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bribaby
bribaby asks:
Q:

Which of the following is not an example of an electromagnetic wave?

   A. Microwave
   B. Sound wave
   C. Radio wave
   D. X-ray

In Topics: Helping my child with science
> 60 days ago

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bob
bob , Parent writes:
Even if I knew nothing about electromagnetic waves I'd look for one of these items that I do understand at least a little and try to put it on the "is electromagnetic wave" or "is not electromagnetic wave."  This is a good strategy for multiple choice questions.  Another strategy is to look for two things that are a lot alike and then you can put both of them on the "is not the single item" list - in this case, "is not electromagnetic wave."

Our eardrums and other parts of our inner ear convert vibrations of the air into nerve impulses that we interpret as sound.  Clap your hands and you are sending shockwaves through the air and these waves strike your eardrums and cause this who "hearing" process to happen.  Education.com has an interesting activity that shows the mechanical action of sound waves, link is below.  The "Tin can telephone" activity demonstrates this, too.  Second link below.

Microwaves and radio waves are nearly the same, just different frequencies - in fact, there is a huge amount of data transmission on Earth using microwaves and has been for decades.  X-rays are of the same ilk, but far higher in frequency.  "Light" is another common item that is of the same nature.  None of these vibrate the air, since they all pass through the vacuum of space.  Therefore they must be different.

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tinkaabellz12
tinkaabellz12 writes:
my answer is (D) x-ray
Resources:
> 60 days ago

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C-Jay
C-Jay writes:
Sound wave
> 60 days ago

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Vamp_girl6
Vamp_girl6 , Student writes:
I'm goin to go wit {D.} X-ray...
> 60 days ago

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tariq
tariq writes:
B.Sound wave
> 60 days ago

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Maverick
Maverick , Teacher writes:
Electromagnetic waves are produced by fluctuating electric and magnetic fields.  It can be accomplished by oscillating charges.  Microwave, radio waves, and X-rays are some of the examples of electromagnetic radiation. Sound waves, on the other hand, are not part of electromagnetic wave spectrum; they are longitudinal compression waves.  So, the answer to your question is B.
> 60 days ago

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khaalas
khaalas writes:
sound wave
> 60 days ago

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amandabeetchx3
amandabeetc... writes:
i think it is going to be D. X-RAY LMFAO ;P
> 60 days ago

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LoriDay
LoriDay , Teacher writes:
sound wave
> 60 days ago

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Karenmom
Karenmom writes:
Obviously the answer is (B) Sound wave

I've included a couple of links that better explains this, the first explains electromagnetic spectrum, the second how hearing works.

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AfomyaBekele
AfomyaBekele writes:
Sound Wave
> 60 days ago

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LaChandahare
LaChandahare writes:
B.  Sound waves are mechanical waves.
> 60 days ago

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nayana-09
nayana-09 writes:
B SOUND WAVE
> 60 days ago

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cadizclub
cadizclub writes:
a.microwave
> 60 days ago

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rudolffairbanks
rudolffairb... writes:
Hello friend, out of above listed waves sound wave is not an example of an electromagnetic wave.
> 60 days ago

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geneis
geneis writes:
sound wave
> 60 days ago

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Nice1ne
Nice1ne writes:
a.Microwave
> 60 days ago

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daffodil63
daffodil63 writes:
radio wave
4 days ago

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