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