Practice Surface Tension (9.6) - MECHANICAL PROPERTIES OF FLUIDS

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is surface tension?
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Think of how beads of water form on a surface.
Question 2.
How does surface tension affect shape of small water droplets?
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Remember the shape with the least surface area.
3Question 3.
What is surface tension?
- A measure of the internal pressure in a liquid
- A force that minimizes the surface area of a liquid
- The temperature at which a liquid boils
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Think about why water drops form shapes.
4Question 4.
True or False: The angle of contact affects whether a liquid will wet a surface.
- True
- False
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Consider how water behaves on different materials.
Question 5.
Calculate the pressure inside a soap bubble with radius 3 mm at room temperature if the surface tension of soap solution is 0.05 N/m.
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Review the pressure difference concept.
Question 6.
Discuss the implications of varying surface tensions in different liquid combinations, like oil and water.
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Think about why oil and water don't mix.

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