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Why are materials such as plastic foam feathers and fur poor insulators of heat?
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∙ 13y ago
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∙ 13y ago
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What are 3 examples of insulators?
examples plastic Rubber oil
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.
What are 5 electrical conductors and 5 electrical insulators?
Enorder for materials to conduct electricity they need to have free electrons which carry the current. Materials which can do this include metals, water, Ionic salts when in there molten or aqueous states. Wood, plastic, gases and covalent compounds do not have free electrons and therefore do do conduct.
What are some heat insulators?
Some heat insulators are fiberglass, polyurethane foam, and polystyrene. Two other thermal insulators used as insulating materials in building construction are mineral wool and cellular glass.
Why are foam and air good insulators?
it is
What is the freezing point of a pillow?
For feathers, foam plastic, cotton ... all well above the boiling point for water.
What is the difference between rigid polystyrene plastic and expanded polystyrene?
Rigid polystyrene plastic is a closed cell of light weight, rigid & foam plastic that is derived from petroleum and natural gas by products. It is hard plastic in one word. This is used to make plastic containers and insulators. On the other hand, expanded polystyrene is derived by expanding the regular foam molecules by 50 times their volume using a blowing agent (pentane gas). This is used to make packaging materials. Source: http://www.polystyrene.uk.com/
What is a foam cup conductors or insulators?
Insulator
Is foam a kind of plastic?
Foam is NOT plastic!
What materials would insulate thermal energy?
plastic,rubber,foam,anything that is thick and is the oppisite of a conductor
What types of materials does heat not travel through?
Heat can and does travel through all matter. It's just that some materials carry it much slower than others, and these are called insulators. The best ones being foam type materials.
A good electrical insulator?
Two good Insulators are foam and styrafoam
