How fast does sound travel through a vacuum?

Question

How fast does sound travel through a vacuum??  
A. 25 m/s  
B. 25 m/s  
C. 222 m/s  
D. 0 m/s

Accepted Answer

Correct Answer: (D)0 m/s. 
Rationale: Sound cannot travel through a vacuum, so its speed is 0 m/s in such an environmentA) 25 m/s:Sound is a mechanical wave that requires a medium (solid, liquid, or gas) to propagate. In a vacuum, there are no molecules or particles to transmit the vibrations that sound waves rely on. Therefore, sound cannot travel through a vacuum at any speed, including 25 m/s. This answer is incorrect.B) 331.4 m/s:This is the approximate speed of sound in air at 0°C. Sound travels at different speeds depending on the medium through which it propagates. However, this value is for air and does not apply to a vacuum, where sound cannot travel at all.C) 222 m/s:This is an incorrect answer. It could represent the speed of sound in another medium, but sound cannot travel through a vacuum. Sound requires molecules to vibrate and transmit energy, and there are no molecules in a vacuum.D) 0 m/s:Sound requires a medium to propagate, and in a vacuum (which has no particles), there is no way for sound waves to travel. The speed of sound in a vacuum is therefore 0 m/s, because sound cannot travel at all in such an environment.Conclusion: In a vacuum, sound cannot propagate, and its speed is 0 m/s, making D) 0 m/s the correct answer.

How fast does sound travel through a vacuum?

A
25 m/s

B
25 m/s

C
222 m/s

D
0 m/s

Sound cannot travel through a vacuum, so its speed is 0 m/s in such an environment

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Related Questions

How fast does sound travel through a vacuum?

A 25 m/s B 25 m/s C 222 m/s D 0 m/s

Sound cannot travel through a vacuum, so its speed is 0 m/s in such an environment

Topic Flashcards

Mini Quiz

Related Questions

A
25 m/s

B
25 m/s

C
222 m/s

D
0 m/s