I was trying to figure what propagate meant.

Can sound exist in a vacuum? Why or why not?

Sound is a matter wave, it requires matter to propagate.

Yes but i am 10 and trying to figure it out, i am sorry if i upset you.

Did you read, or think about my response? It told you the answer.

http://www.onelook.com/?w=propagate&ls=a

I apologize for any confusion. Let's start by explaining what "propagate" means.

To propagate means to spread, extend, or transmit something. In the context of sound, it refers to how sound waves travel or move from one place to another.

Now, let's move on to your second question: Can sound exist in a vacuum?

No, sound cannot exist in a vacuum. Sound is a mechanical wave that requires a medium, such as air, water, or solids, to propagate. This is because sound waves are created through the vibration or movement of particles in the medium.

In a vacuum, there are no particles or molecules to vibrate, so there is no medium for sound waves to travel through. Therefore, sound cannot propagate or travel in a vacuum. Space is an example of a vacuum where sound cannot be heard because there is no air or any other medium for sound waves to travel through.

I hope this explanation helps you understand why sound cannot exist in a vacuum. If you have any more questions or need further clarification, feel free to ask.