Which of the following types of force can do no work on the particle on which it acts ?

Related Mcqs:

1. The penetration power of alpha particle as compared to beta particle is_______________?

   A. 10 times more
   B. 100 times more
   C. 100 times less
   D. 10 times less

2. A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand. If the hand moves 0.2 m while applying the force and the ball goes up to 2 in height further, find the magnitude of the force. Consider g = 10m/s 2

   A. 22N
   B. 16N
   C. 20N
   D. 4N

   Submitted by: Huzaifa Naseer

3. A force On particle is conservative if:________?

   A. It’s works equals the change in the kinetic energy of the particle.
   B. It’s obeys Newton’s second law
   C. It’s obeys Newton’s third law
   D. It work depends on the end points of every motion, not on the path between.

   Submitted by: Shuaib Uddin

4. Work done will be maximum if the angle between the force F and displacement d is______________________?

   A. 45°
   B. 90°
   C. 180°
   D. 0°

   Submitted by: admin

5. When a force is parallel to the direction of motion of the body, then work done on the body is_____________________?

   A. zero
   B. minimum
   C. infinity
   D. maximum

6. Work done by variable force is determine by dividing____________________?

   A. force into small interval
   B. displacement into small interval
   C. both force and displacement into small intervals
   D. force into small and displacement into large intervals

7. Work done by the force of friction is____________________?

   A. always positive
   B. always negative
   C. positive only for small frictional force
   D. positive only for large frictional force

8. Coercive force is the force which opposes ____________________?

   A. Demagnetization
   B. Breakage
   C. Extension
   D. Surface cracking

9. Two identical metal balls with charges + 2Q and – Q are separated by some distance, and exert a force F on each other. They are joined by a conducting wire, which is then removed. The force between them will now be_________?

   A. F
   B. F/2
   C. F/4
   D. F/8

   Submitted by: Tauseef Ali

10. A particle of mass m charge q and speed V enters a uniform magnetic radius r. The radius r of the circle is_________________?

    A. independent mass m
    B. directly proportional to m
    C. directly proportional to q
    D. directly proportional to B