Insulator or conductor depending on the circumstances. Aluminum foil conducts heat, but it cuts off air flow and reduces evaporation of fluids. Aluminum foil reflects and thus minimizes radiation transmission. With foods it is more useful as an insulator. It also acts as an insulator on windows. But, aluminum is definitely a good heat conductor.
Insulator
No. Aluminum is a very good conductor of heat.
yes
Aluminum will conduct both electric current and heat, so it would be a bad insulator of either.
An insulator is a material that does not conduct electricity well. Out of the options given, glass and aluminum ladder are insulators, while copper and water are conductors of electricity.
Aluminum is a conductor of electricity. It has a relatively high conductivity compared to insulators like rubber or plastic.
If I had to choose the best insulator out of steel wool, aluminum foil, cotton and bubble wrap, I would choose the aluminum foil.
yes it is because it traps the coolness inside.
yes
No, cotton is not a better insulator than aluminum foil and tissue paper. Aluminum foil is a good insulator as it reflects heat, while tissue paper acts as a thermal barrier. Cotton, on the other hand, is not as effective of an insulator because it does not have the same reflective or thermal barrier properties.
stira foam is a better insulator because it will keep it warm