4.2.2 - Newton’s Laws of Viscosity
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Practice Questions
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Define shear stress.
💡 Hint: Think about forces acting on surfaces.
What is viscosity?
💡 Hint: Consider how thick or thin a fluid is.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the correct equation for Newton's law of viscosity?
💡 Hint: Consider what relation stresses have with velocity in fluids.
True or False: Non-Newtonian fluids exhibit constant viscosity.
💡 Hint: Recall the examples of fluids we discussed.
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Challenge Problems
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If the dynamic viscosity of a given fluid is 0.015 Pa.s and the velocity gradient is 3 s^-1, what is the shear stress?
💡 Hint: Keep the equation for shear stress in mind.
Describe the flow behavior of a non-Newtonian fluid under varying shear rates and provide an example.
💡 Hint: Think about common kitchen items for examples.
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