Question

A new band sensation is playing a concert and recording it for a live album to be released this summer. Select all the statements that are true for when the audience hears the sound.

a. The frequency or amplitude of the sound waves will not change.


b. Sound waves that the audience hears are electromagnetic waves.


c. Hearing the sound does not change the wave type.


d. The frequency or amplitude of the sound waves could change as the song plays.


e. Hearing the sound waves changes the wave from mechanical wave to an electromagnetic wave.


f. Hearing the sound waves changes the wave from an electromagnetic wave to a mechanical wave.


g. Sound waves that the audience hears are mechanical waves.

Answer 1

a. The frequency or amplitude of the sound waves will not change.

d. The frequency or amplitude of the sound waves could change as the song plays.

g. Sound waves that the audience hears are mechanical waves.

These are the true statements.

others are false.

b. Sound waves that the audience hears are not electromagnetic waves. Sound waves are a type of mechanical wave, which means that they require a medium to travel through, and in this case, the medium is air.

c. Hearing the sound does not change the wave type. The wave type remains a mechanical wave, even after it reaches the audience's ears.

e. and f. are also not true, as the process of hearing sound does not change the wave type from mechanical to electromagnetic or vice versa.