Question

question 1 of 10
if you are seated in the back of a large auditorium and you cannot hear the speaker in the front, what aspect of sound needs to be altered to remedy the situation?
a. amplitude of sound.
b. velocity of sound
c. frequency of sound
d. spectrum of sound

Explanation:

• Amplitude of sound relates to its loudness. In a large auditorium, sound intensity (related to amplitude) decreases with distance. Increasing amplitude (loudness) makes the sound louder, so those in the back can hear.
• Velocity of sound depends on the medium (e.g., air temperature), not something altered to make sound louder over distance.
• Frequency relates to pitch (high/low), not loudness, so changing frequency won’t help with hearing the speaker.
• Spectrum of sound refers to the range of frequencies, which also doesn’t relate to making the sound louder for better audibility at a distance.

Answer:

A. amplitude of sound.