9.6 - Conclusion
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Practice Questions
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What is thermal expansion?
💡 Hint: Think about how a balloon expands when heated.
Does water expand when heated? Yes or No?
💡 Hint: Remember the behavior of liquids.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What defines thermal expansion?
💡 Hint: Focus on how temperature affects physical properties.
True or False: Solids expand in two dimensions.
💡 Hint: Think of linear vs. area expansion.
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Challenge Problems
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A copper pipe is 4 m long at 20°C. What will be its length at 100°C? The coefficient of linear expansion for copper is 16×10⁻⁶ °C⁻¹.
💡 Hint: Remember to calculate the change in length from the original!
Evaluate how the design of rails should accommodate thermal expansion when temperatures vary from winter to summer.
💡 Hint: Consider how materials behave differently due to temperature.
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