Mechanics(10) Quiz

1. If g is acceleration surface, the gain P.E of an object of mass m raised from surface o earth to a height equal to radios R of earth is

2. The acceleration in SHM is proportional to:

3. Which of the following is true for ideal fluid?

4. A disc and a ring of same mass and radius roll with same speed. Which has more KE?

5. The dimension of light year is

6. A body has KE = 4J. Momentum is doubled. New KE is:

7. Capillary depression occurs for:

8. Composite rod problem: Extension depends on:

9. Velocity is defined as:

10. If X = (Force × Distance) / Time, dimensions of X are:

11. The magnitude of (A × B) is maximum when angle between them is:

12. If the value of 'g' is same at depth 'd' inside earth and height 'h' above earth

13. The acceleration of free fall on Moon is:

14. Limiting friction is:

15. According to Bernoulli, total energy per unit volume is sum of:

16. At extreme position of SHM, kinetic energy is:

17. The angle between A and B is θ. The value of triple product A·(B×A) is

18. Area under velocity–time graph gives:

19. A body moving on a rough surface finally stops due to:

20. A body thrown vertically upward has acceleration:

21. A stone thrown horizontally has vertical motion equivalent to:

22. Flow of fluid through a pipe is laminar if Reynolds number is:

23. The distances time graph of a particle at time t makes angle 45° with the time axis. After one second, it makes angles 60° with the time axis. What is the average acceleration of the particle?

24. A body thrown vertically upward experiences acceleration:

25. Which law gives quantitative definition of force?

26. If a vector is multiplied by −1, its:

27. A body projected vertically upward has zero acceleration at:

28. A block of mass 2 kg is placed on a table. If a force of 3 N is applied on the block parallel to table then frictional force between block and floor if coefficient of friction is 0.5

29. A force F1 acts on a particle so as to accelerate it form rest to a velocity v. The force F1 is then replaced by F2 which decelerates it to rest.

30. The maximum height attained by the projectile does not depend on

31. Which quantity has dimensions ML²T⁻³?

32. The location of a particle has changed. What can we say about the displacement and distance covered by the particle?

33. A manometer measures:

34. When speed increases, momentum:

35. A projectile goes farthest away when angle of projection is

36. For a rolling body, total kinetic energy is:

37. An insect crawls a distance of 4m along north in 10 seconds and then a distance of 3m along east in 5 second average velocity of the insect is:

38. Impulse is numerically equal to:

39. If net force on body is zero, momentum is:

40. Which of these is a non-ideal effect in fluids?

41. Unit of momentum is:

42. If mass is doubled, inertia will:

43. Current is not a vector quantity because it

44. Which physical quantity is independent of direction?

45. Simple harmonic motion is a motion in which the restoring force is:

46. A hollow sphere has moment of inertia equal to:

47. A liquid exerts pressure:

48. At mean position, the acceleration of a particle in SHM is:

49. Capillary tube flow is governed by:

50. Moment of inertia of a rod of length L about one end is: