National Science Olympiad Forum By SOF Olympiad Trainer
  1. Home
  2. Forum

User Forum

Ask Your Question
Ayush Kumar from Maria Assupta Sr. Sec. Convent School, KASHIPUR
Subject :NSO    Class : Class 5

Ans 1:

MANAS.KUMAR from Dehli Public School Noida, NOIDA
Class : Class 5
can anyone tell me

Ans 2:

VAIBHAVH RAMESH from NARAYANA ETECHNO WHITEFIELD, BANGALORE
Class : Class 5

Ans 3:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
a

Ans 4:

Arnav kaul from Chirec, Hyderabad
Class : Class 5

Ans 5:

Akshara from NPS, Bengaluru
Class : Class 5

Ans 6:

Sunita from Dps, Greater Noida
Class : Class 5
haha

Ans 7:

Sunita from Dps, Greater Noida
Class : Class 5
HOME Test ReviewForce Work and Energy0 : 5 : 9 / 0 : 40Time Taken20 / 20Marks ObtainedAll Correct Wrong Unattemted1.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 12.Your Answer D Correct Answer D View this question on ForumReport Error Marks: 13.Your Answer C Correct Answer C View this question on ForumSolutionReport Error Marks: 14.Your Answer D Correct Answer D View this question on ForumSolutionReport Error Marks: 15.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 16.Your Answer D Correct Answer D View this question on ForumSolutionReport Error Marks: 17.Your Answer C Correct Answer C View this question on ForumSolutionReport Error Marks: 18.Your Answer C Correct Answer C View this question on ForumReport Error Marks: 19.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 110.Your Answer C Correct Answer C View this question on ForumSolutionReport Error Marks: 111.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 112.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 113.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 114.Your Answer B Correct Answer B View this question on ForumReport Error Marks: 115.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 116.Your Answer B Correct Answer B View this question on ForumSolutionReport Error Marks: 117.Your Answer D Correct Answer D View this question on ForumSolutionReport Error Marks: 118.Your Answer D Correct Answer D View this question on ForumReport Error Marks: 119.Your Answer A Correct Answer A View this question on ForumReport Error Marks: 120.Your Answer A Correct Answer A View this question on ForumSolutionReport Error Marks: 1

Ans 8:

Vedanth S from Kumarans Childrens Academy, Bangalore
Class : Class 5
correct answer:D

Ans 9:

Adyanshu Panigrahi from Montfort School, Dhenkanal
Class : Class 5

Ans 10:

Archit srivastava from Rbk school, Mumbai
Class : Class 4

Post Your Answer

arijit paul from New Town School, Kolkata
Subject :NSO    Class : Class 7

Ans 1:

Neevedita Singh from Auxilium Convent School Dum Dum, Kolkata
Class : Class 7
A

Ans 2:

Khwahish Sharma from Oakfield Public School , Jaipur
Class : Class 7
The answer should be C because during the last 10 seconds [ 40 second ] the distance is 10 meter not 5 meter.

Post Your Answer

Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 3

Ans 1:

Neelesh Dutta from Innocent Hearts School, JALANDHAR
Class : Class 5

Ans 2:

Neelesh Dutta from Innocent Hearts School, JALANDHAR
Class : Class 5
They are right it should be [B] .

Ans 3:

Pasith Meeran from Mount Litera Zee School, Bengaluru
Class : Class 3
WHAT!!!!!! IT SHOULD BE (A).

Ans 4:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 3
what????

Ans 5:

Aditi Mahanti from DPS North Kolkata, Kolkata
Class : Class 3
It should be a tailorbird

Ans 6:

Sreenath from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 4
Tailor bird that is A

Post Your Answer

Shreesh Panigrahi from St. Xavier's High School, Kedargouri Bhubaneswar
Subject :NSO    Class : Class 8

Ans 1:

Subash kandoth from New horizon public school , Navi Mumbai
Class : Class 10
TBH2VI http://www.LnAJ7K8QSpfMO2wQ8gO.com

Post Your Answer

Ankit Nandy from Lawrence High School, Bangalore
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Alpha, Beta, Gamma in ascending order.

