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VAIBHAV KALVAKOTA from THE LEXICON INTERNATIONAL SCHOOL WAGHOLI, PUNE
Subject :NSO    Class : Class 8

Ans 1:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
All the properties friction are in use. Hence, the correct one option 'D'.

Ans 2:

VAIBHAV KALVAKOTA from THE LEXICON INTERNATIONAL SCHOOL WAGHOLI, PUNE
Class : Class 8

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VAIBHAV KALVAKOTA from THE LEXICON INTERNATIONAL SCHOOL WAGHOLI, PUNE
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is C.


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shaurya chitriki from delhi public school north, bangalore
Subject :NSO    Class : Class 3

Ans 1:

Mohi from Vibgyor, Bangalore
Class : Class 4
B) 2 and 3

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Dheeraj from Sri Sri Ravishankar Vidya Mandir, Bangalore
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Mass is the amount of matter present in an object whereas weight is the force exerted by the gravity on that object.

Now, the weight of an object, W = g X m, where 'g' is Earth's gravitational constant and 'm' is the mass of the object.

The weight of the object will remain constant as long as the mass of that object is not changing since 'g' is constant. However, the weight of an object can still be changed without changing the mass. This can be explained by the following example: Consider a helicopter with a mass, 'm'.

1. If the helicopter is accelerated towards the earth (during landing) with an acceleration equals to 'A' (positive acceleration) then its weight would become, W = (g + A) X m,  and hence, the weight would increase.

2.  If the helicopter is accelerated away from the earth (during take-off) with an acceleration equals to '- A' (negative acceleration) then its weight would become, W = (g - A) X m,  and hence, the weight would decrease.


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Dheeraj from Sri Sri Ravishankar Vidya Mandir, Bangalore
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Mass is the amount of matter present in an object whereas weight is the force exerted by the gravity on that object.

Now, the weight of an object, W = g X m, where 'g' is Earth's gravitational constant and 'm' is the mass of the object.

The weight of the object will remain constant as long as the mass of that object is not changing since 'g' is constant. However, the weight of an object can still be changed without changing the mass. This can be explained by the following example: Consider a helicopter with a mass, 'm'.

1. If the helicopter is accelerated towards the earth (during landing) with an acceleration equals to 'A' (positive acceleration) then its weight would become, W = (g + A) X m,  and hence, the weight would increase.

2.  If the helicopter is accelerated away from the earth (during take-off) with an acceleration equals to '- A' (negative acceleration) then its weight would become, W = (g - A) X m,  and hence, the weight would decrease.


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ansh rai from delhi public school, Bhilai
Subject :NSO    Class : Class 5

Ans 1:

Poulami Dan from Aditya Academi, Kolkata
Class : Class 5
c

Ans 2:

RISHABH from SUMMER FIELD, GURGAON
Class : Class 5
c

Ans 3:

Shreetej from Pearson public school, Pune
Class : Class 5
Its option (c), mechanical into kinetic

Ans 4:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
mechanical into kinectic

Ans 5:

shreedhar from the shri ram school, delhi
Class : Class 5
mechanical,kinetic (c)

Ans 6:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 4
Mechanical,kinetic

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swagatika from giis, BENGALURU
Subject :NSO    Class : Class 2

Ans 1:

Ipshita from VIBGYOR, Bengaluru
Class : Class 1
The correct answer is d.

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ansh rai from delhi public school, Bhilai
Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A.


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Sai srikar from Mitra academy, Bangalore
Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is C.

Rhinoceros does not have scales on body while snake, lizard and fish have scales as body covering.


Ans 2:

arulmozhi ramesh from Kv, Coimbatore
Class : Class 9

Ans 3:

arulmozhi ramesh from Kv, Coimbatore
Class : Class 9
Snakes can peel their skin of while the others can’t

Ans 4:

Neelesh Dutta from Innocent Hearts School, JALANDHAR
Class : Class 4
The correct answer is CRhinoceros does not have scales on body while snake, lizard and fish have scales as body covering

Ans 5:

Nilarka Pahari from Young Horizons School, Kolkata
Class : Class 4
Do lizards really have scales? I don't think so.

Ans 6:

Neelesh Dutta from Innocent Hearts School, JALANDHAR
Class : Class 4
The correct answer is CRhinoceros does not have scales on body

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Ayush Das from Griffins international school , Midnapur
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
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