MDCAT XI Physics Force and Motion Online Test 2026

1. If the momentum of a body is increased by 50%, the percentage increase in kinetic energy is:

2. A particle has momentum 10 kg·m/s and mass 2 kg. Its kinetic energy is:

3. Two bodies have the same kinetic energy. Which one has greater momentum?

4. A particle has zero momentum. Which statement is always true?

5. For momentum conservation while firing a bullet, the correct system is:

6. A man jumps from a stationary boat. The boat moves backward because:

7. Two bodies stick together after collision. Which statement is correct?

8. A body at rest explodes into two fragments of masses m and 3m. If the smaller fragment moves with velocity 12 m/s, the velocity of the larger fragment is:

9. A gun of mass 4 kg fires a bullet of mass 0.02 kg with a speed of 400 m/s. The recoil speed of the gun is:

10. The law of conservation of momentum is valid only when:

11. Which of the following quantities can be negative?

12. A particle moves such that its velocity changes from 10 m/s to 20 m/s in 5 s, then from 20 m/s to 25 m/s in next 5 s. The motion is:

13. A car completes one full circular round of radius 14 m in 44 s with constant speed. Its average velocity is:

14. A ball is thrown vertically upward. At the highest point:

15. A car moving at 25 m/s comes to rest in 5 s. The magnitude of acceleration is:

16. A particle moves in a circular path with constant speed 10 m/s. Its acceleration is:

17. A body moves in a straight line and returns to its starting point in 10 s. Its average velocity is:

18. A particle moves 4 m east and then 3 m west in 7 s. Find the average speed.

19. The magnitude of acceleration of a projectile at its highest point is:

20. At what time does a projectile reach half of its horizontal range?

21. Two projectiles are projected with equal speed. One is projected at 30°. The other angle (less than 90°) for the same range is:

22. A projectile is fired with speed 20 m/s at an angle of 30°. The speed of the projectile when it returns to the point of projection is:

23. A projectile is thrown vertically upward with speed 20 m/s. After how much time will its speed become half of the initial speed?

24. Which of the following correctly describes the trajectory of a projectile?

25. For a given speed of projection, the maximum range is obtained when the angle of projection is:

26. At the highest point of a projectile’s motion, the direction of velocity is:

27. A projectile passes through two points at the same vertical height during its flight. At these points, which quantity is equal?

28. A projectile is moving under gravity. Which statement is always true?

29. Two projectiles are projected with the same speed at angles θ and (90° − θ). Neglect air resistance. Which statement is correct?

30. A projectile is thrown at an angle θ with the horizontal. At the highest point of its trajectory, which quantity is certainly zero?

31. Which pair represents an action–reaction pair?

32. Newton’s laws are strictly valid in:

33. Two objects of different masses experience the same net force. Which statement is correct?

34. A gun fires a bullet. The recoil of the gun is because:

35. A stone tied to a string is whirled in a circular path. If the string suddenly breaks, the stone will move:

36. A body is moving with constant velocity. Which conclusion is always correct?

37. A ball is thrown vertically upward. At the highest point of its motion, which statement is correct?

38. A force of 30 N acts on a 5 kg block placed on a frictionless surface. If the same force acts on the block while it is tied to another 5 kg block, the acceleration of the first block becomes:

39. block of mass 4 kg is at rest relative to a truck accelerating at 5 m/s² on a smooth road. The pseudo force acting on the block is:

40. A person of mass 50 kg stands in a lift accelerating upward at 2 m/s². The apparent weight of the person is: (Take 10m/s²

41. Two blocks of masses 4 kg and 6 kg are connected by a light string on a smooth horizontal surface. A horizontal force of 20 N is applied on the 4 kg block. The tension in the string is:

42. If the net force on a body is zero, which of the following is always true?

43. body moves with constant speed in a circular path. Which statement is correct?

44. A block rests on a horizontal table. Which force does not act on the block?

45. Two masses m and 3m are connected over a light pulley. The acceleration of the system is:

46. A block just starts sliding on a rough inclined plane. If the inclination angle is increased further, the frictional force:

47. A heavy truck collides head-on with a small car. During collision:

48. A block rests on a smooth floor inside a truck accelerating horizontally with acceleration a. The frictional force on the block is:

49. Two bodies of masses m and 2m are connected by a light string and pulled on a smooth horizontal surface by a force F applied on m. The tension in the string is:

50. A person stands on a weighing scale inside an elevator. The cable suddenly snaps. What will the scale read immediately after the snap?