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Online Tests
Physics 9th Class English Medium Unit 3 Online Test MCQs With Answers
Question # 1
When a force of 4 Newton is applied on a body of mass 2 kg, the acceleration produced in it will be:
Choose an answer
2 ms
-2
4 ms
-2
8 ms
-2
6 ms
-2
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Question # 2
Coefficient of friction between tyre and dry road is.
Choose an answer
0.6
1
0.05
0.2
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Question # 3
The approximate weight of 80 gram mass on the surface of Earth is
Choose an answer
800 N
80 N
0.8 N
8 N
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Question # 4
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 # 5
The unit of momentum is :
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kgms
-1
kgms
-2
m sec
None
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Question # 6
Which of the following is the unit of momentum?
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Nm
Kg ms
-2
Ns
Ns
-1
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Question # 7
Formula of weight is derived from which law?
Choose an answer
First law
Second law
Third law
Law of conservation of momentum
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Question # 8
The Atwood machine can be used to find the acceleration due to gravity using the equation
Choose an answer
g = 2 (m1 x m2)/(m1 + m2) a
g = (m1 - m2)/(m1 + m2) a
g = (m1 + m2)/(m1 - m2) a
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Question # 9
A string is stretched by two equal and opposite forces 10 N each. The tension in the string is
Choose an answer
Zero
5N
10N
20N
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Question # 10
The centripetal acceleration is always along.
Choose an answer
Normal force
Centripetal forces
Mass
Horizental forces
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Question # 11
The unit of coefficient of friction .
Choose an answer
Newton
ms
-1
ms
-2
No unit
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Question # 12
Rate of change of momentum is equal to:
Choose an answer
Mass
Torque
Weight
Force
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Question # 13
The rage of change of momentum is equal.
Choose an answer
Mass
Force
Weight
None
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