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