it means that heat energy can not be able to pass through,these are used to cover the electric cables to avoid shocks. eg plastic,insulating tape
Fiberglass is a commonly used material that is a good insulator of heat and relatively inexpensive to purchase. It is effective at reducing heat transfer and is commonly found in insulation materials for buildings and homes.
The best insulator of heat is probably polystyrene foam or fiber glass.
The best heat insulator is a material with low thermal conductivity, such as aerogel, fiberglass, or polyurethane foam. These materials are effective at reducing heat transfer by minimizing the movement of heat energy through the material.
insulator
A insulator (a thermal insulator)
It depends on whether it's referring to heat or electricity. For heat, it means that it is good at preventing heat transfer from one area to another, for electricity it means it's highly resistant to electrical conductivity.
rubber
This material is a thermal insulator.
insulator is a object that is not a good conductorSo it keeps the heat in.
a insulator of electricity is a material that insulates, especialy a nonconuctor of sound,heat,or electricity.
Wood is considered to be an insulator of heat. This is because wood has a low thermal conductivity which means it does not easily allow heat to pass through it. This property makes wood a good material for insulation in buildings and other applications.
One material that conducts thermal energy poorly is Styrofoam. This material has a low thermal conductivity due to its high concentration of trapped air pockets, which hinders the transfer of heat. This property makes Styrofoam a good insulator for keeping things cool or warm.