Here's why:
* Amplitude refers to the maximum displacement of a wave from its resting position.
* A larger amplitude means a greater displacement, resulting in a stronger vibration.
* This stronger vibration translates to a louder sound.
Think of it like this: If you gently tap a drum, the drumhead vibrates slightly, producing a soft sound. But if you hit the drum hard, the drumhead vibrates much more, producing a loud sound.