What is the main difference between mechanical and electromagnetic waves?

A. Mechanical weaves involved transfers energy; electromagnetic waves do not
B. Mechanical waves require a medium to travel in; electromagnetic waves do not*****
C. mechanical waves have amplitude and wave length; electromagnetic waves do not
D. Mechanical waves of speed and frequency; electromagnetic waves do not

I think it's b plz help and correct me if I'm wrong

49 answers

it is b
ok once I'm done with the 10 question quiz ill post the answers for anyone whoe needs them
1. B
2. C
3. C
4. D
5. D
6. A
7. B
8. C
9. D
10. C
For CA GT science grade 8 Quiz hope this helps
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Wait, im in grade 6 and mine is a quiz with 10 questions do you think its the same thing N/A
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wait im in 7 th grade XD
it was correct I got 100% tho so im not complainin
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Still works
bet
Still works
uh oh stinky
N/A is still right
1. B
2. C
3. C
4. D
5. D
6. A
7. B
8. C
9. D
10. C
IT WORKS STILL 🅱🆁🆄🅷
1. B- mechanical waves require a medium to travel in; electromagnetic waves do not
2. C- radio waves
3. C- x-rays have greater frequency that microwaves
4. D- 3 Hz
5. D- longitudinal, transverse, and surface
6. A- it is reflected
7. B- water particles
8. C- a 10 liter container that has 5000 molecules
9. D- they will be absorbed
10. C- wave B; wave A
if I messed up tell me plz and I'll fix it! but this should be right :P
still works bruh
Still works! 🙌🏽
Thank you everyone 😊 I got a 💯
STILL CORRECT JUST SAYING-
in six gradeand works 100%
yup, its the same
thx guys I have an A+ in sience from this website
Thank you everyone for your answers
Teachers shouldn’t make it difficult on us :/ that’s why some people have to cheat, I have a few mental problems that cause me to not being able to learn things as easy, it’s embarrassing for me to talk and type because I sound like a kidgardner This website helps me
Wait- some of my answers don't match with what you put. I better go and review the lesson before I submit my test.

After reviewing the lesson, I got 100! Thanks for posting the answers so kids like me can check and go back through the lesson when we don't match on answers. This tells me what to ask for help on in learning support.
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Thank youuu
Thanks, 100% correct
N/A was right, thanks!!!
N/A is right
This is not ok! I have reported this to the Connections Academy Consulor and my teacher. This website should be banned.
Not a cheater is right
Thank you guys so much! I got 100% and it still works :)
Nobody cares, fi you think this should be banned or not lol
Still correct in November 2020 @guy in a dog costume for CA Florida
that guy in a dog costume thank you.
N/A is correct
1. B
2. C
3. C
4. D
5. D
6. A
7. B
8. C
9. D
10. C
good luck 1/19/2020 (8:50) A.M.
It still works! 100%
thx
N/A got me 4/10
THX got 100%
N/A Is still correct!!!
100 PERCENT CORRECT
1. B
2. C
3. C
4. D
5. D
6. A
7. B
8. C
9. D
10. C

Is right!!
WSP G
"checking your work" means cheating in non-stupidian
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