Isle of Man Steam Packet Ferries provide freight, passenger and vehicle services between the port of Douglas and four ports in England, Northern and Southern Ireland.
Rating Newest Oldest. Best Answer: Metals are good conductors because they have unfilled space in the valence energy band. Also,metals are soft, has a low melting point and happens to be reactive taht's why they can easily conduct heat/electricity easily.
Most metals expand when heated and contract when cooled. This is often explained using the kinetic molecular theory; when you add heat, it gives the metal atoms more kinetic energy so that they can move farther apart. As it happens, antimony and bismuth, and some of their alloys, do contract on heating and expand on cooling, but this is the exception, not the rule. Metals expand on heating and contract on cooling. This happens because each molecule can vibrate more when it's given (heat) energy. You are right, heat causes metal to expand, cold contracts it. It expands on heating and contracts on cooling.