An Introduction to How Sound Works

Sound is the result of the energy that is created when air molecules are vibrated. When a speaker cone moves forwards and backwards, a person speaks, or a guitar string vibrates, it causes air molecules to move in sympathy, which in turn causes our eardrums to vibrate. The vibrations in our eardrums are transmitted through the middle ear bones to the inner ear, where they are converted into electrical signals that are interpreted by our brains as the sounds we hear.