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Mannat Verma from Vivek High School , Chandigarh
Subject :NSO    Class : Class 4

Ravi set up an experiment as shown in the given diagram. The diagram shows five identical balls being suspended on a rod by strings of different lengths. Ravi then cut all five strings at the same time and the balls were allowed to fall freely to the ground. Which of these statements holds true for this experiment?


A Ball b had the greatest impact on the ground.
B Ball a had more potential energy than ball b at the start.
C Ball d had the highest potential energy at the start.
D Ball a and e had different amounts of potential energy at the start due to their different positions along the rod.


Ans 1:

Aarnav Grover from Calorx olive international school, Ahmedabad
Class : Class 4
I don't understand is the answer A or C

Ans 2:

ASHMI Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
Question's confusing I didn't get A's explanation please help

Ans 3:

ASHMI Narkar from Vibgyor High Airoli, Navi Mumbai
Class : Class 4
I was thinking A or C please explain

Ans 4:

Snow White from Le Setea , Paris
Class : Class 4
The answer is A

Ans 5:

Kavin from ISG , Muscat,
Class : Class 4
Same as ASHMI

Ans 6:

Rajveer Santosh Mulik from Rims International School, Pune
Class : Class 4
THE BALL AT THE HIGHEST POINT HAS HIGHEST POTENTIAL ENERGY

Ans 7:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is A.

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Ritisha Kapur from BlueBells School Internnational, New Delhi
Subject :NSO    Class : Class 6

Ans 1:

Bhabani Prasad from Narayan School, Kolkata
Class : Class 6
I also cannot understand this.

Ans 2:

Ritisha Kapur from BlueBells School Internnational, New Delhi
Class : Class 7
PEOPLE PLEASE TELL ME THE ANSWER AS I NEED TO KNOW URGENTLY 'CAUSE I DIDN'T UNDERSTAND. PLEASE TELL ME THX RITISHA

Ans 3:

Soham Agarwal from Shiv Nadar, Ghaziabad
Class : Class 8
the answer would be c.

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diya gupta from dps, bangalore
Subject :NSO    Class : Class 5

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diya gupta from dps, bangalore
Subject :NSO    Class : Class 5

Ans 1:

Kenisha Tamboli from Mansukhbhai Kothari National School, Pune
Class : Class 6

Ans 2:

Ali Hussain from Delhi Private School Dubai, Dubai
Class : Class 6
Once pure water is heated beyond boiling point, it starts to convert into water vapour and evaporate. If 100 ml of pure water is boiled for 15 minutes after it reached boiling point, some amount of water will evaporate, and the level of water in the container will go down. The temperature of water will remain the same. Option B shows water at 100°C and its volume as 65 ml. So, Option B is the right answer.

Ans 3:

Samyuktha from PSBB, Chennai
Class : Class 6

Ans 4:

Zayed Zaman from Global indian international school, Singapore
Class : Class 5
But if its been boiling for 15 minutes after it has reached its boiling point, it can't be 100 degrees

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Ali Hussain from Delhi Private School Dubai, Dubai
Subject :NSO    Class : Class 5

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Ali Hussain from Delhi Private School Dubai, Dubai
Subject :NSO    Class : Class 5

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Ayush lathkar from Horizon Discovery Acadmey, Nanded
Subject :NSO    Class : Class 5

Ans 1:

Agastya from NCS Mumbai, Mumbai
Class : Class 7
Its on 23 Nov 17. All the best

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Ali Hussain from Delhi Private School Dubai, Dubai
Subject :NSO    Class : Class 5

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Ali Hussain from Delhi Private School Dubai, Dubai
Subject :NSO    Class : Class 5

Ans 1:

Lakshmi from FPS, Bangalore
Class : Class 6

Ans 2:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 5
Please tell the answer

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Gargi SB from SSRVM, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

Vanshika Gupta from Kulachi Hansraj Model School, Delhi
Class : Class 4
correct answer is RIYA option b

Ans 2:

Rajesh Ranjan from St Gregorios High School, Mumbai
Class : Class 6
Loke the subject and good in Subject are two diffrent things..So,option D should be correct

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