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Kailash gopal from D.A.V Boys Senior secondary school, Gopalapuram, Chennai
Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement 1 : While drawing a line on a paper, friction force acts on paper in the same direction along which line is drawn on the paper.
Statement 2 : Friction always opposes motion.

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.


I don't understand how statement 1 is true

Ans 1:

Shlok Ghadekar from Tomoae school, Amravati
Class : Class 8
All the options must be incorrect as friction always opposes motion and friction acts in direction opposite of force applied but there is no option saying this

Ans 2:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9
Friction always opposes motion but while drawing a line on a paper, the frictional force acts in the opposite direction in which the tip of the pen acts / the line is drawn. I think all options are incorrect as 'statement 1' is wrong but 'statement 2' is right

Ans 3:

Vidush from Dav pakhowal Ludhiana, Ludhiana
Class : Class 9
No statement 1 is correct where as statement 2 is also correct

Ans 4:

Student from School, City
Class : Class 8
Friction not always opposes motion, it opposes the relative motion but they should've given examples of it. I have read it in a book but there is no examples there, too. :-?

Ans 5:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
YES THERE IS A LOT OF ERROR IN THE OPTIONS

Ans 6:

saumil from Prudence, Delhi
Class : Class 5

Ans 7:

ANUBHA MAHAJAN from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 10
not in all cases friction opposes, this is proved from statement 1 as friction acts backward on the paper and it will act forward on the direction where the pencil is moved

Ans 8:

Aarna Gupta from DPS EAST, BANGALORE , Bengaluru
Class : Class 4
statement 1 is falsewhereas statement 2 should be true

Ans 9:

Amazing Kids from DPS Panipat Refinery, Panipat
Class : Class 8
Yes , I also agree that friction always opposes motion and the following options are incorrect as *Statement 1* is incorrect and *Statement 2* is correct. There is surely some error.

Ans 10:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9

Ans 11:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
Technically, all of the options are incorrect, as Statement 1 is false and Statement 2 is true.

Ans 12:

Sarbari Pal from DPS FARIDABAD, Faridabad
Class : Class 5
all the options are incorrect as statement 1 is false and statement 2 is true.so the answer should look like:(iv)none of these

Ans 13:

Anshuman D from MVM, Hyderabad
Class : Class 9
It should be E first statement is incorrect while second statement is correct.

Ans 14:

saumil from Prudence, Delhi
Class : Class 5
In my opinion statement 2 is true and statement 1 is false as friction always opposes the motion of an object. Also the friction between the pencil and paper should be exerted in the opposite direction.

Ans 15:

Riya Singhani from BVB vidhyashram, jaipur
Class : Class 8
IT 'S ANSWER SHOULD BE D?

Ans 16:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
But friction always opposes motion...then how are they saying that option c is true?

Ans 17:

Rishith Sunil from BVM Global BHS, Chennai
Class : Class 8
You

Ans 18:

Sherlock Holmes from Baker Street, London
Class : Class 8

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Ayaan from apeejay, noida
Subject :NSO    Class : Class 5

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Vimala from Narayana, Bangalore
Subject :NSO    Class : Class 4

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Vimala from Narayana, Bangalore
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Arnav kaul from Chirec, Hyderabad
Subject :NSO    Class : Class 4

Mr Wadhera thought that his garden dried out most quickly when it was hot and windy. He decided to investigate. He watered his dry garden on four different mornings for 10 min at 8 am using the same amount of water.
What should be the weather conditions for four subsequent days to get a fair test?


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


explain

Ans 1:

Ayush Singh from LMB, Kolkata
Class : Class 4

Ans 2:

Anshuman raj from STCS, Karnal
Class : Class 8

Ans 3:

Riddhima Pandey from Chinmaya Vidyalaya, Bokaro Steel City
Class : Class 3
I think it is B?.?.

Ans 4:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 4

Ans 5:

Ayush Singh from LMB, Kolkata
Class : Class 4

Ans 6:

Akshaya S from NPS ITPL, Bangalore
Class : Class 6

Ans 7:

Soham from Vibgyor , Pune
Class : Class 6

Ans 8:

Sandipta Bhattacharjee from Sri Ram Narayan Singh Memorial High School, Kolkata
Class : Class 5
Please somebody explain.

Ans 9:

Diya s praveen from Paramekkavu vidya mandir, Thrissur
Class : Class 4

Ans 10:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 7
please somebody explain......They have not given the solution.............

