8
Q

distance between two neighboring crests or troughs of a wave. This is the distance between two particles vibrating in step.

A

wavelength

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9
Q

maximum distance that a particle moves away from its undisturbed position

A

amplitude

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10
Q

longer-lasting sound caused by repeated reflection from hard surfaces

A

reverberation

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