Alpha particles leaves the nucleus of an unstable atom at a speed of 16,000 kilometres per second, around a tenth the speed of light.
Beta particles travel at a speed of 270,000 kilometres per second, around 98% of speed of light.
Gamma particles travel at the speed of light.

Post Your Answer

Agnimitra Gupta from south point school, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

sundus from salwan public school, Gurgaon
Class : Class 4
All options are WRONG

Ans 2:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
I have by mistake typed it Co sorry it will be C. I have a solution we can report error.

Ans 3:

Mahati p from cornerstone the public school, chandanagar, hyderabad
Class : Class 4

Ans 4:

Ishit Rai from EUROSCHOOL THANE, THANE WEST
Class : Class 4

Ans 5:

Ainesh das from Chrysalis, Bangalore
Class : Class 4
all are wrong

Ans 6:

Arpit Pratap Singh from D P S bangalore north, Bengaluru
Class : Class 5
you are right vaibhav all are wrong

Ans 7:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 5
None of the options are correct according to my doubt.

Ans 8:

Ainesh das from Chrysalis, Bangalore
Class : Class 4
ansAll answers oposite

Ans 9:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 4
question, answer and solution is wrongall the options are showing the difference on heating

Ans 10:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
Qtn. agreed but main point is which is column X and which is column is Y??????

Ans 11:

Aarush Thakur from DPS, Gurgaon
Class : Class 6
option d maybe

Ans 12:

shreyash rawat from podar international school, pune
Class : Class 4
4wrong question

Ans 13:

Deepak Vijayaragavan from Greenwood High, Bengaluru
Class : Class 4
Please change it. It is correct in NSO book like Harish Divakar said

Ans 14:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 4
PLS. CORRECT

Ans 15:

monisha garg from carmel convent school sector 9 chandigarh, panchkula
Class : Class 4
all options are wrong

Ans 16:

Prerona Chatterjee from Delhi Public School, Kolkata
Class : Class 4
The question is wrong... and so the answer is also misleading.

Ans 17:

Prashanth from Gems Modern Academy, Dubai
Class : Class 5
SHOULD HAVE BEEN SPECIFIC WITH RESPECT TO X AND Y MARKING

Ans 18:

Harish Divakar from Chennai public school global school, Chennai
Class : Class 4
All the answer is wrong. In the NSO book, it is right.

Ans 19:

Kaju from bbps, New Delhi
Class : Class 5
if an object is cooled down the molecule structure changes from loosely packed to tightly packed. therefore none of the options is correct

Ans 20:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 4
ALL ARE WRONG

Ans 21:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 4
I also think that.Questions ,options, colums and answers didn't mentioned.

Ans 22:

Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Class : Class 4
how can liquid turn into gas by freezing ? Option A does the same thing so the correct option should be D

Ans 23:

from , Bengaluru
Class : Class 5
The options given are wrong / confusing. Please clarify.

Ans 24:

Harish Divakar from Chennai public school global school, Chennai
Class : Class 4

Ans 25:

Vidhya M. from Vibgyor High Bannerghatta, Bangalore
Class : Class 4
When a substance is cooled the molecules come closer. But there is no picture showing that the molecules are coming closer there is no correct answer. Also option B and C are the same. Can you please change it?

Ans 26:

BISWADITYA TRIPATHY from Delhi public school Bangalore east, Bangalore
Class : Class 4
Please explain the answer. I also support Baibhab that the choices given are wrong.

Ans 27:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
B and Co are same. Intermolecular space is not decreasing in any of the situations. It is wrong.

Ans 28:

ArhamAnay Jain 4G from MDPS, Faridabad
Class : Class 4
all options are wrong

Ans 29:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 4
b and c are all the same

Ans 30:

vaibhav rai from pearson school jaipur, JAIPUR
Class : Class 3
I think all options are wrong

Ans 31:

Inakshi Dev from Hemsheela, Kolkatta, Kolkatta
Class : Class 4
Are B, C, D correct.

Ans 32:

Aparna praveen from Rajagiri, Ernakulam
Class : Class 4
is there a correction in the options given?if not please clarify with explanation

Ans 33:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
Option b, c are the same. Pls give me a proper explanation as to why one option is correct

Ans 34:

Samika Ranjan from The Shri Ram School Aravali, Gurgaon
Class : Class 7
please change the question.

