(a) The loudness of a sound wave is determined by its amplitude. A loud sound has a higher amplitude, while a quiet sound has a lesser amplitude.
(b) The amplitude is proportional to the square of the loudness.
(a) The loudness of a sound wave is determined by its amplitude. A loud sound has a higher amplitude, while a quiet sound has a lesser amplitude.
(b) The amplitude is proportional to the square of the loudness.