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