On a cold day, a metal fence post feels colder to the touch than a tree. This sensation of different temperatures is explained by the fact that
A) the temperature of the tree is higher.
B) the specific heat capacity of the metal is higher.
C) the specific heat capacity of the wood in the tree is higher.
D) the thermal conductivity of the metal is higher.
E) the thermal conductivity of the wood in the tree is higher.

Question

Quizplus · Accepted Answer

The sensation of different temperatures when touching a metal fence post and a tree on a cold day is due to the difference in thermal conductivity between the two materials. Metals have a higher thermal conductivity than wood, which means that heat is transferred more easily through the metal, making it feel colder to the touch. The tree, on the other hand, has a lower thermal conductivity so it doesn't transfer heat as easily, making it feel warmer to the touch.

On a Cold Day, a Metal Fence Post Feels Colder