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