Question

Sound energy passing per second through a unit area held perpendicular is called a) intensity b) frequency c) amplitude d) quality

Answer 1

Answer:

c). Amplitude is the right one.

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Answer 2

Answer:

The answer is (A) Intensity.

Explanation:

The sound energy passing per second through a unit area held perpendicular is Intensity. It is measured with units of work or energy that is Joules. It is a measurable quantity and can be by auditory equipment. The intensity can be compared to another by taking the ratio of their powers but their frequencies have to be the same. When the ratio is 10 the difference in intensity is called 1 Bel. It is named after the great American inventor Alexander Graham Bell.