Sound cannot travel through which of the following?
Correct answer: C. Vacuum
- A. Water
- B. Steel
- C. Vacuum
- D. Air
Explanation
Sound is a mechanical wave and requires a material medium whose particles can vibrate. A vacuum contains no particles, so sound cannot propagate through it. This is why astronauts must use radio, which is an electromagnetic wave and needs no medium.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Physics in Daily Life
Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
Practise Physics in Daily Life
343 free Physics in Daily Life MCQs from Everyday Science, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Everyday Science questions like this
Everyday Science is on 40 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.