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 helpful materials for all types of students. Must share with your fellows if helpful.
Physics Chapter 4 Class 9 MCQs
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#1. The centre of gravity of a triangle is:
#2. The formula of torque is:
#3. First condition of equilibrium is:
#4. Racing cars are made stable by:
#5. The value of sin90 is:
#6. The moment arm is represented by a sign:
#7. sin45° = _____.
#8. S.I. unit of torque is:
#9. Second condition of equilibrium is:
#10. If Fy=4N, Fx=3N, what is magnitude of resultant force?
#11. The number of perpendicular components of a vector are:
#12. Number of factors on which torque depends:
#13. The centre of gravity of a sphere is:
#14. When centre of gravity is at the highest position, body will be in:
#15. cosθ = _____.
#16. The centre of gravityof an irregular shaped body can be found with the help of:
#17. A body is in equilibrium when its:
#18. Two equal but unlike parallel forces having different line of action produce:
#19. In a right triangle, length of base is 4 cm and perpendicular is 3cm. Its tanθ is equal to:
#20. A force of 10N is making an angle of 60° with x-axis then its horizontal component will be:
#21. A body is in neutral equilibrium when its centre of gravity:
#22. Complete equation Fy/Fx = ________
#23. sinθ = _____.
#24. cos90 = ______.
#25. The forces that are parallel to each other and have same direction are:
#26. The states of equilibrium are:
#27. The symbol of sigma is:
#28. sin60° = _____.
#29. A force of 10N is making an angle of 30° with the horizontal. Its horizontal component will be:
#30. cos60° = _____.
#31. sin30° = _____.
#32. A couple is formed by:
#33. Turning effect of a force is:
#34. According to second condition of equilibrium must be zero:
#35. If force is 200N and legth of spanner is 0.15m then torque will be:
#36. The direction of force with x-axis is given by:
#37. Torque depends on:
#38. The number of forces that can be added by head to tail rule are:
#39. The direction of resultant vector can be found by:
#40. cos30° = _____.
#41. The value of tan45° is ________.
#42. The net torque acting on a rotating body with uniform speed is:
#43. The centre of gravity of uniform ______ is the point of intersection of its diagonals.
9th Class All Book MCQs Physics
Chapter 1 – Physical Quantities and Measurements
Chapter 4 – Turning Effect of Forces
Chapter 7 – Properties of Matter
