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5.work,energy,power and collision — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics5.work,energy,power and collision1 Mark
MCQ
The quantities remaining constant in a collision are
  • A
    Momentum, kinetic energy and temperature
  • B
    Momentum and kinetic energy but not temperature
  • C
    Momentum and temperature but not kinetic energy
  • ✓
    Momentum but neither kinetic energy nor temperature
✓

Answer

Correct option: D.
Momentum but neither kinetic energy nor temperature
d
(d) since velocities of the colliding bodies change, the $K.E.$ will change. The shapes of the bodies at the time of collision change due to the force, hence temperature will also change.

Only the momentum will remain constant.

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