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Online Tests
Physics 9th Class English Medium Unit 4 Online Test MCQs With Answers
Question # 1
A body is said to be in __________ equilibrium if after a slight tilt return to its previous position:
Choose an answer
Stable
Unstable
Neutral
None
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Question # 2
Centre of gravity of uniform square is:
Choose an answer
Intersection of diagonals
Point of intersection of medians
At centre
None of these
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Question # 3
_____________ easily undo bolt?
Choose an answer
Long spanner
Medium
Short spanner
Every spanner
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Question # 4
The angle between rectangular components of a vector is
Choose an answer
0°
90°
180°
270°
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Question # 5
.............. is example of vector.
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Length
Force
Mass
Time
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Question # 6
The number of forces that can be added by head to tail rule are
Choose an answer
2
3
4
Any Number
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Question # 7
Center of gravity of an irregular shaped body can be found with help of:
Choose an answer
Screw guage
Plumbline
Meter rode
Wedge
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Question # 8
To find x component of force 'F' we use formul:
Choose an answer
F Sin 𝜽
F Cos 𝜽
F tan 𝜽
F/F1
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Question # 9
If there is no change in state of motion, then the body is said be i:
Choose an answer
Rest
Motion
Equilibrium
Rest & motion
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Question # 10
The value of sin θ at an angle of 60o is
Choose an answer
0.5
0
0.707
0.866
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Question # 11
Sin 45 is equal to:
Choose an answer
Zero
0.5
0.707
1
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Question # 12
The number of perpendicular components of a force are
Choose an answer
1
2
3
4
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Question # 13
A body is in equilibrium when its
Choose an answer
Acceleration is uniform
Speed is uniform
Speed and acceleration are uniform
Acceleration is zero
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