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JAMB Physics 2007 Question 32

Question 32

Heat Transfer

The blade of a hoe feels colder to touch in the morning than the wooden handle because the

  1. A.handle contains stored energy in form of heat
  2. B.blade is placed at a lower temperature than the handle
  3. C.handle is a better conductor of heat than the blade
  4. D.blade is a better conductor of heat than the handle
Show the answer and explanation

Answer: D (blade is a better conductor of heat than the handle)

Explanation

Both are at the same temperature, but the metal blade conducts heat away from your hand much faster than wood, so it feels colder.