In Insects

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

Stupid little genius Insects Supervisor
Cicada
In Science

How many feet do sound waves travel per second?

  At sea level in air sound travels approximately 1125 ft/s, however it changes depending on the material in which it travels. For instance, it travels faster in water.

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In Physics

What does the pitch of a sound wave depend on?

The frequency of the wave. Higher frequency means "higher" pitched sound and lower frequency means "lower" pitched sound.

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