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Chapter 6 Equilibrium - Test 3
1.
The weight of the electric bulb which is hanging with ceiling is acting
1) upward
2) downward
3) to words right
4) to words left
2.
A boy of mass 40 kg sits on the seesaw. What will be the weight of the boy.
1) 450N
2) 400N
3) 200N
4) 300N
3.
If on disturbing a body slightly, there is no change in the height of its center of gravity the body is in state of _______ equilibrium.
1) Neutral
2) unstable
3) stable
4) both b & C
4.
The reaction forces of the table is acting _____________
1) upward
2) to wards left
3) downward
4) towards rights
5.
When an object undergoes acceleration.
1) its mass must be decreased
2) its speed must be increased
3) it must be falling towards the earth
4) it must have force acting on it
6.
Which is the best approximation of the weight of an object of mass 800 gram
1) 800N
2) 8N
3) 80 N
4) 0.8 bN
7.
The center of gravity of an object
1) is always at its geometrical center
2) is always inside the object
3) none of above
4) at its centre
8.
Parallel forces which act in the same direction are called _________ parallel forces
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9.
Torque is a _______ quantity.
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10.
Parallel forces which act opposite in direction are called ______ parallel forces
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11.
If the distance between two points of the body remains the same then such a body is called ____ body.
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12.
During rotation the particles of the body rotate along fixed________
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13.
The axis of rotation is the straight line joining the _______ of the circles
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14.
The perpendicular distance between the line of action of the force and the axis of rotation is known as _________
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