Question

Thermal conductors _____.
A. have high conductivity
B. are often metals
C. have low conductivity
D. have lots of air pockets
E. have low latent heat

Answer 1

Can be more than one.

Answer 2

http://chemistry.about.com/od/materials/fl/Examples-of-Conductors-and-Insulators.htm


"Heat can only travel from a hot material to a cold material. It does not travel in the opposite direction. Materials that do not pass heat easily are known as thermal insulators. Insulators include plastic, wood, rubber and glass. Often, objects that are used to transfer heat are made of metal but have an insulator as a handle. A saucepan is an example of an object that is both a conductor and an insulator. The metal part of the pan is a conductor that allows heat to quickly pass from the stove to the food inside the pan. The metal part of the pan, however, it is too hot to touch without receiving burns. That is why most handles are made of insulators, such as plastic or wood.

Potholders and oven gloves also function as insulators. Some materials, like glass, operate as insulators at room temperature but as conductors when heated to high temperatures. Gases like air also become more conductive when heated to higher temperatures. Metals, when heated, do not conduct heat as well as they do when cooled. Many conductive materials operate better at very low temperatures."

- http://www.ask.com/science/materials-good-conductors-heat-a636ee107d4deec4

These sources can help you, (not my answers, they belong to their respectful owners).

Answer 3

Thermal conductors _____. A. have high conductivity B. are often metals C. have low conductivity D. have lots of air pockets E. have low latent heat

Answer 4

They are normally metals, have lots of air pockets, and high conductivity..

I would go with A if this isn't a multi question since conductors have HIGH conductivity, insulators have low! @Schoolninja7