Why does a floor tile feel colder than carpet at the same temperature when touched?

• A. Tile has higher emissivity
• B. Tile has greater thermal conductivity
• C. Tile has higher reflectivity
• D. Tile has lower heat capacity

Answer: (B)

When you touch something, the sensation of cold or warmth comes from how fast heat moves between your skin and the object. Even if both surfaces are at the same temperature, the rate of heat transfer matters. A floor tile conducts heat away from your hand much more readily than carpet. This rapid heat flow from your skin into the tile makes your skin lose heat quickly, which your cold-sensitive receptors interpret as a cold sensation. Carpet, being a poor conductor with air gaps and fibers, slows that heat transfer, so your hand doesn’t cool as fast and it feels warmer by comparison. Emissivity or reflectivity affect infrared radiation, not the immediate feel of touch, and heat capacity influences how much an object’s temperature changes over time, but the quick cold feeling is driven mainly by higher thermal conductivity.