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Physics — Second Secondary

Physics — Second Secondary

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Physics — Second Secondary 2026/2027

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Question bank: Chapter 4: Hydrodynamics

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  • Questions count: 5
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1.
The SI unit of the coefficient of viscosity is:
N/m2
N·s/m2
N·m
kg/m3
2.
The dimensional formula of the coefficient of viscosity is:
MLT−2
ML−1T−1
ML−1T−2
ML2T−1
3.
In the two-plate model, the force needed to keep the upper plate moving at constant speed is directly proportional to all EXCEPT:
the area of the plate
the speed of the plate
the coefficient of viscosity
the distance between the plates
4.
If the distance between the plates is doubled (same A, v, η) the force becomes:
double
half
four times
unchanged
5.
The coefficient of viscosity of a pure liquid depends on:
its type and temperature
the size of the container
the speed of the plate
the area of the plate
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