National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
The correct answer is 'd'. M/s^2 or metre per second square. That is because the formula for acceleration is change in velocity /time. The SI unit of velocity is m/s (as it is displacement /time) and the SI unit of time is second. So the SI unit of acceleration is m/s/s which can also be written as m/s^2

Ans 2:

Class : Class 8
option D is correct as Average acceleration=Final velocity - Initial velocity/Change in time

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
national dress of korea is hanbok

Ans 2:

Class : Class 4

Ans 3:

Class : Class 4
ans c

Ans 4:

Class : Class 4
The national dress of Korea is "Phiran'

Ans 5:

Class : Class 6
D

Ans 6:

Class : Class 4

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
got it b

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Anil and Brij are hammering a nail into two pieces of wood to join them. Sunita covered her ears, because she said that hammering is noisy. She told them that they are wasting energy because most of the energy they used in hammering is getting lost. Anil disagreed with what Sunita said. Brij explained that some of the energy is converted to sound and heat, but not lost. Anil then added that energy can never be lost or destroyed.
Who among Anil, Brij and Sunita is/are right?

ABrij only
BAnil only
CSunita only
DAnil and Brij only


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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
I agree with them. common cold is the answer. I hope someone corrects this

Ans 2:

Class : Class 4
Read the question properly. It says that which disease CANNOT be spread like the transmission shown here. Here option A,B and D is spread through air. But cholera is spread through water. So option C is the correct option

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6
The answer is common cold as when we get a cold almost all the people who are usually around us catch the cold from us.

Ans 5:

Class : Class 6
The answer is common cold as when we get a cold almost all the people who are usually around us catch the cold from us.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Kavita wanted to toast some bread with the electric toaster. When she switched on the toaster, she received a mild electric shock. However, when her sister Komal tried the same, she did not feel any shock. What could be the possible reason for the difference in their experiences?
(i) Kavita's hands were wet but Komal's hands were dry.
(ii) Kavita was barefoot but Komal was wearing a pair of rubber slippers.
(iii) Kavita's body was a better conductor of electricity than Komal's.

A(i) and (ii) only
B(i) and (iii) only
C(ii) and (iii) only
D(i), (ii) and (iii)


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