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Physics 9th Class English Medium Online Test MCQs With Answers
Question # 1
Convection of heat is a process of heat transfer due to;
Choose an answer
Random motion of molecules
Downward motion of molecules
Upward motion of molecules
Free motion of molecules
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Question # 2
Resultant vector can be found by:
Choose an answer
θ=tan
-1
Fy/ Fx
θ=tan
[
Fy/ Fx ]
θ=tan
-1
[ Fy/ Fj ]
None of these
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Question # 3
A couple consists of how many forces:
Choose an answer
1
2
3
4
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Question # 4
Unit of strain is:
Choose an answer
Nm
-2
Nm
N
No unit
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Question # 5
The power of electric kettle is 500W and takes 2s to heat up, find heat generated?
Choose an answer
E = 250 w
E = 1000 w
E = 10000 J
1KJ
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Question # 6
On heating the strip, ___________ expands more than_______
respectively.
Choose an answer
Brass, Iron
Iron, Brass
Copper, brass
Brass, copper
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Question # 7
Hydraulic press in works on:
Choose an answer
Pascal's law
Hook's law
Archimedes law
Principle of floatation
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Question # 8
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 # 9
When equal opposite forces are added then the resultant force is ______________
Choose an answer
Double
Triple
Zero
None of these
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Question # 10
To make a body more stable ________ should be lowered:
Choose an answer
Axis of rotation
Center of gravity
Stabilty
None
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Question # 11
Land breeze from land to sea during:
Choose an answer
Day
Night
Afternoon
Morning
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Question # 12
Land and sea breezes are the result of:
Choose an answer
Absorption
Radiation
Conduction
Convection
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Question # 13
Evaporation causes:
Choose an answer
Melting
Boiling
Freezing
Cooling
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