Al-Huda Science Academy has designed Physics Chapter 4 Class 9 MCQs for board preparation. Most of the questions are from the previous board papers. These are helping material for all type of students. Must share to your fellows if helpful.

Time allocated to each question is 30 seconds.

Physics Chapter 4 Class 9 MCQs


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#1. cos60° = _____.

#2. The states of equilibrium are:

#3. The centre of gravity of a sphere is:

#4. The forces that are parallel to each other and have same direction are:

#5. The centre of gravity of a triangle is:

#6. sin60° = _____.

#7. Two equal but unlike parallel forces having different line of action produce:

#8. sin30° = _____.

#9. If force is 200N and legth of spanner is 0.15m then torque will be:

#10. In a right triangle, length of base is 4 cm and perpendicular is 3cm. Its tanθ is equal to:

#11. The direction of resultant vector can be found by:

#12. The value of tan45° is ________.

#13. The number of forces that can be added by head to tail rule are:

#14. Second condition of equilibrium is:

#15. A body is in neutral equilibrium when its centre of gravity:

#16. The formula of torque is:

#17. Complete equation Fy/Fx = ________

#18. cosθ = _____.

#19. First condition of equilibrium is:

#20. cos90 = ______.

#21. The net torque acting on a rotating body with uniform speed is:

#22. sin45° = _____.

#23. Racing cars are made stable by:

#24. If Fy=4N, Fx=3N, what is magnitude of resultant force?

#25. The centre of gravity of uniform ______ is the point of intersection of its diagonals.

#26. The value of sin90 is:

#27. S.I. unit of torque is:

#28. A force of 10N is making an angle of 30° with the horizontal. Its horizontal component will be:

#29. A couple is formed by:

#30. According to second condition of equilibrium must be zero:

#31. Number of factors on which torque depends:

#32. A body is in equilibrium when its:

#33. The direction of force with x-axis is given by:

#34. The number of perpendicular components of a vector are:

#35. The moment arm is represented by a sign:

#36. A force of 10N is making an angle of 60° with x-axis then its horizontal component will be:

#37. cos30° = _____.

#38. Torque depends on:

#39. sinθ = _____.

#40. The symbol of sigma is:

#41. When centre of gravity is at the highest position, body will be in:

#42. Turning effect of a force is:

#43. The centre of gravityof an irregular shaped body can be found with the help of:


By Ahsa.Pk

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