National Science Olympiad Forum By SOF Olympiad Trainer - Page 635
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Siddharth Mahesh from mdav public school , Hyderabad
Subject :NSO    Class : Class 8

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PRAJAKTA SUHAS MARATHE from ST. HELENA'S SCHOOL, PUNE
Subject :NSO    Class : Class 4

Ans 1:

Krisha Ganeriwal from Podar International school, Mysore
Class : Class 2
The correct answer is a

Ans 2:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Answer should be A car with least no.of people will go faster right

Ans 3:

Ayan Sharma from DPS Whitefield, Bangalore
Class : Class 6
This is wrong logic. All the cars will go down with same speed. The acceleration is same for all objects. Only when there is significant air resistance will the speeds be different. E.g., bullet vs. a feather. Look for Galileo's experiment. In this question, the air resistance will not be any different across the 4 choices.

Ans 4:

Adithya raj singh from chinmaya international residential school, tirupur
Class : Class 8
the answer a

Ans 5:

Krisha Ganeriwal from Podar International school, Mysore
Class : Class 2
Aaaa

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Pls explain

Ans 7:

Harishchandra C from narayana e techno school, chennai
Class : Class 5
OK YOU ARE TELLING THAT AIR BUT E.G., STEEL BALL VS SPONGE BALL IN SLOPE SEE BELLIONS EXPERIMENTS, HE WILL PROVE THAT ON 76TH EXPERIMENT

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 9
ASHMI , you are confusing me and others also I think . Firstly you said - please explain then you said the answer is A then in the experiment in first line you said the answer is D but in the last line you wrote the answer is A !!!!! C an you explain what is the correct answer in your eyes A or D ?

Ans 9:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Answer is D as gravitational force acts quicker on the heavier object.You can try an experiment related to this answer.Throw a plastic bottle cap and metal bottle cap OR a sheet of paper and a glue bottle OR any two such things so that one is heavy and the other one is light. Then throw them from the same height and at the same time. Then you'll get the answer i.e. the heavier thing fell before the lighter thing. I tried this experiment after giving my first opinion (OPTION A-you can see it) and it gave me good results.

Ans 10:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Well,Snow White ,from Paris, I think ASHMI is saying that the answer is 'D'.

Ans 11:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
c

Ans 12:

Manan thorat from Podar powai, Mumbai
Class : Class 4
THE ANSWER IS A!

Ans 13:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8

Ans 14:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
it is D because they are going down a slope the more the weight the faster the car goes down right?

Ans 15:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
d

Ans 16:

Nishchita from Gems Modern Academy , Dubai
Class : Class 8
Answer is D

Ans 17:

Indrasish Chakraborty from Delhi Public School JOKA South Kolkata, Kolkata
Class : Class 5

Ans 18:

Samika Ranjan from The Shri Ram School Aravali, Gurgaon
Class : Class 7
d because the car will go faster with more wieght

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Augustine from , coimbatore
Subject :NSO    Class : Class 4

Ans 1:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
Yes, I also think it is Option D) Large Intestine

Ans 2:

Jui from podar international School, PUNE
Class : Class 6
large intestine

Ans 3:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3
It should be D, large intestine

Ans 4:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3

Ans 5:

Yaduveer Rathore from MSMS School, Jaipur
Class : Class 5
4 large interstine

Ans 6:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
the answer is D large intestine

Ans 7:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
ANSWER IS D BECAUSE ABSORPTION OF WATER FROM THE FOOD IS DONE BY LARGE INTESTINE

Ans 8:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7
4The answer will be D It is the correct answer

Ans 9:

Shiven Dinkar from DPS Noida, Delhi
Class : Class 4

Ans 10:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7

Ans 11:

Bk Tiwari from S.D.A, Surat
Class : Class 9
D is the answer

Ans 12:

none from na, na
Class : Class 5

Ans 13:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Harishchandra, see, clearly, the pic in option 'C' is small intestine.The pic in option 'D' is of large intestine.The answer is option'D'

Ans 14:

Aviral Shukla from Apeejay School Sheikh Sarai, New Delhi
Class : Class 10
It is D large intestine

Ans 15:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Harishchandra, in option C the figure is of ' Small Intestine ' and in option D the figure is of ' Large Intestine' . So the answer is D

Ans 16:

Harishchandra C from narayana e techno school, chennai
Class : Class 5
C AND D ALSO WILL ABSORB WATER SO C AND D SEE CORRECT IT SOF

Ans 17:

Shreyansh Saha from Garden High School, Kolkata
Class : Class 6

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Puneet Arora from ,
Subject :NSO    Class : Class 6

Ans 1:

Yojit kashyap from APS Ahmedabad, Ahmedabad
Class : Class 6
It is reversible and chemical because salt has sodium and chlorine and water has hydrogen and oxygen so different item formed It is reversible because you can separate them by evaporating the water

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Gaurab Das from DPS School, Bengaluru
Subject :NSO    Class : Class 9

Ans 1:

sathvik from nsm public school, vijaywada
Class : Class 9
all the options seem inapropriate for this

Ans 2:

harnoor from cambridge international school, nawanshahr
Class : Class 9
answer given is wrong

Ans 3:

Aryan Srivastava from Jayshree Periwal High School, Jaipur
Class : Class 9
this is wrong

Ans 4:

Ridhi Goyal from DAV Public School, Ludhiana
Class : Class 9

Ans 5:

Rishit Saini from R. A. N. Public School , Rudrapur
Class : Class 9
the question is wrong.

Ans 6:

from d.g.v. sr. sec. school, rohtak
Class : Class 9
correct option is not given

Ans 7:

from ,
Class : Class 10
Gravitational force decreases when altitude increases as gravity is inversely proportional to square of distance that separates earth and the body

Ans 8:

aryan kushwaha from delhi public school amballa, amballa
Class : Class 9
GRAVITATIONAL CAN NOT INCREASE WITH ALTITUDE

Ans 9:

Aditi Agrawal from Sunbeam School Bhagwanpur, VARANASI
Class : Class 9
How can gravitational force increase with altitude?

Ans 10:

Aardev from Choithram School Manik Bagh, Indore
Class : Class 9
ALL THE OPTIONS ARE INCORRECT

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Yashvi Agrawal from DPS Indirapuram, Ghaziabad
Subject :NSO    Class : Class 6

Ans 1:

Puneet Arora from ,
Class : Class 5
Option c

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Roshan Choudhary from Aps tezpur , Tezpur
Subject :NSO    Class : Class 3

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Augustine from , coimbatore
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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meenakshi jain from mvn, faridabad
Subject :NSO    Class : Class 4

Ans 1:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
I dont know which one is correct C or B

Ans 2:

Parikshit G from DPS Panvel, NAVI MUMBAI
Class : Class 8

Ans 3:

Risha Jakhotiya from Sanskriti School , Pune
Class : Class 3
The correct answer is B

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The materials used to make given objects are wool , leather , cotton and silk . Out of these , only leather is hidden..... Hence , option C is correct .

Ans 5: (Master Answer)

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

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Vishad Jain from Borivali, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

INDRANI GHOSH ROY from AMRITA VIDYALAYAM, Durgapur
Class : Class 5
Answer will be C, not D

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