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ICSE Class 10 Physics Question 1 of 27

Solved 2024 Specimen Paper ICSE Class 10 Physics — Question 2

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2
Question

Question 1(ii)

The kinetic energy of a given body depends on the:

  1. position
  2. centre of gravity of body
  3. momentum
  4. displacement
Answer

momentum

Reason — As kinetic energy = 12\dfrac{1}{2} mv 2

If we multiply and divide by m then we get, (mv)22m\dfrac{\text{(mv)}^2}{2\text{m}}

As mv = momentum (p), so

kinetic energy = p22m\dfrac{\text{p}^2}{2\text{m}}

Therefore, kinetic energy of a given body depends on the momentum.