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Questions and Answers
What is the primary mechanism of heat transfer in a metal rod?
What is the primary mechanism of heat transfer in a metal rod?
- Conduction (correct)
- Insulation
- Radiation
- Convection
Why are metals considered good conductors of heat?
Why are metals considered good conductors of heat?
- Due to their high density
- Due to their low thermal conductivity
- Due to the presence of free-moving electrons (correct)
- Due to their high thermal expansion
What happens to the density of water molecules when heated?
What happens to the density of water molecules when heated?
- It decreases (correct)
- It becomes zero
- It increases
- It remains the same
What is the primary mechanism of heat transfer in a pot of water?
What is the primary mechanism of heat transfer in a pot of water?
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Why are radiators effective in heating houses?
Why are radiators effective in heating houses?
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What is the global conveyor belt characterized by?
What is the global conveyor belt characterized by?
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How does heat transfer occur through radiation?
How does heat transfer occur through radiation?
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Why is it possible for heat from the sun to reach the planet?
Why is it possible for heat from the sun to reach the planet?
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What is characteristic of good insulators?
What is characteristic of good insulators?
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What is the primary reason why a wooden stick is considered a good insulator?
What is the primary reason why a wooden stick is considered a good insulator?
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