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Thermal insulators have?
are often metals.have high conductivity
What material is the worst conductor of heat?
the worst conductors of heat are wood, plastic, rubber, and cloth.
Is air an insulator of electricity?
Is air a thermal insulator or thermal conductor? Read more:Is_air_a_thermal_insulator_or_thermal_conductor
What substances are the best insulators?
Usually nonmetals. Rubber, plastic, wood, cloth, paper, Styrofoam, tinfoil (to reflect the heat.)The most common insulator for electricity is plastic.
Why would an orange float in water?
When the skin is intact on an orange, it will allow it to float because the rind has is filled with tiny pockets of air an is porous. If the peel is taken off, the orange will sink because it become dense.
How is cotton a thermal insulator?
Lots of air pockets among the threads.
What are the insulating qualities of snow?
very good, because there are lots of air pockets
What kinds of materials make good insulators?
There are a number of materials that make good thermal insulators. Blankets and pockets of air make good thermal insulators for example.
How are thermal insulators used to control the transfer of thermal energy?
Manufactures usually make building insulation from a fluffy material, such as fiberglass,that contains pockets of trapped air.
How are thermal insulator used to control the transfer of thermal energy?
Manufactures usually make building insulation from a fluffy material, such as fiberglass,that contains pockets of trapped air.
What does thermal conductors mean?
A thermal conductor allows heat to readily flow through itself. An example of a material with a low thermal conductivity would be air, and an example of a material with a high thermal conductivity would be steel.
Thermal insulators have?
are often metals.have high conductivity
Why does a rock with lots of tiny holes float?
because the air pockets hold enough air to cancel out the weight because water is heavier than air
Is air a bad conductor of heat?
Yes and no. There are much better heat conductors, and air has a very low thermal capacity and truly minimal conduction, but air is free (at least so far), air is light, and you can blow it fairly easily. Water is a far better thermal conductor, but it is much heavier, harder to pump, and even tiny leaks cause a big mess. If you need a closed system (such as because water is limited -- no handy river!) you end up having to get the heat from the water to the air in the end. Lots and lots of electronics use air as their coolant, look around you.
Is a sponge a good insulation?
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
What material is the worst conductor of heat?
the worst conductors of heat are wood, plastic, rubber, and cloth.
What is an object that does not conduct heat?
Anything with lots of air pockets within the material. Soft wood, layers of cardboard, styrofoam of course.
