National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
d

Ans 2:

Class : Class 5
c

Ans 3:

Class : Class 7
d because the car will go faster with more wieght

Ans 4:

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 5:

Class : Class 5
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.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 3
It should be D, large intestine

Ans 2:

Class : Class 4
4 large interstine

Ans 3:

Class : Class 5
C AND D ALSO WILL ABSORB WATER SO C AND D SEE CORRECT IT SOF

Ans 4:

Class : Class 5

Ans 5:

Class : Class 5
large intestine

Ans 6:

Class : Class 4
It is D large intestine

Ans 7:

Class : Class 3

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Subject :NSO    Class : Class 6

Ans 1:

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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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
this is wrong

Ans 2:

Class : Class 9
How can gravitational force increase with altitude?

Ans 3:

Class : Class 9
answer given is wrong

Ans 4:

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 5:

Class : Class 9
all the options seem inapropriate for this

Ans 6:

Class : Class 9

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5
Option c

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
C

Ans 2:

Class : Class 3
C

Ans 3:

Class : Class 5
C

Ans 4:

Class : Class 5
C

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Answer will be C, not D

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Subject :NSO    Class : Class 6

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