Angular acceleration – MCQs

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1. Angular acceleration is defined as the:



2. The SI unit of angular acceleration is:



3. Symbol of angular acceleration is:



4. Angular acceleration is a:



5. Dimensional formula of angular acceleration:



6. Formula for angular acceleration:



7. If angular velocity increases with time, angular acceleration is:



8. If angular velocity decreases with time, angular acceleration is:



9. Angular acceleration in uniform circular motion is:



10. Angular acceleration is caused by:



11. Relation between torque and angular acceleration:



12. If a wheel speeds up from 20 rad/s to 40 rad/s in 4 seconds, angular acceleration =:



13. Instantaneous angular acceleration is given by:



14. A fan blade slowing down is an example of:



15. The angular acceleration of Earth’s rotation is:



16. Angular acceleration is maximum when:



17. If α = 0, then angular velocity is:



18. The relationship between linear acceleration (a) and angular acceleration (α) is:



19. Angular acceleration can be produced without torque.


20. The unit degree/s² is:



21. If a body rotates uniformly, angular acceleration =:



22. The angular acceleration vector is along:



23. If a wheel rotates with constant angular acceleration, its angular displacement is:



24. When angular acceleration is constant, motion is called:



25. In SHM, angular acceleration is proportional to:



26. Angular acceleration in SHM is directed:



27. Angular acceleration and angular velocity are related by:



28. If a wheel slows down uniformly, its angular acceleration is:



29. The angular acceleration of the second hand of a clock is:



30. The greater the moment of inertia, the ______ the angular acceleration for a given torque.



31. If torque doubles, angular acceleration:



32. In rotational motion, angular acceleration corresponds to:



33. Which of the following is not a unit of angular acceleration?



34. Negative angular acceleration is also called:



35. If ω = 10 rad/s and reduces to 0 in 5 seconds, angular acceleration =:



36. Angular acceleration depends on:



37. In uniform acceleration, final angular velocity is:



38. The angular acceleration of the Earth’s revolution around the Sun is:



39. If α is constant, angular displacement is proportional to:



40. If a wheel turns through θ = t² rad in t seconds, angular acceleration =:



41. The angular acceleration of a rigid body is:



42. Which of the following factors does not affect angular acceleration?



43. Angular acceleration vector direction is determined by:



44. If α = 0, angular displacement is:



45. A freely spinning top with no torque has:



46. Angular acceleration is directly proportional to:



47. If α is negative, the body is:



48. Average angular acceleration =:



49. A ceiling fan switched off shows:



50. In rotational dynamics, angular acceleration plays the same role as ______ in linear dynamics.



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