Worksheets1.1 Materials and applications
Total questions: 52
Worksheet time: 27mins
Mechanical properties are associated with....
how a material reacts to an external force
the actual make-up or structure of the material
the ability to being crushed or shortened
the ability to absorb impact force without fracture
Physical properties are associated with...
the actual make-up or structure of the material
how a material reacts to an external force
the ability to resist sliding forces on a parallel plane
the ability to withstand twisting forces
Malleability is the ability of a material to
withstand impact.
resist indentation, abrasion and wear.
be plastictally deformed by a compressive force.
be plastically deformed by a tensile force.
The drill would need to have what property?
Malleability
Ductility
Conductivity
Hardness
Hardness is the ability of a material to
resist indentation, abrasion and wear.
carry an electrical charge.
resist impact.
to be drawn into a wire.
Toughness is
the ability of a material to resist indentation, abrasion and wear.
the ability of a material to withstand impact.
carry an electrical charge.
the ability to be draw into a wire.
Ductility is
when a material can be plastically deformed into shape using a compresive force.
the ability of a material to resist fracture from a tensile force
when a material can be plastically deformed into shape using a tensile force.
the ability of a material to resist fracture from a compresive force.
To draw a material into a wire the material would need to possess which mechanical property?
Elasticity
Malleability
Tenacity
Ductility
Which of the following is not a material property?
Malleability
Strength to weight ratio
Magnetism
Cost
What do materials undergoing plastic deformation do?
Change their shape when under a load, but return to their original shape when the load is removed.
Change their shape when under a load, but they remain permanently deformed when the load is removed.
Break or crumble rather than change their shape under a load.
Can easily be shaped by hammering or rolling, and they keep their new shape. Some materials can be more easily shaped when heated.
Tensile strength is
The ability of a material to resist a pulling, stretching force.
Required in a window
The ability of a material to resist a squashing force
The ability of a material to be drawn into a wire
The rope between the tug and the ship would need to have good
Ductility
Hardness
Tensile strength
Malleability
Which material has the best stregth to weight ratio?
Steel
Aluminium
Titanium
Opaque is where:
it prevents light travelling through the material
it allows light through but diffuses the light
allows light to pass through easily
Thermal expansion:
the increase in material volume in response to a heat input
prevents the transfer of heat through the material
allows the transfer of heat energy through the material
Density is:
the mass of the material in a standard volume of space
the weight of a material
whether an item will sink or float in a volume of water
how strength to weight ratio works
In the picture the can has been distorted using what kind of force?
compression
tension
torsion
bending
The diagram shows what kind of deforming?
compression
shear
torsion
bending
Fusibility is used when casting metals. This is the process of:
converting a solid to a liquid or molten state usually by heat
converting a solid into only a molten state
using heat to change the properties of the material
Which of the following is a non-ferrous metal?
copper
steel
iron
If a metal is corrosion-resistant, it means that it ...
oxidizes quickly
oxidizes slowly
stops electrical flow
The conductivity of a metal is its ability to ...
transport heat and electricity
be machined easily
withstand heavy preasure
An alloy is ...
one of the basic elements (Al) in the Periodic Table
a metal that consists of two or more metals or metalloids
a construction made up of two or more components welded together
Metals, such as steel, contain Iron and therefore need to be protected from corrosion caused by exposure to air and water. What category of metals is this?
Ferrous Metals
Non-Ferrous metals
Metals which do not contain Iron, are more resistant to corrosion and require less maintenance. Which category of metals is this?
Ferrous metals
non-ferrous metals
Which category of metals require protection using a variety of finishes, including special oil based paints, electroplating processes such as galvanising, and plastic dip coating.
Ferrous Metals
Non Ferrous Metals
Which of the following are Reasons for using an alloy? (choose 3)
You may need a material with improved Strength-to-weight ration
You may need a material with improved Appearance.
You may need a material with improved Strength in tension, compression or torsion.
You may need a material with improved Corrosion resistance
You may need a material with improved Safety
Select the three materials that are non-ferrous
aluminium
titanium
tin
cast iron
Select three materials that are ferrous metals
low carbon steel
cast iron
medium carbon steel
pewter
zinc
Select three materials that are alloys
bronze
duralumin
die steel
zinc
tin
Tick the 2 categories of wood.
manufactured
natural
chemically made
Name the type of tree that has needles and is generally triangular in shape .
Deciduous
Root
Coniferous
Grass
Which woods are more likely to have knots in?
Softwood
Hardwood
Select two soft wood materials
douglas fir
redwood
aeroply
beech
Select two of the following: manufactured boards
marine plywood
aeroply
birch
larch
Which of the following are hardwoods (select two)
mahogany
ash
cedar
MDF
True or false: hardwoods come from broad-leafed (deciduous) trees
True
False
True or false: Manufactured boards are not available in larger sizes than solid wood
True
False
Select the three correct categories of plastics
Thermoplastic
Thermosetting polymer
Elastomer
Monomer
Polymer
Which two materials are thermosetting polymers?
Urea formaldehyde
epoxy resin
Silicone
high impact polystyrene
Which is the correct definition of a thermoplastic?
A material that can be repeatedly heated and reshaped which can then be recycled
a material when heated undergoes a chemical change where molecules form rigid cross links, these cannot be reheated or reshaped
a material which at room temperature can be deformed under pressure and then when released will return to it's original shape
Which two of these are thermoplastics?
Low density polyethylene
Polyester resin
neoprene
nylon
Which two of these materials are elastomers?
natural rubber
polybutadiene
polyvinyl chloride
low density polyethylene
GRP is a composite of which area:
fibre based
particle based
sheet based
glulam (engineered wood) is a composite of which area:
fibre based
particle based
sheet based
concrete is a composite of which area:
fibre based
particle based
sheet based
The definition of a smart material is:
a material whose properties change in response to an input or change in the environment e.g. electricity
a materials whose property changes in response to an output or input e.g. temperature
a material whose property does not change until humans interact and change the properties
True or false: modern materials are not 'smart materials' because they do not react to external change.
True
False
Which of these is NOT a modern material?
Kevlar
polymorph
pewter
precious metal clay
high density modelling foam
