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Online Tests
Physics 9th Class English Medium Unit 3 Online Test MCQs With Answers
Question # 1
Which law of motion is called law of inertia:
Choose an answer
first law of motion
Second law of motion
Third law of motion
Law of conversation of momentum
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Question # 2
When a block a place on the surface its weight produce.
Choose an answer
Tension
Momentum
Inertia
Normal reaction
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Question # 3
A force of 20 N is acting on a body of mass 8 kg,Its acceleration will be
Choose an answer
2.5 ms-2
4.5 ms-2
5.5 ms-2
3.5 ms-2
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Question # 4
The force which complete a body to move in circle is:
Choose an answer
Centripetal force
Centrifugal force
Perpendicular force
Tension
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Question # 5
The weight of body is 147 N, Its mass will be ________ when g = 10 ms
-2
Choose an answer
1.47 kg
14.7 kg
47 kg
1.51 kg
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Question # 6
When horse pulls a cart, the action is on the:
Choose an answer
Cart
Earth
Horse
Earth and cart
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Question # 7
________ is used to measure the force or weight of a body :
Choose an answer
Physical balance
Spring balance
A and B both
None
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Question # 8
Co-efficient of friction between wood and concrete.
Choose an answer
0.63
0.8
1
0.9
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Question # 9
The velocity and acceleration of the body moving with uniform speed in a circular path will be:
Choose an answer
In same direction
In opposite direction
Mutually perpendicular
Equal
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Question # 10
2nd law of motion is stated as:
Choose an answer
F=m/a
F=ma
F=a/m
F=ma
2
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Question # 11
A body of mass 5 kg i moving with a velocity of 10 ms
-1
. Find the force required to stop it in 2s.
Choose an answer
5 N
25 N
20 N
30 N
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Question # 12
Rate of change of momentum equals:
Choose an answer
Displacement
Acceleration
Force
Velocity
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Question # 13
The static fraction between wood and lather is _______________
Choose an answer
0.6
0.7
0.9
0.8
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