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 microphone records the sound.

a. The microphone changes the wave from an electromagnetic wave to a mechanical wave.

b. The recorded waves are electromagnetic waves.

c. The recorded waves are mechanical waves.


d. The microphone changes the wave from mechanical wave to an electromagnetic wave.


e. The microphone does not change the wave type.

f. The frequency or amplitude of the waves will not change in the microphone.

g. The frequency or amplitude of the waves will change in the microphone.

Answer 1

c. The recorded waves are mechanical waves.

e. The microphone does not change the wave type.

g. The frequency or amplitude of the waves will change in the microphone.

These statements are true. The microphone records the sound waves as mechanical waves, which require a medium to travel through, such as air or water. The microphone does not change the type of wave from mechanical to electromagnetic, or vice versa. The frequency and amplitude of the sound waves will change as they pass through the microphone, depending on the characteristics of the source producing the sound.