Loading…
Loading…
GCSE Design and Technology · key term
The ability of a material to resist scratching, indentation and wear at its surface.
Used by AQA
Paper 1
Revise: Natural and manufactured timbersStrength is its ability to withstand forces without failing; hardness concerns resistance to surface damage such as scratching and indentation. Toughness means resistance to impact, while flexibility allows a material to bend. A tool handle benefits from toughness, whereas flooring needs a hard-wearing surface.
The ability to resist indentation, scratching and wear.
Distinguish strength, hardness and toughness: resisting a load, resisting surface damage and resisting impact are different properties.
Distinguish hardness from toughness: resisting scratches or wear is not the same as resisting impact without breaking.
Do not confuse hardness with toughness: a hard polymer can still be brittle.
Create a free account to read GCSE Design and Technology revision notes for your exam board and track your progress.
Resistance to scratching, indentation and surface wear.
The ability of a material to resist scratching, abrasive wear and indentation.
Resistance to scratching, cutting or indentation.