National Science Olympiad Forum By SOF Olympiad Trainer - Page 8

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
D

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Subject :NSO    Class : Class 8

A wooden table of mass 100 kg is lying on a floor. A man pushes the table with a force of 100 N and another man tends to stop the table with a force of 200 N as shown in the figure. If the friction between the floor and table is 80 N, then


A The table will move towards right with 100 N force
B The table will move towards left with 20 N force
C The table will remain at rest
D The table will move towards right with 20 N force.


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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
The correct answer is option b as the ball is smaller than prism so it will become hidden in the prism .

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
There is no consept of transculsent,transparent and opaque Arha. Thec question says to find the shape of shadow not what is transparent ,tranclusent or opaque. The ball is in the shadow number b inside the woddent prism and wooden prism is bigger hence option cb is correct.

Ans 4:

Class : Class 3
b is correct

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1 : Constructing bunds or small check dams helps in recharging the water table and aquifers.
Statement 2 : Bunds or small check dams trap the water or slow its flow and provide more time for water to percolate.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.


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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 1
It should be a, y and x . And even if they are showing z instead of x , the x is the place for adding non biodegradable but it is showing all the biodegradable wastes . There is something wrong with this question , so I am reporting it .

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Subject :NSO    Class : Class 7

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