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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
Which is unitless quantity:
Choose an answer
Mass
Force
Inertia
Momentum
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Question # 3
Inertia depends upon:
Choose an answer
Weight
Mass
Density
Force
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Question # 4
The unit of momentum is :
Choose an answer
kgms
-1
kgms
-2
m sec
None
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Question # 5
Rolling friction is___________ then sliding friction :
Choose an answer
Greter
Less
Some
Half
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Question # 6
A sugar bag of 1 kg has a momentum 25 kg m/s than its velocity is :
Choose an answer
v = 20 m/s
v = 25 kg
V = 25 m/s
v = 25 kg/ms-1
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Question # 7
If the velocity of moving body in circle is doubled, then its centripetal force is
Choose an answer
Double
Half
Four times
Remain
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Question # 8
Newton related inertia of the body with its
Choose an answer
Weight
Mass
Density
Force
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Question # 9
The machine which use unequal masses to find the value of "g" is ________
Choose an answer
Free fall apparatus
Atwood machine
Pulley
None
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Question # 10
Action and Reaction are always on:
Choose an answer
Same body
Different bodies
Any body
None of these
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Question # 11
Which types of friction is minimum?
Choose an answer
Sliding
Limiting
Rolling
None
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Question # 12
The centripetal acceleration is always along.
Choose an answer
Normal force
Centripetal forces
Mass
Horizental forces
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Question # 13
Friction is due to
Choose an answer
Roughness
Shape
Smoothness
None
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