38. What can be said about the sound wave's energy when the volume or amplitude of the speaker is increased?
A. The wave's energy is high when the volume is increased.
B. The wave's energy is low when the volume is increased.
C. The wave's energy is not related to the amplitude.
D. The wave's energy remains the same.
A. The wave's energy is high when the volume is increased.
B. The wave's energy is low when the volume is increased.
C. The wave's energy is not related to the amplitude.
D. The wave's energy remains the same.
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Answer:
The average amount of energy passing through a unit area per unit of time in a specified direction is called the intensity of the wave. As the amplitude of the sound wave increases, the intensity of the sound increases.