9. What happens to the loudness of the sound when as one goes awa
from it?
A. remains the same
B. increases gradually
C. decreases gradually
D. fades abruptly
from it?
A. remains the same
B. increases gradually
C. decreases gradually
D. fades abruptly
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Answer:
D. fades abruptly
Explanation:
As sound waves travel farther from their source, the more spread out their energy becomes. The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less. This explains why even loud sounds fade away as one goes away from it.