The amplitude of a sound wave refers to the size or magnitude of its vibrations. A high amplitude indicates that the sound wave has a large amount of energy and thus produces a loud or intense sound. In contrast, a low amplitude indicates a smaller amount of energy and produces a softer or less intense sound. In terms of perception, a high amplitude sound wave may be perceived as louder or more prominent, while a low amplitude sound wave may be perceived as quieter or less noticeable.
