Lesson: Chapter 9 — Heat

9.4. Thermal expansion 1 of 5 Reset answers

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Question 1

Why does a heated iron ball no longer pass through the ring?

A It has become heavier B It has melted C It has expanded D The ring has expanded

The right answer is the one marked above.

It has expanded. Once it cools and contracts it passes through again.

Answer the question to continue.