Ans 35:

Prashanth from Gems Modern Academy, Dubai
Class : Class 5
THE ANSWER IS WRONG.

Ans 36:

Deepayan Das from South Point School, Kolkata
Class : Class 4
There is no specific details about which one is X or Y.So by common sense I think that it would be D.But B

Ans 37:

NEEV SINGH from VISHWA BHARATI PUBLIC SCHOOL, Noida
Class : Class 4
all options are wrong

Ans 38:

Yaduveer Rathore from MSMS School, Jaipur
Class : Class 4
wrong wrong wrong wrong wrong wrong

Ans 39:

Chiranjib kar from MOUNT LITERA ZEE SCHOOL, JAJPUR
Class : Class 5
Options are wrong. Molecular distance should be less.

Ans 40:

Pratibha from Vaels billabong international, Chennai
Class : Class 5
Can somebody pls answer this question with explanation

Ans 41:

Saumya Asmriti from CITY MONTESSORY SCHOOL INTER COLLEGE LUCKNOW UTTAR PRADESH, Lucknow
Class : Class 4
All options are wrong.

Ans 42:

Mahati p from cornerstone the public school, chandanagar, hyderabad
Class : Class 4
All the options are totally wrong, please change them

Ans 43:

Baibhab Tripathy from SAI INTERNATIONAL SCHOOL, BHUBANESWAR
Class : Class 6
I think al options are wrong . Please tell the correct answer

Ans 44:

Ishit Rai from EUROSCHOOL THANE, THANE WEST
Class : Class 4
Please please please please please please please please change the question

Ans 45:

Arthaa Auti from Vidya valley school, pune
Class : Class 4
All are wrong. At least number of atoms should be same. So answer should be D

Ans 46:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
all Q are wrong

Ans 47:

kadambari chaudhary from chinmaya vidayala, delhi
Class : Class 4
Options are wrong. Molecular distance should be less. first fix which column is X and Y.

Ans 48:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4

Post Your Answer

Agnimitra Gupta from south point school, Kolkata
Subject :NSO    Class : Class 4

Achin conducted an experiment to find out the amount of light that can pass through three different materials, a clear plastic sheet, a cardboard and a piece of tracing paper. All the materials have the same thickness. He shone a torch on the three materials and used a light sensor to measure how much light has passed through each of them. Which of the following graphs most likely shows the amount of light that has passed through each material?

A
B
C
D


Ans 1:

Saani from Cambridge, Mangalore
Class : Class 5
A is correct

Ans 2:

Baibhab Tripathy from SAI INTERNATIONAL SCHOOL, BHUBANESWAR
Class : Class 6

Ans 3:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
AAAAAAAAA IS RIGHT

Ans 4:

Baibhab Tripathy from SAI INTERNATIONAL SCHOOL, BHUBANESWAR
Class : Class 6
I think the ‘A’ is the right answer

Post Your Answer

ANANYA.SINGH from dps, noida
Subject :NSO    Class : Class 2

Post Your Answer

saesha from sulochanadevi singhania school, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

R K Madhav from Kendriya Vidhyalaya Kottayam, Kottayam
Class : Class 6
4 km

Ans 2:

SRIJITA MURMU from DPS Joka, Kolkata
Class : Class 5
4km

Ans 3:

naman from PSBBM, Chennai
Class : Class 1
answer will be d 4 kilo meters

Ans 4:

Reeth Bhasin from Jamnabai Narsee International School, Mumbai
Class : Class 5

Post Your Answer

Ved Parixit Brahmbhatt from Hillwoods School, Gandhinagar
Subject :NSO    Class : Class 9

Ans 1:

Aarthi from Prince matriculation higher secondary school , Chennai
Class : Class 9
SI unit of impluse is Newton

Ans 2:

Shrestha Dutta from Julien Day School, KALYANI
Class : Class 10
force=change in momentum/time interval(del t) impulse=change in momentum=force * time interval(del t) SI unit of impulse is newton second or Ns. CGS unit of impulse is dyne second .

Post Your Answer