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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is surface tension?
💡 Hint: Think about how water forms drops.
Question 2
Easy
Explain pressure difference in terms of surface tension.
💡 Hint: Use the equation ΔP = 2σ/R.
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 calculating pressure difference due to surface tension?
- ΔP = σ/R
- ΔP = 2σ/R
- ΔP = σ/2R
💡 Hint: Remember the specific dependency of pressure difference on surface tension.
Question 2
True or False: A larger droplet exerts a greater pressure difference due to surface tension.
- True
- False
💡 Hint: Reflect on the formula ΔP = 2σ/R.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the force required to separate two plates separated by a liquid droplet of 0.15 mm radius if the surface tension is 0.075 N/m and the area of contact is 0.02 m².
💡 Hint: Utilize the pressure difference formula appropriately for accurate results.
Question 2
Discuss how varying the distance between the two plates affects the calculations of the force required to separate them, with specific examples.
💡 Hint: Reflect on the original principles while discussing changes in distance.
Challenge and get performance evaluation