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Sound Waves Explained

Sound is a pressure wave that requires a medium, such as air, water or metal, to propagate from one location to another through vibration. It cannot travel through a vacuum. Sound waves have characteristics of amplitude, frequency and wavelength that determine properties like loudness, pitch and frequency. Amplitude refers to the maximum height of the wave and determines loudness, while frequency describes pitch and is measured in Hertz (cycles per second). Wavelength is related to frequency, with longer wavelengths producing lower pitches.

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161 views1 page

Sound Waves Explained

Sound is a pressure wave that requires a medium, such as air, water or metal, to propagate from one location to another through vibration. It cannot travel through a vacuum. Sound waves have characteristics of amplitude, frequency and wavelength that determine properties like loudness, pitch and frequency. Amplitude refers to the maximum height of the wave and determines loudness, while frequency describes pitch and is measured in Hertz (cycles per second). Wavelength is related to frequency, with longer wavelengths producing lower pitches.

Uploaded by

ShōyōHinata
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Sound

Sound is a wave that is created by vibrating objects and propagated through a medium from one
location to another. Sound can travel through any medium, but it cannot travel through a vacuum.
There is no sound in outer space. Sound is a variation in pressure. A region of increased pressure on a
sound wave is called a compression. A region of decreased pressure on a sound wave is called a
rarefaction. There are different characteristics of waves that can be measured. These characteristics are
amplitude, frequency, and wavelength. Amplitude is the maximum height of the wave. Amplitude goes
with intensity, loudness, or volume. The amplitude determines how loud a sound will be. Greater
amplitude means the sound will be louder. Next is frequency, the frequency of a sound wave is called
pitch. High frequency sounds are said to be "high pitched" or just "high"; low frequency sounds are said
to be "low pitched" or just "low". Humans are generally capable of hearing sounds between 20 Hz and
20 kHz. Sounds with frequencies above the range of human hearing are called ultrasound. Sounds with
frequencies below the range of human hearing are called infrasound. Frequency is measured as the
number of wave cycles that occur in one second. The unit of frequency measurement is Hertz (Hz). A
frequency of 1 Hz means one wave cycle per second. A frequency of 10 Hz means ten wave cycles per
second, where the cycles are much shorter and closer together. Wavelength determines the pitch, or
frequency of the sound. Usually the longer the wavelength the lower the frequency and the shorter the
wavelength the higher the frequency.

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