4.6.2 - Applications of Surface Tension
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Practice Questions
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What is surface tension?
💡 Hint: Think about why raindrops form shapes.
How does temperature affect surface tension?
💡 Hint: Recall that heat changes molecular motion.
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Interactive Quizzes
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What causes surface tension in a liquid?
💡 Hint: Think about the structure of liquid surfaces.
True or False: Surface tension increases with rising temperature.
💡 Hint: Recall how heating affects molecule interactions.
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Challenge Problems
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Calculate the surface tension exerted by water if a droplet has a radius of 0.5 cm and creates a pressure difference of 0.1 atmospheres on the surface.
💡 Hint: Remember the pressure relationship for spherical droplets.
Discuss the implications of changing surface tension in detergents and its effect on cleaning efficacy.
💡 Hint: Consider how dish soap behaves compared to plain water.
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