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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 the extra energy at the surface of a liquid.
Question 2
Easy
What effect does surface tension have on liquid droplets?
💡 Hint: Consider why a balloon stays round.
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 causes surface tension in liquids?
- A. Increased temperature
- B. Molecular attraction at the surface
- C. Atmospheric pressure
💡 Hint: Think about how a water droplet holds its shape.
Question 2
True or False: Surface tension is only significant in non-living systems.
- True
- False
💡 Hint: Consider examples from both living and non-living systems.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a drop of water has a radius of 2 mm, calculate the excess pressure inside the droplet.
💡 Hint: Use the formula provided for pressure differences.
Question 2
Consider a capillary tube with a radius of 1 mm in which water rises to a height of 10 cm. Calculate the surface tension of the water.
💡 Hint: Consider the variables involved in the system to find surface tension.
Challenge and get performance evaluation