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4 cards from this section. Quick, good the night before a test.
What is shear stress?
Think about how forces act on surfaces.
Define viscosity in simple terms.
Consider how jelly behaves in comparison to water.
What describes angular deformation in fluid mechanics?
Consider how a fluid changes shape under stress applied.
True or False: Viscosity decreases with increasing temperature in liquids.
Think about how heat affects the flow of a liquid.
A fluid between parallel plates experiences a velocity gradient of 5 m/s over a distance of 0.1 m. Calculate the shear stress if the viscosity of the fluid is 0.8 Pa.s.
Make sure to use the right units for viscosity and gradient!
Explain the difference in viscosity behavior when temperature is increased for water (liquid) and air (gas).
Think about how heat influences both types of fluids distinctly.
4 more questions in this section. Enroll free to practise them all.
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