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PPSC Physics Chapter 2 Structural Properties of Matter MCQs With Answers
Question # 1
A piece of weighed wood just floats in water when placed in alcohol will
Choose an answer
Float lower
Float higher
Stay as before
Sink
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Question # 2
Which liquid can flow easily.
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Traacle
Pitch
Ether
All flow with same rate
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Question # 3
The pulsating outflow of blood from the heart by alternate systole and diastole is smoothed out by
Choose an answer
The blocking action of the heart's valves
The viscosity of the blood
The effect of gravity
the elasticity of the blood vessels
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Question # 4
The venturimeter is an instrument used for measuring the
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Viscosity of a liquid
Flow speed of a liquid
Compressibility of a fluid
Specific gravity of a liquid
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Question # 5
The strength per unit volume of a solid is called.
Choose an answer
shear stress
Shear strain
Bulk strength
Bulk modulus
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Question # 6
Highly conducting state of matter is
Choose an answer
Conductors
Plasma
Semiconductors
Insulators
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Question # 7
Artificial polymers are made by a chemicals reaction known as.
Choose an answer
Crystallization
Electroplating
Polymerization
Polarization
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Question # 8
The dimensions of stress are
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[MLT-1]
[ML-1 T]
[ML-1T-1]
[ML-1T-2]
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Question # 9
Which of the following is more viscous
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Air
Honey
Water
Milk
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Question # 10
Venturimeter is a device used to measure
Choose an answer
Density of a fluid
Speed of a fluid
Pressure of a fluid
Viscosity of a fluid
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Question # 11
The word fluid means
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To rise
To fall
To flow
To oppose
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Question # 12
A bodybuilders uses a chest expander with five springs it takes a force of 20 N to Pallone spring out by 15 cm how much force will be needed to extend the expander by 15 cm.
Choose an answer
50 N
75 N
150 N
1000 N
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Question # 13
What is generated when air moves an air foil.
Choose an answer
Thrust
Lift
Drag
Turbulence
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Question # 14
A uniform vertical wire is stretched by hanging a mass from its lower end Which of the following does ot effect the strain in the wire.
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The stress
The upstretched length
The load applied
the Young's modulus of the metal
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Question # 15
The velocity at which laminar flow changes to turbulent flow is called.
Choose an answer
Terminal velocity
Escape velocity
Critical velocity
Uniform velocity
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Question # 16
With increase in temperature the angle of contact of liquid.
Choose an answer
Increases
Decreases
Becomes zero
First increase then decreases
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Question # 17
A cube with sides 2 cm long is made from a material of density 8 g cm -3 What is the density of the block is.
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0.2 g cm-3
0.5 g cm-2
2 g cm-3
5 g cm-3
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Question # 18
Which force pushes up a body in fluid
Choose an answer
Thrust
Lift
buoyant
Pressure
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Question # 19
Blood pressure of a person
Choose an answer
Increases with age
Describe with age
Have no change
Stops with age
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Question # 20
If you float in water with just your nose out the average density of your body must be
Choose an answer
Same as that of water
Greater than that of water
Less than that of water
Zero
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