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