Question

Light and Sound Waves Quick Check

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Question
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)
Responses

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

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

Answer 1

[AI-generated answer — Explain Bot]

To answer this question, let's think about how sound waves and light waves behave in different mediums.

1. Sound waves: Sound waves require a medium (such as air, water, or solids) to travel through. When the air is slowly removed from the space around the ringing alarm clock, there will be less air molecules for the sound waves to vibrate and transmit through. As a result, the sound waves will have a harder time traveling from the clock to our ears, causing the sound to become fainter. So, the correct option would be: "The appearance of the clock will not change, but its sound will become fainter."

2. Light waves: Light waves can travel through a vacuum, which means they do not require a medium like sound waves do. Therefore, when the air is removed from the space around the clock, the light waves will not be affected. The appearance of the clock will not change since the light waves can still reach our eyes. So, the statement "The appearance of the clock and the sound of the clock will not change" is also correct.

In summary, the correct answer is that the appearance of the clock will not change, but its sound will become fainter.