Practice Surface Tension (1.3.3) - Lecture - 13 - Fluid Mechanics

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8 questions

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6 sample questions

Question 1.
What is surface tension?
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Think of why raindrops are round.
Question 2.
Name a common example of surface tension.
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Consider creatures that can walk on liquid.
3Question 3.
What is surface tension?
- A force on the liquid surface
- The weight of liquid
- A chemical property
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Remember the elastic skin analogy.
4Question 4.
True or False: Capillarity occurs in all types of tubes equally.
- True
- False
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Think about tube diameter.
Question 5.
Calculate the height of a liquid column that rises in a capillary tube with a diameter of 2mm and surface tension of 0.072 N/m.
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Convert units carefully, and use appropriate density.
Question 6.
Discuss how varying the contact angle affects the capillary rise in a tube.
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Consider the relationship between adhesive and cohesive forces.

4 more questions in this section. Enroll free to practise them all.