Copper:
* Conducts electricity: Copper is a highly conductive metal. It readily allows the flow of electrical current, making it unsuitable as an insulator.
* Thermal conductor: Copper is also a good conductor of heat. It transfers heat energy efficiently, making it a poor choice for thermal insulation.
* Uses: Copper is primarily used in electrical wiring, plumbing, and other applications where its conductivity is beneficial.
Polystyrene:
* Insulator: Polystyrene is a non-conductive plastic material. It resists the flow of electrical current and heat, making it an excellent insulator.
* Thermal insulation: Polystyrene is widely used for thermal insulation in buildings, refrigerators, and other applications. It traps air, which is a poor conductor of heat, reducing heat transfer.
* Uses: Polystyrene is used in packaging, insulation, disposable cups, and other applications where its insulating properties are valuable.
In summary:
* Copper is a conductor of electricity and heat, making it unsuitable for insulation.
* Polystyrene is an insulator of both electricity and heat, making it suitable for a wide range of insulation applications.
Key takeaway: Copper is the opposite of an insulator, while polystyrene is a highly effective insulating material.
