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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:

Class : Class 4
I don't understand is the answer A or C

Ans 2:

Class : Class 4
Question's confusing I didn't get A's explanation please help

Ans 3:

Class : Class 4
I was thinking A or C please explain

Ans 4:

Class : Class 4
The answer is A

Ans 5:

Class : Class 4
Same as ASHMI

Ans 6:

Class : Class 4
THE BALL AT THE HIGHEST POINT HAS HIGHEST POTENTIAL ENERGY

Ans 7:

Class : Class 5
Answer is A.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
I also cannot understand this.

Ans 2:

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:

Class : Class 8
the answer would be c.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

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:

Class : Class 6

Ans 4:

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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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
Its on 23 Nov 17. All the best

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
Please tell the answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
correct answer is RIYA option b

Ans 2:

Class : Class 6
Loke the subject and good in Subject are two diffrent things..So,option D should be correct

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