ICSE Class 10 Physics 2023 Paper

SECTION A

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Choose the correct answers to the questions from the given options.

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.

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

\therefore \;\;

K.E

\alpha 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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