1.2-1.4: Woods, Metals & Plastics Flashcards
What is Density?
Is the amount of matter (mass) in an object per unit of space occupied (volume).
What is electrical conductivity?
Is the movement of electricity through a piece of material i.e. how conductive it is (e.g. gold, silver, copper).
What is thermal conductivity?
Is the movement of heat through a material.
What is tensile strength?
A material with high tensile strength properties has the ability to resist pull forces.
What is compressive strength?
Is material’s ability to withstand push forces that try to crush or shorten it.
What is bending strength?
Is the force applied to a material in an attempt to bend it.
What is shear force?
Is the force that subjects materials to a sliding action across their surfaces.
What is torsional force?
Force is applied to a material to try to twist it.
What is Elasticity?
The ability of a material to flex, bend and be deformed and reformed to its original shape once the forces are removed.
What is Plasticity?
The ability of an object or material to permanently change shapes as a result of forces applied to it, without cracking or breaking.
What is Ductility?
Is the ability of a material to be drawn to be longer and thinner, e.g. into wire.
What is Malleability?
Is the degree to which materials can be permanently deformed in all directions as a compressive force caused by an impact such as hammering, pressing, or rolling.
What is Toughness?
Is the ability to withstand sudden shocks or blows.
What is Hardness?
The hardness of a material describes the ability to resist indentation. Scratch-resistant.
What is Durability?
The more durable material is, the more capable it is of withstanding wear and tear and deterioration as a result of weathering.
