Physics · May / June 2023 · Paper 11 · Question 17
5054Conduction
A cold solid is placed on top of a hot solid. Thermal energy is transferred from the hot solid to the cold one. What is the explanation for this?
- AA hot solid expands, so its particles will move further apart.
- BEnergy is transferred from one particle to the next.
- CHeat always rises.
- DMolecules are free to move randomly through the solids.
As printed in the paper
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Correct answer: B. Energy is transferred from one particle to the next.
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