National Science Olympiad Forum By SOF Olympiad Trainer - Page 715

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
The correct answer is c, not d lost a frikin mark

Ans 3:

Class : Class 4

Ans 4:

Class : Class 8
The correct answer is C not D........ their mistake ..... you need to solve

Ans 5:

Class : Class 7
Correct answer will be option no. C why it's written option no. D?

Ans 6:

Class : Class 9
*NO CLEAR EXPLANATION IS GIVEN

Ans 7:

Class : Class 6
yes it should be c as the metal bar is attracting the two magnetic bars.

Ans 8:

Class : Class 8
The metal is a magnetic material and like poles repel each other, so there is no conclusion about magnetic field passing through the metal

Ans 9:

Class : Class 6
c is correct since the two magnets seem to be moving to the metal by the angle of the suspension string in the diagram. That means the partition is soft metal

Ans 10:

Class : Class 9
C is correct. Not D. SOF WHY IN THE WORLD WHY ON EARTH YOU MAKE SUCH MISTAKES? THAT TOO NO EXPLANATION GIVEN

Ans 11:

Class : Class 9
the correct answer is not d......................... their mistake they always make such kind of mistakes

Ans 12:

Class : Class 10
magnetic field can pass through metal. but her is such condition where metal is magnetic so it attract both magnet

Ans 13:

Class : Class 6
metals are ferrous so they redirect

Ans 14:

Class : Class 8

Ans 15:

Class : Class 9
ya clearly the magnets are getting attracted to the metal it should be option C.

Ans 16:

Class : Class 6
mukli

Ans 17:

Class : Class 6
correct answer=c

Ans 18:

Class : Class 8

Ans 19:

Class : Class 6
1st a fall the solution is wrong .By any chance (if it could be0.000000000000000000000000001)so how striking process is working . It passes magnetic field. how sus

Ans 20:

Class : Class 6
Basically it’s c because you see the magnets are clearly attracting

Ans 21:

Class : Class 1
Ans. is option C because magnets are attracting the metal piece. They are not attracting each other. SOF Olympiad Trainer, you need to solve this

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Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 2:

Class : Class 10
It should be A

Ans 3:

Class : Class 9

Ans 4:

Class : Class 8
In my opinion, the answer to this question should by option (A), not option (C). The line is not straight, so it should be non-uniform motion, as a distance-time graph of a body moving in uniform motion should have a straight line.

Ans 5:

Class : Class 6
answer should be A not C

Ans 6:

Class : Class 9
IT SHOULD BE A

Ans 7:

Class : Class 8
It should be A as uniform motion is a single straight line, here there are 3 discrete lines with different slopes. Clearly, the velocity changes at the bold points on the graph, making this non-uniform motion.

Ans 8:

Class : Class 8
a is right

Ans 9:

Class : Class 8
I don't think it could be 'C' since uniform motion generally shows a straight line. Could be 'A'

Ans 10:

Class : Class 10
C

Ans 11:

Class : Class 8

Ans 12:

Class : Class 8
How it should be option a

Ans 13:

Class : Class 9
its not a straight line...thus answer SHOULD be A and not C

Ans 14:

Class : Class 6
It should be A not C.

Ans 15:

Class : Class 10
Shouldn't the answer be option A instead of C as it is clearly not a straight line?

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
Please explain it

Ans 2:

Class : Class 10
ans is C. in first row the head count (from right to left ) is 1+1=2, in second row the head count (from right to left ) is 2+1=3,hence in the third row the head count will be 0+2=2, hence the answer is C.

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Option D because Kinetic energy means work done. Therefore, it can be said that work is done on body or can be said mass. W = F*D(Force * Displacement). Therefore it is independent of mass.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
Sun 's surface is about 6000 degrees celcius and blue star is 28000 degrees celcius so to find the answer 28000 -6000 which equals to 22000degrees celcius is blue star hotter than Sun .

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
first of all the answer itself is wrong even if its B shouldn't be q repelling p not vice versa

Ans 2:

Class : Class 10
B is the answer because like poles repel.

Ans 3:

Class : Class 6
Tricky

Ans 4:

Class : Class 10
the fig is wrong because the in the fig there should be repeltion and they have given attraction.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Anybody has an explanation?

Ans 2:

Class : Class 8

Ans 3:

Class : Class 6
Landfills pollute land and water so they are located on the outskirts of the city

Ans 4:

Class : Class 8

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Its a Mosquito. It sucks blood. The answer is A.

Ans 2:

Class : Class 6
D

Ans 3:

Class : Class 4

Ans 4:

Class : Class 3
The correct ans is D

Ans 5:

Class : Class 7

Ans 6:

Class : Class 4
I’m saying the same term of Anush nikam

Ans 7:

Class : Class 4
C'mon . In correct answer they are showing B and in solution they are showing A . I mean , at least somebody should check the system for errors

Ans 8:

Class : Class 3
It’s mosquito..it sucks blood so answer is A

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Subject :NSO    Class : Class 5

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