National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
A

Ans 2:

Class : Class 4
Answer is A

Ans 3:

Class : Class 4
answer is A not B

Ans 4:

Class : Class 5
A

Ans 5:

Class : Class 3
Crecent to Newmoon to Crecent to Full Moon. Answer is A

Post Your Answer

Subject :NSO    Class : Class 6

A matchbox containing an unknown object is placed on a thin sheet of glass in the experimental set-up shown in the figure.

When the bar magnet moves, it is able to drag the match box along. What is most likely to be found in the matchbox?

A Marble
B Toothpick
C Ten-cent coin
D Steel ball bearing


the match box should certainly contain something magnetic as, when the bar magnet is moved then the match box is also dragged along with it .

Ans 1:

Class : Class 6
steel ball bearing is a conducter that is why it is able to drag the box with it.

Ans 2:

Class : Class 7
Isn't a ten-cent coin also magnetic?

Ans 3:

Class : Class 4
Yes steel ball bearing is the best option ....... but i think ten cent coin is also magnetic ... but let it be option A {STEEL BALL BEARING}

Ans 4:

Class : Class 6
Yes it is... yet a steel ball bearing is the best option

Post Your Answer

Subject :NSO    Class : Class 6

The figure shows a ring magnet, X, floating above another ring magnet, Y. This is because


A Magnet X is lighter than magnet Y
B Magnet Y is more powerful than magnet X
C The like poles of both magnets are facing each other and they repel each other
D The unlike poles of both magnets are facing each other and they attract each other.


as the like poles repel each other and thre is no force acting on the magnet the answer should be c

Ans 1:

Class : Class 6
C is correct

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
NO,LIKE POLES DO REPEL EACH OTHER,WHILE THEY DO NOT REPEL UNLIKE POLES ATTRACT EACH OTHER

Ans 4:

Class : Class 6
the ans should be (C) as the like poles repel each other

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6

Ans 2:

Class : Class 3
C:linen

Ans 3:

Class : Class 4
C. LINEN

Ans 4:

Class : Class 4
Thanks a lot!

Ans 5:

Class : Class 5
c;linen

Ans 6:

Class : Class 6

Ans 7:

Class : Class 5
C:linen

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
OPTION C

Ans 2:

Class : Class 5
option C

Post Your Answer

Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9
I don't understand the ANSWER as it also helps in mixing the nutrients uniformly in the soil.

Post Your Answer

Subject :NSO    Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3

Ans 2:

Class : Class 3

Ans 3:

Class : Class 4
white you are rude for sure and it IS b

Ans 4:

Class : Class 4
Kanav , if you know the answer then why have you posted it on the forum ?

Ans 5:

Class : Class 5
option B

Ans 6:

Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer