Properties of Sound Waves - Quiz Quiz

Question 1

If the amplitude of a wave increases by a factor of 4, how is the intensity changed?

Revolt · Accepted Answer

B: it increases by a factor of 16

Question 2

A sound wave with a power of 8 point 8 times 10 to the negative 4 power cap w leaves a speaker and passes through section A, which has an area of 5 point 0 m squared What is the intensity of sound in this area? open paren Intensity is equal to cap i is equal to the fraction with numerator cap p o w e r and denominator mathrm cap A r e A close paren

Revolt · Accepted Answer

B: 1 point 8 times 10 to the negative 4 power the fraction with numerator cap w and denominator m squared

Question 3

Which sound will most likely have the highest pitch?

Revolt · Accepted Answer

C: a whistle (1000 Hz)

Question 4

Which is the appropriate unit of measurement for pitch?

Revolt · Accepted Answer

A: mel

Question 5

Which best describes pitch?

Revolt · Accepted Answer

C: the number of cycles per second perceived by the human ear

Question 6

These graphs show measurements of the density of air as different sound waves pass a single point. Which sound wave will most likely be perceived as the loudest?

Revolt · Accepted Answer

B: Image with description A graph with time on the x axis and density of air on the y axis. There is a transverse wave that is very tall and same width.

Question 7

As the distance of a sound wave from its source quadruples, how is the intensity changed?

Revolt · Accepted Answer

B: it decreases by a factor of 16

Properties of Sound Waves - Quiz Quiz Answers

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