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 recorded sound moves through the speaker.

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

b. The speaker changes the wave from an electromagnetic wave to a mechanical wave.

c. The waves from the speaker are mechanical waves.

d. The frequency or amplitude of the waves could change.

e. The speaker changes the wave from mechanical wave to an electromagnetic wave.

f. The waves from the speaker are electromagnetic waves.

g. The speaker does not change the wave type.

Answer 1

c. The waves from the speaker are mechanical waves.

d. The frequency or amplitude of the waves could change.

g. The speaker does not change the wave type.

These statements are true. The waves that come out of the speaker are mechanical waves, meaning they require a medium to travel through, such as air or water. The frequency and amplitude of the waves could change, depending on the characteristics of the sound being played through the speaker. The speaker does not change the type of wave from mechanical to electromagnetic, or vice versa.