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Physical Science

Waves and their Applications in Technologies for Information Transfer

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Waves and their Applications in Technologies for Information Transfer: Sound

Frequency and Its Role in Pitch

Description

Frequency and Its Role in Pitch

Every sound you hear is made by vibrations moving through the air. These vibrations create sound waves. The frequency of a sound tells you how fast the wave is vibrating. It is measured in hertz (Hz), or the number of vibrations per second. The faster the vibratio...

Transcript

Have you noticed how a mosquito buzz sounds different from a drumbeat?

That difference is called pitch—it is what makes a sound seem high or low. Pitch depends on a property of sound waves called frequency.

Frequency is the number of vibrations that occur in a certain amount of time. For example, a tight violin string vibrates faster...

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