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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define shear stress in your own words.
💡 Hint: Remember the relationship between force and area.
Question 2
Easy
What is terminal velocity?
💡 Hint: Think of falling objects reaching a steady 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 is the unit of shear stress?
- Pa
- N/m²
- kg/m·s²
💡 Hint: Think about how we define pressure.
Question 2
Terminal velocity occurs when:
- True
- False
💡 Hint: Remember the forces acting on a falling body.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A raindrop falls through air and reaches terminal velocity of 9 m/s. If the mass of the drop is 0.002 kg, calculate the drag force acting on it.
💡 Hint: Use the weight formula.
Question 2
A viscous fluid flows between two parallel plates with a 5 mm gap. If one plate moves at 0.1 m/s and shear stress is measured at 200 Pa, calculate the dynamic viscosity.
💡 Hint: Consider the height difference to derive du/dy.
Challenge and get performance evaluation