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