Understanding Thermal Conductivity

What is the primary characteristic of thermal conductivity?

• The ability to absorb light

• The ability to transfer heat

• The ability to conduct electricity

• The ability to reflect sound

Why do metals generally have higher thermal conductivity than non-metals?

• Because they are more colorful

• Because they have a sea of delocalized electrons

• Because they are denser

• Because they are more flexible

What happens when a plastic rod is used instead of a metallic rod to connect a hot and a cold object?

• No heat is transferred

• Less heat is transferred

• More heat is transferred

• The same amount of heat is transferred

Why is the handle of a kettle often made of plastic?

• Because plastic conducts less heat

• Because plastic is more aesthetically pleasing

• Because plastic is more durable

• Because plastic is cheaper

Which material has a thermal conductivity of 0 Watt per meter Kelvin?

• Copper

• Iron

• Styrofoam

• Vacuum