Sound
What is Sound?
Simply put, sound is a type of mechanical wave. This waves is created by a vibrating object. The wave then travels to our ear. Once the wave enters our ear, it ends up vibrating a series of parts of our ear. These parts turn mechanical energy into elctrical energy. Nerves then carry the electrical energy to our brain where it interpretted as sound.
A website that presents a nice set of definitions for sound: Acoustic FAQ
What type of wave is sound?
Sound is a longitudinal wave. The wave travels as a series of compressions and rarefactions from its source to its reciever.
Page from The Physics Classroom with nice graphics showing a longitudinal wave.
Page from The Physics Classroom with nice graphics showing a pressure wave
How can we "see" these vibrations?
The Art of Sound
Guitar string in slow motion
What are the properties of Sound?
What are the terms used to describe sound?
What is Resonance?
What is the Doppler Effect?
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