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