Sound waves are generated by vibrating objects from "summary" of Fundamentals of Physics, Volume 1 (Chapters 1 - 20) by David Halliday,Robert Resnick,Jearl Walker
When an object vibrates, it creates disturbances in the surrounding air, causing the air particles to also vibrate. These vibrating air particles transmit the disturbance in the form of a wave known as a sound wave. The sound wave travels through the air until it reaches our ears, where it is detected as sound. The frequency of the vibration of the object determines the pitch of the sound produced. For example, a higher frequency vibration results in a higher pitch sound, while a lower frequency vibration produces a lower pitch sound. This relationship between frequency and pitch is fundamental to our perception of sound. In addition to frequency, the amplitude of the vibration of the object affects the loudness of the sound produced. A larger amplitude vibration results in a louder sound, while a smaller amplitude vibration produces a softer...
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