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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define surface tension.
💡 Hint: Think about why insects can walk on water.
Question 2
Easy
What is capillarity?
💡 Hint: Consider how liquid moves in a thin 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 causes water to rise in a narrow tube?
- Gravity
- Surface Tension
- Pressure Difference
💡 Hint: Recall the straw example.
Question 2
True or False: Surface tension affects the ability of insects to walk on water.
- True
- False
💡 Hint: Think of the critters you see on water's surface.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A glass tube with a diameter of 5 mm is submerged in water. Calculate the height of the water column that would rise, given the surface tension of water is 0.072 N/m and the contact angle is 0 degrees.
💡 Hint: Make sure you use the correct units for density and gravitational acceleration.
Question 2
Explain how capillarity affects the way plants obtain water, and why it is vital for their survival.
💡 Hint: Think about how tall trees draw water.
Challenge and get performance evaluation