Which term describes the relative ability of a material to transfer heat?

Which term describes the relative ability of a material to transfer heat?

• A. Thermal conductivity
• B. Table gauge
• C. Synthetic diamond
• D. Tang

Answer: (A)

Thermal conductivity is the measure of how easily heat flows through a material, i.e., its relative ability to transfer heat. A higher value means heat moves through the substance more readily, making it a good conductor; a lower value means it resists heat flow, acting as an insulator. It’s quantified in watts per meter-kelvin (W/m·K). Metals like copper have high thermal conductivity, while plastics and wood have lower values. The other terms don’t describe heat-transfer capability: table gauge relates to sheet thickness, synthetic diamond is just a material, and Tang is unrelated to thermal properties.

Thermal conductivity is the measure of how easily heat flows through a material, i.e., its relative ability to transfer heat. A higher value means heat moves through the substance more readily, making it a good conductor; a lower value means it resists heat flow, acting as an insulator. It’s quantified in watts per meter-kelvin (W/m·K). Metals like copper have high thermal conductivity, while plastics and wood have lower values. The other terms don’t describe heat-transfer capability: table gauge relates to sheet thickness, synthetic diamond is just a material, and Tang is unrelated to thermal properties.