Question 20
Heat TransferWhen heat is applied to one end of a metal rod, the molecules at the other end soon begin to vibrate with greater amplitude than before because heat has been transferred by
- A.radiation
- B.convection
- C.conduction
- D.evaporation.
Show the answer and explanation
Answer: C (conduction)
Explanation
In a solid, heat passes from molecule to molecule by their vibrations (and by free electrons in metals): conduction.