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