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Ashwak from Cambridge International School, Saudi Al Dera
Subject :NSO    Class : Class 5

Ans 1:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
B

Ans 2:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
d

Ans 3:

Ira Jamsandekar from Shantiniketan, KOLHAPUR
Class : Class 6
Single pulley does not provide any mechanical advantage, it only changes the direction of force while an inclined plane provides mechanical advantage. This means the efforts required to life the same amount of load on an inclined plane is lesser than that by a single pulley. (Pulley provides mechanical advantage only if we use more than one pulley).Lesser the inclination more is mechanical advantage and lesser the effort. That means the correct answer should be 'D'

Ans 4:

Samarth Sabari from GIIS, Singapore
Class : Class 6
B

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Ashwak from Cambridge International School, Saudi Al Dera
Subject :NSO    Class : Class 5

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Aaryan from New horizons public school , Mumbai
Subject :NSO    Class : Class 8

Ans 1:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
The answer is option c

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Priyam Bhattacharya from cambridge court high school, jaipur
Subject :NSO    Class : Class 5

Ans 1:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

Ans 2:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3

Ans 3:

Swarit from Indian School Wadi kabir, Muscat
Class : Class 6
Of the three mediums, sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Sound waves need a medium to pass through. Liquid molecules are not packed as tightly as solids, and gases are very loosely packed. The spacing of the molecules enables sound to travel much faster through a solid than a liquid or a gas. Sound travels about four times faster and farther in water than it does in air. That means the right answer is Option D.i am the smartest guy in sofi have got once international rank 1in level 2

Ans 4:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 5:

Mithul Pranav KB from Narayana Olympiad School Madipakkam, Chennai
Class : Class 5

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Harsh Sobti from the samhita academy, BLR
Subject :NSO    Class : Class 4

Ans 1:

vighneshwar from study hall, Lucknow
Class : Class 5
B

Ans 2:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
the answer is a a a a a a a a!!!!!!!!!!!!

Ans 3:

somesh from cps katol road, nagpur
Class : Class 4
B

Ans 4:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 6
option B

Ans 5:

Priya Kulkarni from Podar international school , Ratnagiri
Class : Class 4
B

Ans 6:

bswarajya from Mount Litera Zee School, Bengaluru
Class : Class 5
B

Ans 7:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
Harsh , the answer is B not A

Ans 8:

Anirudh Bhattacharjee from THE LEXICON INTERNATIONAL SCHOOL KALYANI NAGAR PUNR, Pune
Class : Class 5
option b is the correct answer

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Harsh Sobti from the samhita academy, BLR
Subject :NSO    Class : Class 4

Ans 1:

Ashwak from Cambridge International School, Saudi Al Dera
Class : Class 8
The answer is A .......

Ans 2:

shreyash rawat from podar international school, pune
Class : Class 6
the answer is[ A]

Ans 3:

Subham Halder from Av academy, Kolkata
Class : Class 4

Ans 4:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 6
option C

Ans 5:

UMANG from spring dale college, Lucknow
Class : Class 7
The answer is option A

Ans 6:

vighneshwar from study hall, Lucknow
Class : Class 5
C

Ans 7:

Pragnay Priyadarshi from Ganges Valley School, HYDERABAD
Class : Class 4
c is the right option

Ans 8:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
snowhite corrrect

Ans 9:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5

Ans 10:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5

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Karangat house from Navy Children School, Payyannur
Subject :NSO    Class : Class 3

Ans 1:

jayasree from montessori school, KURNOOL
Class : Class 3

Ans 2:

Kavya agrawal from OP Jindal school, Raigarh
Class : Class 3
Question in complete

Ans 3:

jayasree from montessori school, KURNOOL
Class : Class 3
question incomplete

Ans 4:

Saathvik Sriram from euroschool whitefield, Bangalore
Class : Class 5
question is incomplete

Ans 5:

Kavya agrawal from OP Jindal school, Raigarh
Class : Class 3

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Swastik from st marys school, new delhi
Subject :NSO    Class : Class 5

Ans 1:

ANUSHA from SATYA PRAKASH PUBLIC SCHOOL, Jabalpur
Class : Class 7

Ans 2:

ANUSHA from SATYA PRAKASH PUBLIC SCHOOL, Jabalpur
Class : Class 7

Ans 3:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 4
Q should be water salt and P should be pure water

Ans 4:

P A Reyyansh from Ann Mary School, Dehradun
Class : Class 6
dumb SOF

Ans 5:

Priyam Bhattacharya from cambridge court high school, jaipur
Class : Class 6
yes you are right

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Diti Sharma from Amity International School, Noida
Subject :NSO    Class : Class 8

Ans 1:

khushi Joshi from Svkm , Mumbai
Class : Class 9
But gallium is in solid state at room temperature (20oC)

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keosha jain from saint francis convent intercollege , jhansi
Subject :NSO    Class : Class 8

Ans 1:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 8
why does it say b is wrong(and c is correct) in the solution and that b is the correct answer?Isn't it C?

Ans 2:

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

Ans 3:

Akshara from NPS, Bengaluru
Class : Class 8
??

Ans 4:

SANVI from D PS VADODARA, Vadodara
Class : Class 3

Ans 5:

Naivedya Moondra from Lake Montfort, BANGALORE
Class : Class 8
Yes. Why does it say that?

Ans 6:

Akshara from NPS, Bengaluru
Class : Class 8
Completely agree. ????

Ans 7:

Palchin from Naval public school, Uran
Class : Class 8
in the solution it says that option b is wrong then it says that that the correct option is option b please explain

Ans 8:

Akhil Budithi from Kennedy high the global school , Hyderabad
Class : Class 8

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