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