was the music loud enough to be hear at the starting distance
Answers
Answer:
The correct answer of this question is the sound intensity decreases inversely proportional to the squared distance.
Explanation:
Given - The music loud enough to be hear at the starting distance .
To Find - Write what was the music loud enough to be hear at the starting distance.
The sound intensity falls in inverse proportion to the squared distance, or with 1/r2 from the measurement point to the sound source, so that doubling the distance reduces the sound intensity to a fourth of its initial value.
The loudness of a valid is determined by how loud or mild it appears to a listener. The loudness of sound is governed by the depth, or amount of energy, in sound waves.
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Answer:
It’s All About Energy
Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity of the sound waves. Intensity is a measure of the amount of energy in sound waves. The unit of intensity is the decibel (dB).
Explanation:
Decibel Levels
As decibel levels get higher, sound waves have greater intensity and sounds are louder. For every 10-decibel increase in the intensity of sound, loudness is 10 times greater. Therefore, a 30-decibel “quiet” room is 10 times louder than a 20-decibel whisper, and a 40-decibel light rainfall is 100 times louder than the whisper. High-decibel sounds are dangerous. They can damage the ears and cause loss of hearing.
Amplitude and Distance
The intensity of sound waves determines the loudness of sounds, but what determines intensity? Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves. Greater amplitude waves have more energy and greater intensity, so they sound louder.
As sound waves travel farther from their source, the more spread out their energy becomes. You can see how this works in the Figure below. As distance from the sound source increases, the area covered by the sound waves increases. 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 you move farther from the source.
Summary
Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity, or amount of energy, in sound waves. The unit of intensity is the decibel (dB).
As decibel levels get higher, sound waves have greater intensity and sounds are louder. For every 10-decibel increase in the intensity of sound, loudness is 10 times greater.
Intensity of sound results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound.
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