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 2:
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Aarnav Grover
from
Anand Niketan Shilaj, Ahmedabad
Class : Class 9
I don't understand is the answer A or C
Ans 5:
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Ans 9:
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Advika Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
Question's confusing I didn't get A's explanation please help
Ans 10:
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Advika Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
I was thinking A or C please explain
Ans 11:
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Rajveer Santosh Mulik
from
Rims International School, Pune
Class : Class 4
THE BALL AT THE HIGHEST POINT HAS HIGHEST POTENTIAL ENERGY