refractors
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Yes, waves do carry sound.
Materials that are good reflectors of sound include:Polished woodBricksGlassSmooth surfacesHard objects are the good reflectors of sound because particles bounce straight off them. If they are smooth, the sound reflects at the same angle it hit the surface and is not spread out.
Sound is a kind of energy.Sound is a kind of energy.Sound is a kind of energy.Sound is a kind of energy.
Any/every material can carry sound.
The sound is made of vibration so as it moves, it vibrates the material to carry the sound. This also depends on what kind of material.
Of the four materials, wire will carry the sound best because it is the most dense.
refractors
I assume you meant "density" More dense materials, such as solids, generally carry sound faster than less dense materials such as air
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Sound.
All materials carry sound. The harder the better usually. In rooms that need to be sound-proof, the whole room is suspended from the building structure.
Insulator materials will not carry or conduct electricity.
Yes, they absolutely can and do sound different. An amplifiers sound is colors by the materials used to build it. Is it tube? Solid State? What kind of electronics are in it? Etc. Etc.
Yes, waves do carry sound.
No they do not carry Yes sound travels