Cuz of insufficient presense of electrons in the external shell of such material's atom
No, shiny surfaces are not good insulators. Shiny surfaces are reflective and do not support the absorption and retention of heat, which is a characteristic of good insulators. Good insulators are materials with low thermal conductivity that trap heat effectively.
Marbles are not good insulators because they are made of dense material and can conduct heat easily. Insulators are materials that do not allow heat to flow through them easily, whereas marbles are more likely to transfer heat.
Good insulators contain materials with high resistance to the flow of heat or electricity, such as rubber, plastic, glass, wood, and ceramic. These materials have tightly packed molecules that do not allow heat or electricity to pass through easily, making them effective insulators.
Materials that do not allow heat to pass are insulators. (In real life, there are no perfect insulators, but if not much heat passes, then it is an insulator.)
Some other materials that are good insulators are wood, rubber, glass, and fiberglass. These materials have low thermal conductivity, preventing the transfer of heat.
No, insulators are not good conductors of heat. Insulators are materials that do not easily allow heat to pass through them due to their high resistance to thermal conductivity. They are used to prevent the transfer of heat, maintaining a barrier between hot and cold environments.
Sound insulators are similar to heat insulators in that they both aim to reduce the transfer of energy, but they work in different ways. Sound insulators absorb and dampen sound vibrations, while heat insulators reduce the transfer of heat through conduction, convection, or radiation. Materials that are good sound insulators may not necessarily be good heat insulators and vice versa.
Materials that are good insulators of heat include wood, fiberglass, polystyrene foam, and aerogel. These materials trap air and prevent the transfer of heat due to their low thermal conductivity. Additionally, materials like wool and cotton can also act as good insulators due to their ability to trap air and prevent heat loss.
Popsicle sticks are not effective insulators because they are poor at reducing heat transfer. Insulators are materials that prevent the flow of heat, and popsicle sticks do not provide a significant barrier to heat transfer due to their low thermal resistance. Materials like foam or fiberglass are better insulators than popsicle sticks.
Three good insulators of heat are, maybe plastic, wood and glass! That's all I can think of right now but plastic and wood are very good insulators (etc. used of saucepan handles)
It really depends on the situation. But in general terms, you use special materials as heat insulators. You can't avoid heat from flowing altogether, but you can reduce it considerably by using good insulators.
Materials that are good for keeping things warm are often referred to as "insulators." Common examples include wool, down feathers, fleece, and certain synthetic fabrics like polyester. Additionally, materials such as foam, fiberglass, and certain types of plastics are also effective insulators in various applications. These materials work by reducing heat transfer, keeping warmth contained.