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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is thermal expansion?
💡 Hint: Think about how heat influences materials.
Question 2
Easy
What does the coefficient of linear expansion (α) indicate?
💡 Hint: Consider its relationship to temperature change.
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 happens to the particles in a solid when it is heated?
- They contract
- They remain stationary
- They move more vigorously
💡 Hint: Consider the activity levels of particles with heat.
Question 2
True or False: The coefficient of linear expansion is the same for all materials.
- True
- False
💡 Hint: Think about why metals and plastics behave differently.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the final length of a steel rod (length 5.0 m, initial temperature 25°C) when heated to 75°C. The coefficient of linear expansion for steel is 1.1 × 10^-5 °C⁻¹.
💡 Hint: Remember to apply the linear expansion formula correctly.
Question 2
A wooden beam of original dimensions 4.0 m x 0.2 m x 0.15 m, expands uniformly when heated from 20°C to 80°C. Calculate the increase in volume if the coefficient of volumetric expansion is 3 × 10^-4 °C⁻¹.
💡 Hint: Track your calculations for each phase of expansion.
Challenge and get performance evaluation