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