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3 cards from this section. Quick, good the night before a test.
What is viscosity?
Think about how thick a fluid is.
How does temperature affect liquid viscosity?
How does heat impact flow speed?
What does viscosity measure?
It relates to how thick or thin a fluid is.
True or False: Viscosity increases for liquids when temperature increases.
Consider how heat affects movement between molecules.
A sphere of radius 2 mm is falling through oil with a viscosity of 0.1 Pa·s. Calculate the terminal velocity reached by the sphere if the density of the sphere is 2,000 kg/m³ and the density of oil is 800 kg/m³. Assume gravitational acceleration is 9.81 m/s².
Ensure to convert radius into meters.
An engineer needs to design a fluid transport system for a high-viscosity liquid. Given that the liquid's viscosity is 10 Pa·s and it will be transported through pipes of diameter 0.05 m, calculate the pressure drop over a length of 100 m if the flow rate should be 0.01 m³/s.
Watch out for units and double check the formula!
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