Physical properties of materials

Question 1

Electrical conductor

Answer 1

Allows the flow of electrical current through the material. a good conductor gives very little resistance to the flow of charge

Question 2

Electrical insulator

Answer 2

Does not allow the flow of electricity through the material

Question 3

Thermal conductor

Answer 3

Allows the transfer of heat energy through the material. a material with high thermal conductivity allows the transfer of heat to occur quickly across the material

Question 4

Thermal insulator

Answer 4

Prevents the transfer of heat through the material

Question 5

Thermal expansion

Answer 5

The increase in material volume in response to a heat input

Question 6

Opaque

Answer 6

Prevents light from travelling through

Question 7

Translucent

Answer 7

Allows light through but diffuses the light so that objects appear blurred. frosted glass in an example of translucent material

Question 8

Transparent

Answer 8

Allows light to pass through easily which means you can see clearly through the material

Question 9

Density

Answer 9

The mass of the material in a standard volume of space

Question 10

Fusibility

Answer 10

The ability of the material to be fused or converted from a solid to a liquid or molten state, usually by heat. good fusibility is an essential property for a metal being cast

Question 11

Magnetism

Answer 11

The natural force between objects that causes the material to attract iron or steels

Question 12

Corrosion/degradation resistance

Answer 12

The ability of the material to withstand environmental attack and decay