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