The amplitude of a sound is the group of answer choices frequency of the sound. magnitude of displacement of a sound pressure wave. psychological aspect of sound related to timbre. amount of sound energy falling on a unit area.

magnitude of displacement of a sound pressure wave

Explanation:

The time spent in a complete cycle is called the period (T) measured in seconds and the number of cycles per second is called the frequency (f) and is measured in cycles per second or Hetz. The frequency is inverse to the period f = 1 / T. On the other hand, each segment of the rope has a certain amplitude (A). The amplitude is defined as the maximum displacement from the equilibrium position. The frequency is determined by the source, so that if the rope is agitated quickly, the frequency will be higher (high frequency) than if I stir it slowly (low frequency) than if I stir it slowly (low frequency) The amplitude is also determined by the source, so that if the end of the rope rises a lot from the horizontal or equilibrium position the amplitude will be large and vice versa.