Thermal sensation vs. temperature: Why does a metal pen cap feel colder than its plastic body at the same room temperature (15°C)? Explain the sensory reason though both parts are at 15°C in equilibrium. Choose the correct option.

Difficulty: Easy

• Metal contains less heat energy at the same temperature
• Metal is denser, hence feels colder
• Metal has much higher thermal conductivity and draws heat from your skin faster
• Plastic radiates more heat to the surroundings