Which of the following is an example of thermal expansion? (2021)

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Question: Which of the following is an example of thermal expansion? (2021)

Options:

Correct Answer: A balloon inflating when heated

Exam Year: 2021

Solution:

A balloon inflating when heated is an example of thermal expansion, as the gas inside expands with increased temperature.

Which of the following is an example of thermal expansion? (2021)

Which of the following is an example of thermal expansion? (2021)

Step 1: Understand what thermal expansion means. It is when materials expand in size when they are heated.
Step 2: Think about what happens to gases when they get warmer. They move faster and take up more space.
Step 3: Consider a balloon. When you heat the air inside the balloon, the air expands.
Step 4: As the air expands, it pushes against the walls of the balloon, causing the balloon to inflate.
Step 5: Therefore, a balloon inflating when heated is a clear example of thermal expansion.

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