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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for linear expansion?
💡 Hint: Think about what each symbol in the formula represents.
Question 2
Easy
If a solid's temperature increases, what happens to its length?
💡 Hint: Consider how heat affects materials.
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 does ΔL represent in the formula ΔL = αL₀ΔT?
💡 Hint: Think about the effect of temperature on a solid.
Question 2
True or False: Metals typically have a lower coefficient of linear expansion than plastics.
💡 Hint: Consider how materials respond to heat.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A copper wire of length 20 m is heated from 30°C to 100°C. The coefficient of linear expansion of copper is 16 × 10^-6 °C⁻¹. Calculate the new length of the wire.
💡 Hint: Don't forget to add the change in length to the original length.
Question 2
A 10 m aluminum bar expands by 0.015 m when heated to 200°C. If the original temperature was 25°C, calculate its coefficient of linear expansion.
💡 Hint: Use the expansion formula to isolate and solve for α.
Challenge and get performance evaluation