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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 rainwater beads on a smooth surface.
Question 2
Easy
Define capillarity.
💡 Hint: Consider how water rises in a straw.
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 surface tension?
- A force that holds molecules together
- The weight of a droplet
- A type of buoyancy
💡 Hint: Consider how water beads up instead of spreading out.
Question 2
True or False: Surface tension decreases with increasing temperature.
- True
- False
💡 Hint: Think about how heat affects the behavior of water.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A water droplet of radius 1 cm is split into 100 smaller droplets. Calculate the work done if the surface tension is 0.072 N/m.
💡 Hint: Consider the initial and final surface areas of the droplets.
Question 2
How would the height of liquid in a capillary tube change if the diameter of the tube is reduced by half?
💡 Hint: Think about the relationship between radius and capillary rise.
Challenge and get performance evaluation