National Science Olympiad Forum By SOF Olympiad Trainer - Page 645

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is B because embankments prevent flooding of fields.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is C because Calcium makes our bones and teeth strong.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
B

Ans 2:

Class : Class 6
I think it is syringe in diagram X.

Ans 3:

Class : Class 10
Answer is B solid cannot be compressed

Ans 4:

Class : Class 6

Ans 5:

Class : Class 4
D

Ans 6:

Class : Class 6
Answer is D

Ans 7:

Class : Class 6
Dear friends, the answer is D. There has been an error by the SOF team. Cod liver oil is a liquid, so it will flow out. As diagram Z is showing precisely that, the answer is D.

Ans 8:

Class : Class 3
Alright, so umm seriously the answer should be C also in the question Diagram Y. So, here it is cod liver oil which is semi-liquid = Half liquid and half solid. U can push it a little bit so the answer is C. In the book, it is turmeric powder and the answer is showing B too! I mean powder like seriously. The answer in the book should be D also in the book called Diagram Z. It is POWDER!!!!!!!!!!!!!!!!!!!! Like seriously Powder! They need to understand before writing the question in the book.

Ans 9:

Class : Class 5

Ans 10:

Class : Class 4
LIQIUDS CAN NOT BE COMPRESSED. SO COD LIVER OIL IS IN SYRINGE XXXXXXXX @ RAJVEER

Ans 11:

Class : Class 7
the answer is B, you can do the question and see the answer

Ans 12:

Class : Class 4
I got it right

Ans 13:

Class : Class 10
Answer is B solid cannot be compressed

Ans 14:

Class : Class 4

Ans 15:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
c is the answer

Ans 2:

Class : Class 10
pulling force means attracting force

Ans 3:

Class : Class 6
(C) should be the ans as .IF the like pole meets each other than they will repel each other

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
It is wrong because they did not ask the total number of poles 😏

Ans 2:

Class : Class 6
6 should be answer

Ans 3:

Class : Class 10

Ans 4:

Class : Class 6

Ans 5:

Class : Class 7
no it is 12 as one piece has two poles so north poles and south poles =6 6=12

Ans 6:

Class : Class 9
IT is not correct .... because they did not ask total number of poles ....it should be A {SIX}

Ans 7:

Class : Class 6
a

Ans 8:

Class : Class 8

Ans 9:

Class : Class 6

Ans 10:

Class : Class 9
It is incorrect as there are six north poles and six south poles present in a magnet if it is broken into six pieces

Ans 11:

Class : Class 8
it is wrong, see 12 is the sum of north and south poles but 6 should be the answer!!

Ans 12:

Class : Class 7
THE ANSWER HOULD BE 6 booooooor

Ans 13:

Class : Class 6
it should be 6

Ans 14:

Class : Class 10
UTSAV C PATEL from Podar International School SHIVAMOGAClass;It is wrong answer as they did not ask the total number of poles

Ans 15:

Class : Class 9
Wrong

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
Q or R?????? PLEASE EXPLAIN MASTER ANSWER!

Ans 2:

Class : Class 9
At first, I also thought that it will be A but if you see the figure closely, you can see that the magnet first comes in contact with point Q, it is rubbed till R and is then lifted at R point. So, Point Q would be the north pole and the point R would be the south pole

Ans 3:

Class : Class 6
The correct answer is (B),Q because the magnetic contact starts on Q and not on P.

Ans 4:

Class : Class 7
The correct answer is (B) because Q is the first point of contact.

Ans 5:

Class : Class 6
IT WILL BE P!

Ans 6:

Class : Class 7
it will be P!!!!!!!!!!!!!

Ans 7:

Class : Class 10
The magnet first makes contact with Q, so, it is the North Pole of the magnet

Ans 8:

Class : Class 8
it has started magnetising from Q SO THATS WHY IT IS TELLING THAT Q WILL BE THE NORTH SEEKING POLE.

Ans 9:

Class : Class 9
Will P be the North Pole or Q? So confusing!!🤔🤔

Ans 10:

Class : Class 7

Ans 11:

Class : Class 8
B IS A WRONG ANSWER.

Ans 12:

Class : Class 6
I didnt understand how it is R, can someone explain? Because according to me, the first point of contact is Q, but maybe that's not how it works....

Ans 13:

Class : Class 8
I agree with jigishal

Ans 14:

Class : Class 7
In the above process of magnetisation, the magnet makes its first contact with the iron rod on place R, so R would be the North pole of the magnetised iron bar.

Ans 15:

Class : Class 8
The answer is B

Ans 16:

Class : Class 7
The answer is P as you can clearly see the iron rod should allow the magnetism to flow like what happens when you chain a nail, even though you are affecting only the top part the whole screw is affected hence proving the answer is wrong

Ans 17:

Class : Class 7
A

Ans 18:

Class : Class 7
Sorry R would be the south pole because of the reason:Q becomes the North pole, and R, where the magnet is lifted becomes the south pole.

Ans 19:

Class : Class 6
N POLE ALWAYS GIVE THAT'S WHY A

Ans 20:

Class : Class 6
As north seeking pole is geographic south pole so R is north seeking pole. so , basically the south pole is the north seeking pole and as the north pole is facing downwards and starting with Q so south pole will be R . Hence, R is the north seeking pole and option C is the correct option.

Ans 21:

Class : Class 9
Yes it should be A ......because it is not possible that some of the iron bar is magnet and some is iron ....in the given figure starting of the stroke is point is Q but before that is point P which is starting of the rod so the CORRECT answer is A ..

Ans 22:

Class : Class 9
see the solution the magnet gets in contact with q so it is the correct ans

Ans 23:

Class : Class 7
The poles are end point of the magnet ,so the north pole should be P.

Ans 24:

Class : Class 7
A

Ans 25:

Class : Class 6
A IS TH CORRECT ANSWER. In the figure they started stoking the iron piece from point P which is the starting of the iron rod. so the correct answer is A.....

Ans 26:

Class : Class 8
If you clearly notice, the arrow is first coming in contact with Part Q, and the arrow is above in Part P. First, the magnet comes in contact with part Q, so when the iron rod is magnetised, Part Q will be North pole.

Ans 27:

Class : Class 9
It should be a

Ans 28:

Class : Class 6
AS NORTH POLE INTRODUCED AT Q PART OF THE IRON ROD SO Q WILL BE NORTH POLE.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
It was not there. ;)

Ans 2:

Class : Class 5
who knows they will give or not give

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 2:

Class : Class 7
C

Ans 3:

Class : Class 5

Ans 4:

Class : Class 3
The answer is c

Ans 5:

Class : Class 3
oh I thinked it is (A)

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Subject :NSO    Class : Class 6

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