A ringing alarm clock is put under a glass jar. The air is slowly removed from the space around it. What will happen as the air is removed? (1 point)

Question

Responses

The clock will slowly become quieter and will ultimately fade from view.
The clock will slowly become quieter and will ultimately fade from view.

The clock will slowly become less visible, until you can only hear it.
The clock will slowly become less visible, until you can only hear it.

The appearance of the clock will not change, but its sound will become fainter.
The appearance of the clock will not change, but its sound will become fainter.

The appearance of the clock and the sound of the clock will not change.
The appearance of the clock and the sound of the clock will not change.

Answer 1

The correct response is:

The appearance of the clock will not change, but its sound will become fainter.

As air is removed from the jar, sound waves have less medium to travel through, which results in the sound from the alarm clock becoming quieter. However, the visual appearance of the clock itself will remain unchanged.