Vibrations primarily create sound waves. When an object vibrates, it causes the surrounding air (or other mediums) to move, resulting in pressure waves that travel through the medium. These pressure waves are what we perceive as sound.
While vibrations can also be associated with energy and can lead to the generation of electricity in certain contexts (like in piezoelectric materials), their most direct and noticeable result is the creation of sound waves. Wavelengths are a characteristic of the sound waves produced by vibrations, but they do not represent what is created by the vibrations themselves.
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