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In Insects

Name an insect which makes high pitched sounds creating almost 1000 sound waves per second?

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What animals make high pitch sounds?

toothed whales (dolphins etc) that echo-locate and bats thats echo-locate. Mice are pretty high pitched but not as high as the echo-locators.
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In Physics

What determines the pitch of a sound wave?

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Why is sound low and high pitch?

Because the rate of change in the pressure in the air differs: high pitch has a rapid vibration, low pitch a slow vibration. Humans can usually hear from a low of 20 Hz (cycl (MORE)

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Why do tighter drum heads make high pitched sounds?

  Sound from a drum is created by the drum head vibrating up and down, and thus vibrating the air. Higher rates of vibration correspond to higher pitched sounds. So, the s (MORE)