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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is viscosity?
💡 Hint: Think about how thick a fluid is.
Question 2
Easy
How does temperature affect liquid viscosity?
💡 Hint: How does heat impact flow speed?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does viscosity measure?
- Flow speed
- Resistance to flow
- Pressure
💡 Hint: It relates to how thick or thin a fluid is.
Question 2
True or False: Viscosity increases for liquids when temperature increases.
- True
- False
💡 Hint: Consider how heat affects movement between molecules.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
💡 Hint: Ensure to convert radius into meters.
Question 2
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.
💡 Hint: Watch out for units and double check the formula!
Challenge and get performance evaluation