National Science Olympiad Forum By SOF Olympiad Trainer - Page 44
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ANTARIKSH GOGOI from CARMEL SCHOOL, JORHAT
Subject :NSO    Class : Class 8

Ans 1:

s.sanjay from aristo public school, cuddalore
Class : Class 8
Hi

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Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Subject :NSO    Class : Class 8

Ans 1:

Tejas Agarwal from Prudence School , New Delhi
Class : Class 9
I think friction is taken as one and normal force tooif we are in apparent contact with one surface then friction is onebut the actual contact is at many places so we can't say it as many frictional forces.

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Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Subject :NSO    Class : Class 8

There are three tins filled with water and have holes of the same size as shown in figure. Which of the following options correctly identifies true (T) and false (F) ones?

(i) The farthest spout is from the middle hole in case (a).
(ii) The stream of water falls out the farthest through the upper hole in case (b).
(iii) The farthest spout is from the lowest hole in case (c).

(i) (ii) (iii)
A T T T
B F T T
C F F T
D F F F


option c is correct

Ans 1:

Aayushman mohapatra from Sental The Global School, Hyderabad
Class : Class 8
Yeah the answer is wrong it should be C

Ans 2:

SNS from Manav Rachna International School , Gurugram
Class : Class 8
the answer given is wrong, just checked from the book answer key

Ans 3:

NIVED PRAKASH NAIR from SARVODAYA, THIRUVANANTHAPURAM
Class : Class 8
The ans is wrong

Ans 4:

Tejas Agarwal from Prudence School , New Delhi
Class : Class 9
yes why?

Ans 5:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
bro why?? i dont undestand..pls help

Ans 6:

Aayushman mohapatra from Sental The Global School, Hyderabad
Class : Class 8
It should be C.Please fix the technical errors.

Ans 7:

viyaanmedalmaster from THE KHAITAN SCHOOL, greater noida west
Class : Class 8

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Mahi Chandra from ICON School of Excellence, Bengaluru
Subject :NSO    Class : Class 3

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Saranya Sachin Auti from Delhi Public School, NAVI MUMBAI
Subject :NSO    Class : Class 3

Ans 1:

Sushant from NOIDA, NOIDA
Class : Class 3

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Sarth Sagar from Millennium National School , Pune
Subject :NSO    Class : Class 10

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Reagan Dmello from New Horizon scholars school, Thane West
Subject :NSO    Class : Class 4

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Advika Behera from Sardar Patel Vidyalaya, New Delhi , New Delhi
Subject :NSO    Class : Class 4

Match column I with column II and select the correct option from the codes given below.

Column I Column II
a. Inclined plane (i) Bottle opener
b. Wheel and axle (ii) Ramp
c. Lever (iii) Jar lid
d. Screw (iv) Screwdriver
e. Wedge (v) Fork

a b c d e
A (iii) (ii) (iv) (v) (i)
B (i) (iii) (v) (iv) (ii)
C (iv) (v) (iii) (ii) (i)
D (ii) (iv) (i) (iii) (v)


the correct answer is d

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teesta from DPSW, Bangalore
Subject :NSO    Class : Class 10

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Shreyam Tripathy from Ann Mary School, Dehradun
Subject :NSO    Class : Class 9

A number arrangement machine when given an input consisting of numbers arranges the numbers in a particular way until all the numbers are arranged in a specific order.
Read the following steps of rearrangements.
Input : 60 54 18 48 12 90
Step I : 60 90 54 12 18 48
Step II : 60 48 90 18 54 12
Step III : 60 12 48 54 90 18
Step IV : 60 18 12 90 48 54
Step V : 60 54 18 48 12 90
The step V is the final step.
Identify the rule in the given steps of rearrangement and hence answer the question given below.
What will be the Step III for the given input?
Input : 5 12 18 40 77 82

A 82 77 40 18 12 5
B 5 12 18 40 77 82
C 5 82 12 77 18 40
D 5 40 77 82 12 18


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