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Science
Viscosity
Quiz 2
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Q.1
The best example of a substance with low viscosity is?
Honey
Soap
Marbles
Water
Q.2
Which of the following liquids is viscous?
honey
water
soy sauce
cooking oil
Q.3
Which material would have the greatest viscosity at normal temperatures?
Peanut Butter
Jelly
Milk
Marshmallow Fluff
Q.4
Which of these factors affects Viscosity?
Temperature
Colour
Taste
Q.5
Which of these are fluids?
Oxygen
Water
Rocks
Both A & B
Q.6
Viscous force between the two layers having unit area and unit velocity gradient.
Coefficient of viscosity
Surface tension
Elasticity
None of the above
Q.7
Viscous force between the two layers is directly proportional to distance between the layers.
True
False
Q.8
What is the S.i. unit of viscosity?
Candela
Poise
Newton
No unit
Q.9
As the temperature of lava increases, ________
its viscosity decrease
it begins to harden
its viscosity increases
it can flow a much short distance
Q.10
TRUE OR FALSE: A substance that flows quickly has high viscosity...
True
False
Q.11
Fluids with very low viscosity flow very _______________________.
fast
not at all
slow
whenever it wants
Q.12
Fluids with very high viscosity flow very _______________________.
fast
not at all
slow
whenever it wants
Q.13
As temperature increases viscosity of a gas _______________.
increases
stays the same
decreases
Q.14
As temperature increases viscosity of a liquid _______________.
increases
stays the same
decreases
Q.15
As temperature increases ,viscosity of gas _______________.
Decreases
stays the same
Increases
Q.16
If you needed to make a liquid less viscous, select all the things you could do to lower the viscosity.
add solvent
increase temperature
evaporate away solvent
Both A & B
Q.17
If the tray was cooled down, how would this affect the syrup's flow rate?
It would go up
It would go down
It would not change
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