National Science Olympiad Forum By SOF Olympiad Trainer - Page 547
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Pradhyumna from J S S Public School, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

vivaan sethi from GD goenka public school, Delhi
Class : Class 4
D

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

Ans 3:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
yes,d

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priyanshi gupta from opg world school , delhi
Subject :NSO    Class : Class 4

Rohan flicked the same coin with equal force on three different surfaces X, Y and Z. The distance travelled by the coin on different surfaces in one stroke is tabulated as shown.


Now, select the correct option regarding it.

A X could be glass and Z could be cardboard.
B Y could be cardboard and Z could be polished plane mirror surface.
C X could be laminated plastic sheet and Y could be sandpaper.
D X could be marble floor and Z could be jute mat.


Ans 1:

Bushra aslam from uttam, Ghaziabad
Class : Class 8
B is correct answer!!!😇

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is B.


Ans 3:

Sanaya Singh from Hiranandani Foundation, Mumbai
Class : Class 2
its b :|

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 8
B is the correct answer

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MRUDUL MAYANK MOHANTY from Loyola school , Bhubaneswar
Subject :NSO    Class : Class 8

Liquids and gaseous fuels have more advantages over solid fuels. Some of the advantages are
(i) Calorific value of liquid and gaseous fuels is higher than the solid fuels.
(ii) Liquids and gaseous fuels have higher ignition temperatures than the solid fuels.
(iii) Liquids and gaseous fuels are easier to store since solid fuels occupy lot of space.
(iv) Liquids and gaseous fuels burn completely, leaving no residue.
The correct advantages are

A (i), (ii) and (iii)
B (i), (iii) and (iv)
C (ii), (iii) and (iv)
D (i), (ii) and (iv).


Ans 1:

Pranav Nayal from Birla Vidya Niketan, New Delhi
Class : Class 9
There is no fuel till now which can't burn without leaving any harmful residue.Thus , option A should be the answer

Ans 2:

tamojit das from techno India Group Public School , Chinsura
Class : Class 8
The information of study materials of this chapter from this site is wrong.Please rectify the data of study material.

Ans 3:

Jitendra Kumar Pareek from Maheshwari public school , Jaipur
Class : Class 8
C

Ans 4:

Kriday from KDAV, Jamnagar
Class : Class 4
in the summary,it is already given that the first option is correct,still it dosent show so in the above question

Ans 5:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
C is the correct option , B is the wrong one

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malavika suresh from Ryan International school , bangalore
Subject :NSO    Class : Class 3

Ans 1:

Daksha Neill from Somerville school, Delhi
Class : Class 7
ignore the prior comment....

Ans 2:

Daksha Neill from Somerville school, Delhi
Class : Class 7
Please explain why D.....

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
C

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

Ans 5:

subhang sarkar from Aditya Academy, Kolkata
Class : Class 3
anwser will be C

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Dishen dharmenra patel from Anand niketan to the satellite , Ahmedabad
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Alok Roy Choudhury from ,
Subject :NSO    Class : Class 8

Ans 1:

Harshit from Army Public School, Lucknow
Class : Class 9
Hi friend the ans is (D) 5. HOPE IT HELPS!!!!

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VIJAYA SREYAS B from NARAYANA OLYMPIAD SCHOOL KUKATPALLY, HYDERABAD
Subject :NSO    Class : Class 6

Ans 1:

JIVESH KUMAR from Cochin refineries school , Kochi
Class : Class 6
universe is made of many galaxies .

Ans 2:

JIVESH KUMAR from Cochin refineries school , Kochi
Class : Class 6
universe is made of many galaxies .

Ans 3:

Sarim raza from St Xavier, Hzaribagh Jharkhand
Class : Class 6
Universe is huge vast open space.. It contains galaxies, solar systems and celestial bodies etc.. No, one can say how universe begin .

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Pradhyumna from J S S Public School, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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Pradhyumna from J S S Public School, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Ayushman Mohapatra from DAV PUBLIC SCHOOL, Bhubaneswar
Subject :NSO    Class : Class 7

Ans 1:

Shriyam from Chinmaya vidyalaya Bokaro, Bokaro
Class : Class 7
Liquid oxygen is impure so ans is B

Ans 2:

Ayushman Mohapatra from DAV PUBLIC SCHOOL, Bhubaneswar
Class : Class 7
B

Ans 3:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
B

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