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saesha from sulochanadevi singhania school, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

R K Madhav from Kendriya Vidhyalaya Kottayam, Kottayam
Class : Class 7
4 km

Ans 2:

SRIJITA MURMU from DPS Joka, Kolkata
Class : Class 5
4km

Ans 3:

Reeth Bhasin from Jamnabai Narsee International School, Mumbai
Class : Class 5

Ans 4:

naman from PSBBM, Chennai
Class : Class 1
answer will be d 4 kilo meters

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Ved Parixit Brahmbhatt from Hillwoods School, Gandhinagar
Subject :NSO    Class : Class 9

Ans 1:

Shrestha Dutta from Julien Day School, KALYANI
Class : Class 10
force=change in momentum/time interval(del t) impulse=change in momentum=force * time interval(del t) SI unit of impulse is newton second or Ns. CGS unit of impulse is dyne second .

Ans 2:

Aarthi from Prince matriculation higher secondary school , Chennai
Class : Class 9
SI unit of impluse is Newton

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Sanjana Thampy from Ncfe, Bangalore
Subject :NSO    Class : Class 9

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Aditya Sai Vemparala from Amanora school, Pune
Subject :NSO    Class : Class 6

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Aditya Sai Vemparala from Amanora school, Pune
Subject :NSO    Class : Class 6

Ans 1:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 5
I think option d is correct

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K Manaswani from Sri Chaitanya olympaid, Vijayawada
Subject :NSO    Class : Class 6

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Dev Rawat from R D Rajpal School, New Delhi
Subject :NSO    Class : Class 7

Ans 1:

arijit paul from New Town School, Kolkata
Class : Class 9
ans is D

Ans 2:

Shrijan Sanjit Pal from Lakshadham High School, Mumbai
Class : Class 7
The answer is B

Ans 3:

AAYUSH JHA from DPS BOPAL AHMEDABAD, Ahmedabad
Class : Class 8
THE ANSWER IS [B]

Ans 4:

arijit paul from New Town School, Kolkata
Class : Class 9
ans is D

Ans 5:

Shrijan Sanjit Pal from Lakshadham High School, Mumbai
Class : Class 7
The answer is B

Ans 6:

Khwahish Sharma from Oakfield Public School , Jaipur
Class : Class 7
The answer should be B because we cannot make wool from beard of any animal.

Ans 7:

AAYUSH JHA from DPS BOPAL AHMEDABAD, Ahmedabad
Class : Class 8
THE ANSWER IS [B]

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Aditya Sai Vemparala from Amanora school, Pune
Subject :NSO    Class : Class 6

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sandeep shinde from st mary champion school, indore
Subject :NSO    Class : Class 2

Ans 1:

ALICE from CENTRAL ACADEMY, UDAIPUR
Class : Class 1
slanting line should be 10

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Pulkit Khanna from DELHI PUBLIC SCHOOL, RUBY PARK, KOLKATA, Kolkata
Subject :NSO    Class : Class 7

Ans 1:

Harshil Malhotra from Takshila, Mandi
Class : Class 8
D)

Ans 2:

Pulkit Khanna from DELHI PUBLIC SCHOOL, RUBY PARK, KOLKATA, Kolkata
Class : Class 7

Ans 3:

Ayaan from DPS DLF City Phase-2, Gurugram
Class : Class 7
Ans is D(ELECTROMAGNET)

Ans 4:

Khwahish Sharma from Oakfield Public School , Jaipur
Class : Class 7
Answer d is correct because car batteries provide electricity to the cars,so it is a source of electricity and dry cells is a type of battery commonly used for portable electrical devices. It provide energy to many things which we daily use like TV remotes , rc cars , torches etc . Dinamo is also a source of electricity . But electromagnet does not provide us electricity/ energy .

Ans 5:

Praveen Sankar from Amrita vidyalayam, Tuticorin
Class : Class 7
dynamo

Ans 6:

AAYUSH JHA from DPS BOPAL AHMEDABAD, Ahmedabad
Class : Class 8
ANSWER IS ELECTROMAGNET

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