Physics for IGCSE & O level - The Earth In Space (Section 2 - No. 16)
Which statement best explains why copper is a better thermal conductor than glass?
In glass, the atoms vibrate more easily than in copper.
In glass, there are free protons that transfer the thermal energy.
In copper, the atoms are further apart than in glass.
In copper, there are free electrons that transfer the thermal energy.
Explanation
In copper, free electrons allow for better heat transfer.
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