key definitions Flashcards
(19 cards)
absorbency
ability of a material to attract or take in an element, usually liquid, light or heat
fusibility
the ability to be combined to another material through heat
thermal conductivity
the ability to retain heat and conduct heat
electrical conductivity
the ability to allow an electrical current to pass through it
density
the mass of material per unit of volume
hardness
the ability to withstand wear, abrasion, scratching or denting impact to its surface
malleability
the ability to be bent and shaped easily without breaking
strength
- the ability to withstand a force without breaking e.g pressure, tension
- materials may be strong in one force but weak in another
toughness
the ability to absorb energy through shock without shattering
ductility
the ability to be stretched out or drawn into a thin strand without breaking
elasticity
the ability to return to its original shape once stretched, bent or compressed
absorbency materials example
- papers, boards, natural fibres usually good absorbers of liquids
density example
metals
fusibility example
materials with low melting points e.g solder used to fuse other metals as it melts before the metals being joined melt
electrical conductivity example
metals good electrical conductors, plastics poor electrical conductors
thermal conductivity example
metals good thermal conductors, plastics poor thermal conductors
list the physical properties and definition
- relate to actual material
- absorbency
- density
- fusibility
- electrical conductivity
- thermal conductivity
list the working properties and definition
- relate to how a material response to external forces or conditions
- strength
- hardness
- toughness
- malleability
- ductility
- elasticity
hard example
diamond, tools that cut like files and drills
