National Science Olympiad Forum By SOF Olympiad Trainer - Page 561

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Answer should be C.When mass of an object increases, weight also increases since g (9.8 m/ses-sq) is constant and Weight = Mass x g.Hence statement (iii) is correct and hence choice C is the correct choice.Please change the answer.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8
as mass increases weigt also increses so option c

Ans 4:

Class : Class 8

Ans 5:

Class : Class 7
D

Ans 6:

Class : Class 6

Ans 7:

Class : Class 9
The answer shows d but the solution says that its c. What is this? P,ease rectify SOF.

Ans 8:

Class : Class 10
Mass increase so weight increase

Ans 9:

Class : Class 6
i would be wrong because if you have 2 metal ball of same mass then weight would be same right

Ans 10:

Class : Class 10
Answer is C. solutions says so

Ans 11:

Class : Class 8

Ans 12:

Class : Class 7

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
Explain

Ans 2:

Class : Class 7

Ans 3:

Class : Class 9
C

Ans 4:

Class : Class 9
explain

Ans 5:

Class : Class 6
C is fax which is type of visual communication

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9
C

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
c

Ans 2:

Class : Class 7

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7

Ans 5:

Class : Class 5

Ans 6:

Class : Class 5

Ans 7:

Class : Class 7
I am bengali , hindi , english and malayalam . This looks pity to me !!!!!!!!!!!!!!!!!!!

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
DIt reflects the red colour and absorbs rest of the colours.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
d

Ans 2:

Class : Class 9
You are wrong.The correct answer should be D.

Ans 3:

Class : Class 6
You are right. It should be D.

Ans 4:

Class : Class 9
the correct is D.

Ans 5:

Class : Class 8

Ans 6:

Class : Class 8
d is the answer

Ans 7:

Class : Class 3
I think you are right it should be D.

Ans 8:

Class : Class 3
Correct answer is D

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
The correct answer is A because Bituminous is not a ore, typhoid is a water-borne disease and rest are vector-borne disease and nutcracker is an example of 2nd class lever whereas all the other are 1st class lever.

Ans 2:

Class : Class 6
Ans is A because bituminous is not an ore, typhoid is not a vector-borne disease and nutcracker is not a class 1 lever.

Ans 3:

Class : Class 5
I agree Areen

Ans 4:

Class : Class 5

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 9
the answer is b . this is because sun tan is temporary.

Ans 2:

Class : Class 9
answer is b

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 8
IT SHOU BE D!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

Class : Class 8
Correct answer is A

Ans 3:

Class : Class 9
nylon burns with a smell of plastic, not burning hair. WTF?

Ans 4:

Class : Class 8
It should be D. Because nylon would never once burn with smell of paper in it's entire career. SOF, you gotta chnage the answer man.

Ans 5:

Class : Class 9
Supposed to be D

Ans 6:

Class : Class 9
IT must be D! Nylon does not burn with the smell of burning hair as it is purely synthetic and has no relation to the protein based hair.

Ans 7:

Class : Class 8
Nylon should neither have a smell of burning hair nor the smell of burning paper. Nylon has a celery or plastic-like cell. Hence the correct answer is D. But on the other hand when acrylic burns, it shrinks and converts into black beads. On this contrast, the correct answer will be B with respect to acrylic and D with respect to Nylon. There is definitely an error in the options of the answers!

Ans 8:

Class : Class 9
wrong answerthe answer should be B

Ans 9:

Class : Class 9
yes the answer is D. nylon burns with a smell of celery because its a synthetic fibre.

Ans 10:

Class : Class 8
(D)

Ans 11:

Class : Class 9
How can Nylon burn with the smell of burning hair??

Ans 12:

Class : Class 8
How is this possible Nylon burns with smell of hair???

Ans 13:

Class : Class 8
Nylon does not have the smell of burning hair. So the answer should be d.

Ans 14:

Class : Class 10

Ans 15:

Class : Class 8
wool burns with smell of burning hair

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