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 4
I got it right

Ans 2:

Class : Class 8

Ans 3:

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 4:

Class : Class 4
D

Ans 5:

Class : Class 6
Answer is D

Ans 6:

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

Ans 7:

Class : Class 10
Answer is B solid cannot be compressed

Ans 8:

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

Ans 9:

Class : Class 6
B

Ans 10:

Class : Class 10
Answer is B solid cannot be compressed

Ans 11:

Class : Class 4

Ans 12:

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

Ans 13:

Class : Class 5

Ans 14:

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 15:

Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

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

Ans 2:

Class : Class 6
c is the answer

Ans 3:

Class : Class 10
pulling force means attracting force

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

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 3:

Class : Class 6
a

Ans 4:

Class : Class 9
Wrong

Ans 5:

Class : Class 6
6 should be answer

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

Class : Class 10

Ans 11:

Class : Class 7
THE ANSWER HOULD BE 6 booooooor

Ans 12:

Class : Class 8

Ans 13:

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 14:

Class : Class 6

Ans 15:

Class : Class 6
it should be 6

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Subject :NSO    Class : Class 6

Ans 1:

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 2:

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 3:

Class : Class 8
The answer is B

Ans 4:

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 5:

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

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

Ans 8:

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

Ans 9:

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 10:

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 11:

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 12:

Class : Class 8
B IS A WRONG ANSWER.

Ans 13:

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 14:

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 15:

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

Ans 16:

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

Ans 17:

Class : Class 6
IT WILL BE P!

Ans 18:

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

Ans 19:

Class : Class 7

Ans 20:

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

Ans 21:

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

Ans 22:

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 23:

Class : Class 9
It should be a

Ans 24:

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

Ans 25:

Class : Class 8
I agree with jigishal

Ans 26:

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

Ans 27:

Class : Class 7
A

Ans 28:

Class : Class 7
A

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Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Class : Class 8
It was not there. ;)

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Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

Class : Class 5

Ans 3:

Class : Class 3
The answer is c

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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