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Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is area expansion?
💡 Hint: Think about what happens when materials are heated.
Question 2
Easy
What does the coefficient of area expansion indicate?
💡 Hint: Remember the definition of the coefficient in relation to temperature.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary consequence of thermal expansion in solids?
💡 Hint: Consider the effects of heating.
Question 2
True or False: Area expansion is characterized by the formula ΔA = 2αA0ΔT.
💡 Hint: Recall the formula we've discussed.
Solve and get performance evaluation
Push your limits with challenges.
Question 1
A circular metal disc with an original area of 5 m² is heated from 15°C to 90°C. The coefficient of area expansion is 1.1 × 10^−5 °C⁻¹. Calculate the change in area and the new area.
💡 Hint: Ensure to follow each step in the calculation carefully.
Question 2
Explain how area expansion can affect the surface of a roadway during hot weather, produce an example of structural failure.
💡 Hint: Think about how structures interact with temperature changes.
Challenge and get performance evaluation