National Science Olympiad Forum By SOF Olympiad Trainer - Page 265
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Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore
Class : Class 6
b

Ans 2:

Arsh Gupta from Cambridge International School, Jalandhar
Class : Class 4
b is the correct answer

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Arav Jain from Global edge school, Hyderabad
Subject :NSO    Class : Class 7

Ans 1:

Mrittika Roy from DPS Ruby Park, Kolkata
Class : Class 3

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ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Subject :NSO    Class : Class 8

Ans 1:

Siya Aneja from Tagore International , SOUTH DELHI
Class : Class 8
The volume of the stone is equal to the volume of the water increased in the measuring cylinder. The volume of the stone is calculated from the formula Volume =Mass/Density. In this case, the Mass = 12 g and Density = 3g cm^3 Volume = 12/3 = 4 cm^3 The actual volume of liquid in the measuring cylinder is 20cm^3 . So, the increase in volume will show a new reading of 20cm3+4cm3=24cm^3 hence...answer is (B)

Ans 2:

Mohseen Raja from Dev Samaj Modern School, New Delhi
Class : Class 10
B

Ans 3:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8
How the answer is (b)???

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ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Subject :NSO    Class : Class 8

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Samitha Kumar from Boaz Public School , Chennai
Subject :NSO    Class : Class 6

Which of the following statements are incorrect?
(i) A bag placed below the seat of a moving bus is in motion with respect to the floor of the bus.
(ii) While measuring length of an object using a metre scale, use the zero-mark even if the ends are worn out.
(iii) Blinking of eyes is an example of periodic motion.
(iv) If a body as a whole moves around in a circular path, the motion is known as revolution.

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


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Dhairya Agarwal from St. Francis School, Ghaziabad
Subject :NSO    Class : Class 6

Nisha and Neha were playing together on a street where they accidentally collided with each other and fell down. After that, Neha started feeling pain in her elbow and could not bent it easily. Nisha also developed discomfort in one of her wrists and had difficulty in writing. They visited doctor who told them that their joints were injured. Identify their injured joints and select the correct option regarding them.

Nisha Neha
A Injured joint is the type of joint also present between metacarpal and carpal of thumb. Injured joint is the type of joint also present between skull and first vertebra of backbone.
B Injured joint is the type of joint also present between upper arm and forearm. Injured joint is the most freely movable joint of body.
C Injured joint is the type of joint also present between tarsal bones. Injured joint allows movement primarily in one plane.
D None of these


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Dhairya Agarwal from St. Francis School, Ghaziabad
Subject :NSO    Class : Class 6

Ans 1:

Aarav Srivastav from DWPS , Noida Extension
Class : Class 7
answer is c

Ans 2:

Samarth Tripathi from Ryan International School, Gurugram
Class : Class 6
who says that printer produces sound energy. laser printers dont make any sort of sound. and if you dont agree than see this, oven produces sound and not only that, but, almost all machines produce sound.

Ans 3:

Soundarya pandey from SVM ,Vasai east, Vasai
Class : Class 6
The answer is C

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Pratham Dave from GNS, Bangalore
Subject :NSO    Class : Class 5

Ans 1:

Pratham Dave from GNS, Bangalore
Class : Class 7
D is the answer to this question

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

Venus is the hottest planet. Although Mercury is situated closer to Sun than Venus but Venus’s carbon dioxide rich atmosphere causes its days to be warmer than those of Mercury.


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Prithwanko Ghosh from Kendriya Vidyalaya IIT Kanpur, Kanpur
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A

The animal shown in the image is a sheep and it's fleece is used for making woolen socks and gloves.


Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A

The animal shown in the image is a sheep and it's fleece is used for making woolen socks and gloves.


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Kanishk Mukherjee from BDM International, Kolkata
Subject :NSO    Class : Class 6

Ans 1:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 9
the current starts flowing from positive end to negative end in a closed circuit and in this case , current first gets divided and passes through Q and R and then the current again gets add up and passes through p. so due to the greater flow of current through P it is more brighter.

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

When the key K is closed, an electric current starts flowing in the circuit . The current which passes through bulb P gets divided  in bulbs Q and R. For the identical bulbs , the brightness will depend upon the current flowing through the bulbs,So P will glow brighter than Q and R .


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