Properties of Materials Flashcards
What is elasticity
-Krystian S
The ability of a material to absorb force, bend and flex in different directions, returning to its original shape and size when loads are removed.
What is plasticity
-Krystian S
The ability of a material to be changed in shape by external blows or pressure, without cracking or breaking. Some materials are more plastic when heated
What is ductility
-Krystian S
The ability of a material to undergo cold plastic deformation by bending, twisting or stretching along its length (stretching/drawing) e.g Copper wire
What is compressive Strength
-Krystian S
The ability of a material to resist compressive (pushing) forces. e.g. Concrete.
What is malleability
-Krystian S
The ability of a material to be reshaped in all directions under pressure (e.g. hammering, pressing or rolling) without rupturing or cracking.
What is a property (in general)?
-Oscar Lawson
Characteristics possessed by a material making it better or worse suited to being used.
What defines a physical property?
-Oscar Lawson
Properties that are not associated with a force
What are examples of physical properties?
-Oscar Lawson
Thermal properties, density, fusibility, resistance to corrosion/electricity and ability to reflect light
What defines a mechanical property?
-Oscar Lawson
How a material behaves when subjected to a force
-Oscar Lawson
Give an example of a mechanical property
-Oscar Lawson
Strength, elasticity, hardness, toughness, compressive strength, tensile strength, malleability, ductility and plasticity
Out of Fusibility and Ductility, which is mechanical and which is physical ?
- Humphrey Marsh
Fusibility is Physical.
Ductility is Mechanical
Name two applications of Density:
- Humphrey Marsh
Fishing Weights and Buoyancy aids.
Which properties are not associated with a force?
- Humphrey Marsh
Physical Properties
Give the definition of ‘Strength’:
- Humphrey Marsh
The ability of a material to stand up to forces being applied without it bending, breaking, shattering or deforming in any way.
The best choice of material depends on what 4 factors?
- Humphrey Marsh
Its properties.
Its aesthetic qualities.
The cost of both material and production.
Its availability.
Are all Malleable materials ductile?
Caspar Tyser
Not all Malleable materials are ductile, but all ductile materials are malleable.
What is an example of something that has Compressive Strength?
Caspar Tyser
Concrete
Is Fiberglass a composite Material?
Caspar Tyer
Yes. (GRP is combined of glass strands with polyester resin.)
What is an example of something that has Tensile Strength?
Caspar Tyser
A steel Cable
Is Fusibility a Physical or Mechanical Property?
Caspar Tyser
It is a Physical property.
What is an applications of gold?
-Ssnehnil G
Jewellery
What is an application of plastics (generally)?
-Ssnehnil G
Window frames
What is an application of Tin?
-Ssnehnil G
Solder
What is an application of copper?
-Ssnehnil G
Electrical cables
What are applications of mild steel?
-Ssnehnil G
Nails
Screws
Car body panels
What’s the definition of density?
Ed H
The mass per unit volume kg/m
What materials are durable?
Ed H
Plastics generally
Gold
Toughness definition?
Ed H
A characteristic of a material that does not break or shatter when receiving a blow or sudden shock
What is Compressive strength?
Ed H
The ability to resist compressive strength?
Electrical resistance?
Ed H
The ability to let current flow through a material
What is tensile strength?
IVAN. k2
The ability of a material to withstand a pulling or ‘tensile’ force.
what is ductility
IVAN K2
The ability of a material to undergo cold plastic deformation by bending, twisting or stretching.
What is toughness?
IVAN K
A material that does not break or shatter when receiving a blow or sudden shock.
example of a tough material
IVAN K
Leather strap
What is hardness?
IVAN K
The ability to resist scratching, wear and tear. Like high speed drills
Are physical properties associated with a force?
-Lucas M
No
Is electrical resistance a physical property?
-Lucas M
Yes
What do mechanical properties refer to?
-Lucas M
The behaviour of materials when subjected to a force.
Is elasticity a mechanical or physical property?
-Lucas M
Mechanical
What type of property is toughness?
-Lucas M
Mechanical
Elasticity is …
-Alfie Turner
mechanical
is density a physical property
-Alfie Turner
yes
is thermal properties a mechanical property
-Alfie Turner
no
is hardness the ability to resit scratching
-Alfie Turner
yes
density …
-Alfie Turner
the mass per unit volume kg/m3
What is a composite material
Oli Shaw
A material which has been created by combining 2 or more different materials
What is the advantage of using a composite material
Oli Shaw
They can be modified for the purpose of what you want them for.
How can you make a composite material more beneficial
Oli Shaw
Increasing any characteristics, strength for example.
What does GPR stand for
Oli Shaw
glass reinforced polyester
What is used to make GPR
Oli Shaw
glass strands with polyester resin:
Is Reinforced Concrete a Composite Material?
-Oscar Mabon
Yes
Is GRP (Glass Reinforced Polyester) a Composite Material?
-Oscar Mabon
Yes
Is Corrosion Resistance a Physical Property of a material?
-Oscar Mabon
Yes
Is Hardness a Physical property of a material?
-Oscar Mabon
No it is a Mechanical property
Is Malleability a Mechanical Property of a Material?
-Oscar Mabon
Yes
What are the two universal properties of metal?
Torsai K
Strength, and elasticity
How are materials chosen, and on which factors?
Torsai K
Its properties, its aesthetic qualities, cost of both material and production, and its availability.
What are the physical properties of materials?
Torsai K
Electrical resistance, ability to reflect light, and the ability to conduct or store heat.
What is tensile strength?
Torsai K
Tensile strength resists stretching by the pull forces and is an essential strength for cables, chains, and ropes.
What is compressive strength?
Torsai K
Compressive strength withstands push forces which try to crush or shorten.
