Viscosity and Fluid Dynamics Checkpoint

Check viscosity, Reynolds number, units, flow similarity, and responsible model interpretation.

Scenario

You are comparing two educational flow cases before deciding whether they are dynamically similar.

Question 1

What does Reynolds number compare?

Inertial and viscous effectsMass and weightHeat and workCharge and voltage

Question 2

For rho = 1000 kg/m^3, v = 0.20 m/s, L = 0.010 m, and mu = 0.001 Pa s, what is Re?

Your answerdimensionless

Question 3

Which is a unit of dynamic viscosity?

Pa skgm/sN/C

Question 4

Two cases have the same Reynolds number. What must still be checked before claiming complete similarity?

Geometry and other relevant conditionsOnly fluid colourOnly the dateNothing else

Answer keys, scoring tolerance, XP, and awards stay on the server. Retrying the same attempt cannot award twice.

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