AQA A Level product Design (Technical principles)

Elasticity (m) - ansthe ability to be deformed and then return to the original shape when the force is removed Electrical conductor (p) - ansallows the flow of electrical current through the material. A good conductor gives very little resistance to the flow of change. An electrical property. electrical insulator (p) - ansdoes not allow the flow of electricity through the material An electrical property. Thermal conductor (p) - ansallows 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 A thermal property thermal insulator (p) - ansprevents the transfer of heat through the material. A thermal property Thermal expansion (p) - ansthe increase in material volume in response to the heat input. A thermal property. Opaque (p) - ansprevents light form travelling through A optical property. Translucent (p) - ansallows light through but diffuses the light so that objects appear blurred. Frosted glass is an example of it. an optical property Transparent (p) - ansallows light to pass through easily which means you can see clearly through the material An optical property Density (p) - ansthe mass of a material in a standard volume place Fusibility (p) - ansthe ability of the material to be fused or converted from a solid to a liquid or molten state, usually by heat. It is an essential property for a metal being cast