O-LevelPhysicsThermal Physics5054/12 · May/June 2023 · Q171 Mark
Which statement about copper explains why it is a better thermal conductor than glass?
AAtomic vibration is passed on to neighbouring copper atoms slowly.
BAtoms move through the copper and pass on kinetic energy.
CThere are density changes within the copper.
DThere are free electrons in the copper.
✓ Correct answer
D: There are free electrons in the copper.
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