Question

# A plastic ruler and a metallic ruler are in the same room. The metallic ruler ‘feels’ colder when touched. What is the reason for this? A. Plastic has a lower specific heat capacity than metal. B. Plastic has a higher specific heat capacity than metal. C. Plastic is a better conductor of heat than metal D. Plastic is a worse conductor of heat than metal.

Solution

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The reason that makes the metallic ruler ‘feels’ colder when touched is that metal is a better conductor of heat than plastic, meaning that you will be losing thermal energy to the metal faster than plastic.

The answer is $\textbf{D}$

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