Air
Non-metal
Any metal is a terrible insulator of heat. Wallpaper would be much better.
Fiberglass is a better insulator than air because it has the ability to trap air pockets within its fibers, which reduces heat transfer. This makes fiberglass a more effective thermal insulator compared to the air itself.
Yes, polystyrene is a better insulator than metal. Polystyrene has a lower thermal conductivity, which means it is more effective at preventing the transfer of heat compared to metal. Metal is a good conductor of heat, so it allows heat to pass through easily.
Glass has a higher conductivity than thin plastic but,it is still lower than metal so metal may be a better conductor
Air is the best thermal insulator among the options provided. Air has low thermal conductivity, meaning it is effective at trapping heat and preventing its transfer. Stone, water, and metal have higher thermal conductivities compared to air.
Plastic is generally a better insulator than metal because it has higher electrical resistance and lower thermal conductivity. This property makes plastic a good choice for applications where electrical insulation or heat retention is needed. Metal, on the other hand, is a better conductor of heat and electricity.
it is good heat insulator, as it has air in it. as air is a good insulator of heat, the sponge, which has lots of pockets of air also becomes a good insulator
Fiberglass batting is a more effective insulator than air because it traps pockets of air within its structure, preventing heat transfer. Air alone is not a good insulator as it allows for convection and conduction to occur easily.
Air is the best insulator among the options listed. It has low thermal conductivity, meaning it does not easily transfer heat. Thermocol, cotton, and aluminium are not as effective as insulators compared to air.
Is air a thermal insulator or thermal conductor? Read more:Is_air_a_thermal_insulator_or_thermal_conductor
No, fiberglass is a better insulator than air. Fiberglass has a higher R-value, which measures its resistance to heat flow, compared to air. Fiberglass is commonly used as insulation in buildings to improve energy efficiency.