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

Practice Questions

Q1
Which of the following is an example of thermal expansion? (2021)
  1. A balloon inflating when heated
  2. Ice melting in water
  3. Water boiling
  4. A metal rod contracting in cold

Questions & Step-by-Step Solutions

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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