Physics MCQs on Work, Momentum (All classes)

Physics MCQs on Work, Momentum: In this blog post, we have provided important Physics Multiple choice questions on work and Momentum.

These Physics MCQs on Work are very useful for all classes (9, 10, 11, 12, other competitive exams).

Physics MCQs on Work, Momentum

1. Work is a

 scalar quantity

 vector quantity

 neutral

 None of these

2. Mechanical energy of a system exists in form

 Kinetic energy

 Potential energy

 Kinetic energy and Potential energy

 None of these

3. Work done by a conservative force does not depend

 on the path of the moving object

 on its initial position

 on its final position

 on its initial and final positions

4. Work done by a conservative force depends

 on the path of the moving object

 on its initial position

 on its final position

 on its initial and final positions

5. Work done is path dependent for

 a conservative force

 a non-conservative force

 both A & B

 None of the These

6. Laws of conservation of momentum always hold well in

 any type of collision

 elastic collision

 inelastic collision

 None of the These

7. A rigid body can have

 rotational motion

 translational motion

rotational as well as translational motion           

 None of these

8. When no net torque acts on a body

 the angular momentum of the body is minimum

 the angular momentum of the body is maximum

 the angular momentum of the body changes

 the angular momentum of the body remains constant

9. By what percentage does the kinetic energy increase, if the linear momentum is increased by 50%?

 25%

 50%

 125%

 75%

10. What is the angular momentum vector in an orbital motion?

 The vector is along the radius vector

 The vector is perpendicular to the orbital plane

 The vector is parallel to the linear momentum

 The vector is in the orbital plane

11. On which of the following factor does the moment of inertia of an object not depend upon

 Angular velocity

 Axis of rotation

 Distribution of mass

 Mass of an object

12. When the torque acting on the system is zero, which of the following is constant?

 Linear impulse

 Angular momentum

 Linear momentum

 Force

13. The angular momentum of a rigid body is L and its kinetic energy is halved. What happens to its angular momentum?

 L

 L/2

 2L

 L/4

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