National Science Olympiad Forum By SOF Olympiad Trainer - Page 639

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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 5

Ans 2:

Class : Class 6
Answer is D

Ans 3:

Class : Class 6

Ans 4:

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 5:

Class : Class 4
I got it right

Ans 6:

Class : Class 6
B

Ans 7:

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

Ans 8:

Class : Class 10
Answer is B solid cannot be compressed

Ans 9:

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

Ans 10:

Class : Class 4

Ans 11:

Class : Class 10
Answer is B solid cannot be compressed

Ans 12:

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

Ans 13:

Class : Class 4
D

Ans 14:

Class : Class 8

Ans 15:

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.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10
pulling force means attracting force

Ans 2:

Class : Class 6
c is the answer

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 8

Ans 2:

Class : Class 9
Wrong

Ans 3:

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 4:

Class : Class 6

Ans 5:

Class : Class 7
THE ANSWER HOULD BE 6 booooooor

Ans 6:

Class : Class 6

Ans 7:

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

Ans 8:

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 9:

Class : Class 6
a

Ans 10:

Class : Class 10

Ans 11:

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

Ans 12:

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

Ans 13:

Class : Class 6
it should be 6

Ans 14:

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

Ans 15:

Class : Class 6
6 should be answer

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Subject :NSO    Class : Class 6

Ans 1:

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

Ans 2:

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

Ans 3:

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 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

Class : Class 9
It should be a

Ans 8:

Class : Class 6
IT WILL BE P!

Ans 9:

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

Ans 10:

Class : Class 8
I agree with jigishal

Ans 11:

Class : Class 8
The answer is B

Ans 12:

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 13:

Class : Class 7
A

Ans 14:

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 15:

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

Ans 16:

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 17:

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 18:

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 19:

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

Ans 20:

Class : Class 8
B IS A WRONG ANSWER.

Ans 21:

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 22:

Class : Class 7

Ans 23:

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

Ans 24:

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

Ans 25:

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 26:

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

Ans 27:

Class : Class 7
A

Ans 28:

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 ..

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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:

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

Ans 2:

Class : Class 3
The answer is c

Ans 3:

Class : Class 5

Ans 4:

Class : Class 7
C

Ans 5: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 6

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