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WorksheetsMetals - Theory for KS4
Total questions: 29
Worksheet time: 30secs
The order in which steel and copper are processed;
Crushing of ore, smelting, use of blast furnace, smelting
Mining, use of blast furnace, crushing of ore, smelting
Mining, smelting, crushing of ore, use of blast furnace
Mining, crushing of ore, use of blast furnace, smelting
Order of processing aluminium
Mining, electrolysis, crushing of ore, purifying bauxite into alumina,
Electrolysis, mining, crushing of ore, purifying bauxite into alumina.
Mining, crushing of ore, purifying bauxite into alumina, electrolysis.
Mining, purifying bauxite into alumina, crushing of ore, electrolysis.
Metals can be argued as 'environmentally friendly' because;
of the amount of energy needed to process, transport and manufacture them
Their ability to be recycled
Their expected life-expectancy
the way in which they are extracted from the Earth's crust
the length of time they remain in the environment after disposal
Metals need to be separated carefully before recycling because;
metals can react with each other dangerously
mixing metals speed up the process of oxidisation
only certain metals can be recycled
impurities will affect the metal's properties
Stock forms;
Are more expensive
Allow consumers to 'shop around'
Enable designers to keep the cost of products down
Enable manufactures to specialize, keeping costs down
Can create problems with handling and transportation
Stock forms of metals include;
Planks
Rod
Granules
Sheet
Angle
Metals can be argued as 'environmentally unfriendly' because;
of the amount of energy needed to process, transport and manufacture them
Their ability to be recycled
Their expected life-expectancy
the way in which they are extracted from the Earth's crust
the length of time they remain in the environment after disposal
Deburring metals;
Improve safety
Improve the way metal products feel
Improve the way metals look
Reduce the cost of metal products
oxidisation...
is a reaction between a metal and oxygen
always reduces the strength of the metal
is always unattractive
can cause problems with iron-based products
Surface finishes are applied to materials...
To make them cheaper to produce.
To improve a materials aesthetics.
To improve a materials functionality.
To improve the material's ability to be recycled.
Galvanising;
reduces the cost of the product
is a surface finish commonly applied to steel-based external products
Involves the use of zinc
makes the product stronger
Garden ladders are often made from aluminium because..
it is strong
it is lightweight
it is hard
it does not rust
it is a good electrical conductor
Surface finishes that are commonly used to prevent steel from rusting;
polishing
dip coating
oil bluing
galvanising
painting
Kitchen sinks are often made from stainless steel because...
it is lightweight
it is hard
it is a good electrical conductor
it is tough
it does not rust
Wiring is made from copper because...
it is strong
it is malleable
it is an excellent thermal conductor
it is hard
it is ductile
Fabrication processes;
milling
brazing
sand casting
bending jig
nut and bolt
Wasting processes;
milling
brazing
sand casting
bending jig
nut and bolt
Deforming processes;
milling
brazing
sand casting
bending jig
nut and bolt
Reforming/redistribution processes;
milling
brazing
sand casting
bending jig
nut and bolt
Manufacturing process;
Miller
centre lathe
Sand cast
Die cast
Manufacturing process;
Miller
centre lathe
Sand cast
Die cast
Manufacturing process;
Miller
centre lathe
Sand cast
Die cast
Manufacturing process;
Miller
centre lathe
Sand cast
Die cast
This machine is used for...
Connecting metal components together
Making a surface flat
Decreasing the diameter of metal rod
making a channel
Creating screw threads
This machine is used for...
Connecting metal components together
Making a surface flat
Decreasing the diameter of metal rod
making a channel
Creating screw threads
Mild steel is used to make car panels because...
it is strong
it does not rust
it is tough
it is easily fabricated
Brass is commonly used to make door furniture because...
it resists corrosion
it is a good thermal conductor
it is durable
it is lightweight
Cast iron is commonly used to make drain covers because...
it is lightweight
it is a good thermal conductor
it is an economic choice
it is strong
Solder is used to connect electronic components because...
it is a good electrical conductor
it is strong
it has high fusibility (it melts and solidifies readily)
it is hard
