ICSE Class 10 Physics 2023 Solved Paper

SECTION A

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Question : 2 of 76

Marks: +1, -0

When the speed of a moving object is doubled, then its kinetic energy :

Solution:

(d) becomes four times.
Explanation : Since, K.E.

=\;{1}/{2} m v^2

∴ \;\;

K.E

α v^2

(If

m

remains constant)
So, if speed is doubled, Kinetic Energy becomes square of double i.e, four times.

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