Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is shear stress?
💡 Hint: Think about forces acting parallel to a surface.
Question 2
Easy
How is viscosity defined?
💡 Hint: Consider how fluids behave when they flow.
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 formula for shear stress?
- \\( \\tau = \\frac{F}{A} \\)
- \\( \\tau = F \\times A \\)
- \\( \\tau = \\frac{A}{F} \\)
💡 Hint: Think of the relationship between force and area.
Question 2
True or False: In liquids, viscosity decreases with an increase in temperature.
- True
- False
💡 Hint: Consider how heat affects fluid flow.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A fluid with a viscosity of 0.75 Pa.s flows between two plates 5 cm apart. If the velocity gradient is 3 s⁻¹, calculate the shear stress and discuss its implications in fluid dynamics.
💡 Hint: Use the shear stress equation we discussed.
Question 2
Calculate shear stress for a fluid where the viscosity is decreased from 0.7 Pa.s to 0.3 Pa.s while maintaining the same velocity gradient. What does this reveal about fluid behavior?
💡 Hint: Reflect on the relationship between viscosity and shear stress.
Challenge and get performance evaluation