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4th Chapter

9th class Physics Chapter 4 (English Medium)

Here you can prepare 9th Physics English Medium Chapter 4 (Turning Effect of Forces) Test. Click the button for 100% free full practice test..

Matric Part 1/9th Class Physics Chapter 4 MCQ Test With Answer for Chapter 4 Turning Effect of Forces

Matric Part 1/9th Class Physics Chapter 4 MCQ Test With Answer for Chapter 4 Turning Effect of Forces

Sr. # Questions Answers Choice
1 Tan 90<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°=</span>
  • A. Infinity
  • B. 1
  • C. 0
  • D. 0.866
2 The centre of gravity of uniform triangle is:
  • A. Point of intersection of medians
  • B. On its vertex
  • C. On middle point of its axis
  • D. Point of intersection of diagonal
3 It is useful to know the location of center of gravity of a body in problem dealing with
  • A. Motion
  • B. Equilibrium
  • C. Charge
  • D. Velocity
4 Unit of Resultant force is:
  • A. Nm<sup>-2</sup>
  • B. N.m
  • C. Nm<sup>-1</sup>
  • D. N
5 A force of 10 N is making and angle of 30<sup>o</sup>with the horizontal. Its horizontal component will bw:
  • A. 4 N
  • B. 5 N
  • C. 7 N
  • D. 8.7 N
6 Anticlockwise torque is taken:
  • A. Negative
  • B. Neutral
  • C. Positive
  • D. Nil
7 Racing cars are made stable by :
  • A. Increasing their speed
  • B. Decrease their mass
  • C. Lowering their center of gravity
  • D. Decreasing their width
8 A body is in equilibrium when its:
  • A. Acceleration in uniform
  • B. speed in uniform
  • C. Speed and Acceleration are uniform
  • D. Acceleration is Zero.
9 Two forces of 2N and 4N are acting in opposite directions, Their resultant force will be
  • A. 2 N
  • B. 4 N
  • C. 6 N
  • D. 8 N
10 F<sub>x</sub>= 4 N and F<sub>y</sub>=3N what is F?
  • A. 5N
  • B. 1.5 N
  • C. 16 N
  • D. 9 N

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