Ans 11:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6
The meaning of the symbols is not clear.

Ans 12:

Shreshta from Presidium, Ghaziabad
Class : Class 5
I agree with Harish Divakar and Ridhima . The ans is b

Ans 13:

Arnav kaul from Chirec, Hyderabad
Class : Class 5
dude i asked you to explain .Not give the answers because you have done it before.[i am talking to you only, Shaurya uniyal]

Ans 14:

Hamzah Inamdar from SHARDA ENGLISH SCHOOL KAIJ DIST BEED, KAIJ
Class : Class 4
Can somebody explain the answer to the question?

Ans 15:

Shailaja Divakar from Chennai public school global school, London
Class : Class 6
So, for an experiment you need multiple values for comparison. This question states that the experiment is to be carried out for four days, meaning that you need to compare four different scenarios. The first one is obviously hot and windy. The four scenarios- hot, windy, calm and cloudy must be paired with each other forming these- hot and windy, hot and calm, windy and cloudy, cloudy and calm- option B

Ans 16:

Shailaja Divakar from Chennai public school global school, London
Class : Class 6
I don't understand the guestion. Can somebody explain.

Ans 17:

Ayush Singh from LMB, Kolkata
Class : Class 4
they have not given the solution........ please explain

Ans 18:

vineet8026@gmail.com from dps, Doha
Class : Class 1
Please explain. .....

Ans 19:

Shaurya uniyal from NDS school rishikesh, Rishikesh
Class : Class 6
C

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Arnav kaul from Chirec, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Ans 2:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 6

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Ans 4:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6
Hey ! I wrote B only ! They changed my answer !

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Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

A ship is made of iron but still it floats in water. This is because of its shape. A ship is hollow in the middle. When it is in water, the entire volume of the ship, including the hollow portion displaces water to make space for itself. The volume of water displaced is much more than the volume of iron in the ship. Therefore, the ship floats in water.
In the above passage, the floatation of ship is being described with ______ principle.

A Newton's
B Archimedes'
C G auss'
D Both A and B

Ans 1:

DIYA NOBY from VISWAJYOTHI CMI PUBLIC SCHOOL, ANGAMALY
Class : Class 8
B is the answer

Ans 2:

DIYA NOBY from VISWAJYOTHI CMI PUBLIC SCHOOL, ANGAMALY
Class : Class 8
B is the answer

Ans 3:

Kevin Frederick S from Stanes School - ICSE, Coimbatore
Class : Class 5
What is the meaning of archimedes[']

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A Kumar from SNSVM, East Singhbhum
Subject :NSO    Class : Class 7

Ans 1:

A Kumar from SNSVM, East Singhbhum
Class : Class 8
i

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from bhavans rajaji vidyashram, chennai
Subject :NSO    Class : Class 3

Ans 1:

vineet8026@gmail.com from dps, Doha
Class : Class 1
C

Ans 2:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 7
The correct answer is C.

Ans 3:

Suchir Dasgupta from Delhi Public School Newtown, Kolkata
Class : Class 4
i Do Not KNOW North South East West

Ans 4:

Smita Roy from Nava Nalanda Santiniketan Shakha, Bolpur
Class : Class 3
D

Ans 5:

prithika from Indian school sohar, sohar
Class : Class 5
ANS:C As the sunset in the west the shadow will fall in the east side. so the park would have most shade is Park R

Ans 6:

Aryan Goyal from DPS , Dwarka, New Delhi
Class : Class 3
c c c c c c c c c c c c c c c c c c c c c

Ans 7:

SHAUNAK from St Xaviers School, HAZARIBAG
Class : Class 3
C is the right answer

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A Kumar from SNSVM, East Singhbhum
Subject :NSO    Class : Class 7

Ans 1:

himanshu from rps school, mahendragarh
Class : Class 7
d

Ans 2:

Medha Bhutani from Christ Academy, Bengaluru
Class : Class 9
OPTION B IS RIGHT

Ans 3:

Kamal Manchenella from Delhi Public School, Hyderabad
Class : Class 7
B

Ans 4:

A Kumar from SNSVM, East Singhbhum
Class : Class 8
OPTION D) IS CORRECT AS WATER IS INEXHAUSTIBLE,FOREST IS EXHAUSTIBLE,METAL IS RECYCLABLE. AND FOSSIL FUEL CANNOT BE RECYCLED AND IT TAKES MILLIONS OF YEARS TO FORM

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