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