2023 AQA GCSE ENGINEERING 8852/W Unit 1 Written Paper Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
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AQA GCSE ENGINEERING 8852/W Unit 1
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AQA GCSE ENGINEERING 8852/W Unit 1
2023 AQA GCSE ENGINEERING 8852/W Unit 1
Written Paper Question Paper & Mark
scheme (Merged) June 2023 [VERIFIED]
What is strength? -ANSWRRS>>>Strength is the ability of a material to withstand a force
applied to it
What is ductility? -ANSWRRS>>>Ductility is the amount tha...
2023 AQA GCSE ENGINEERING 8852/W Unit 1
Written Paper Question Paper & Mark
scheme (Merged) June 2023 [VERIFIED]
What is strength? -ANSWRRS>>>Strength is the ability of a material to withstand a force
applied to it
What is ductility? -ANSWRRS>>>Ductility is the amount that a material can be deformed.
What is malleability? -ANSWRRS>>>Malleability is the ability of a material to deform
without rupturing. This means that the material can be changed without it breaking
What is hardness? -ANSWRRS>>>Hardness is the ability of a material to resist wear and
abrasion. The harder the material the harder it is to make a mark on the surface
What is toughness? -ANSWRRS>>>Toughness is the ability of a material to withstand an
impact without breaking. It is the opposite of brittleness
What is brittleness? -ANSWRRS>>>Brittle materials will shatter in response to an impact. It
is the opposite of toughness
What is stiffness? -ANSWRRS>>>Stiffness is the ability of a material to resist bending.
What is the difference between a ferrous and a non-ferrous alloy? -ANSWRRS>>>Ferrous
alloys contain iron. Non ferrous alloys do not.
What are the properties of cast iron? -ANSWRRS>>>3 - 3.5% carbon
,Good compressive strength
Hard, so can be difficult to machine, but suitable for casting
Brittle compared to other ferrous alloys
Poor corrosion resistance
Low cost
What are some uses of cast iron? -ANSWRRS>>>Anvils
Engineering vices
Tool beds
What are the properties of low carbon steel? -ANSWRRS>>>Less than 0.3% carbon
Lower strength
tough and low cost
Can't be hardened
What are some uses of low carbon steel? -ANSWRRS>>>Nails and screws
Car bodies
Steel sheets
What are the properties of High carbon steel? -ANSWRRS>>>0.8 - 1.4% carbon
Strong and hard, but not tough
Difficult to form
Can be hardened
What are some uses of high carbon steel? -ANSWRRS>>>Tools like saw blades and
hammers
, What are the properties of stainless steel -ANSWRRS>>>At least 11.5% chromium
Strong and hard
Difficult to machine
Good corrosion resistance
Relatively expensive
What are some common uses of stainless steel -ANSWRRS>>>Knives and forks, medical
equipment and sinks
What are the properties of aluminium -ANSWRRS>>>Aluminium is one of the most
occuring elements on our planet. However as a pure metal it is not as hard as steel.
Cheaper than most alloys and is corrosion resistant. This makes it ideal for items such as
soft drink cans. It is normally alloyed.
What are the properties of copper? -ANSWRRS>>>Copper is an excellent conductor of
electricity and is also ductile. It is often used to make electrical wiring. Copper has a very
good corrosion resistance so it is used to make a lot of pipes.
What are the properties of bronze -ANSWRRS>>>Bronze is an alloy of copper and tin. It is
often used for cast products, including statues.
What are the properties of brass? -ANSWRRS>>>Brass is an alloy of copper and zinc. It is
difficult to cast but can be machined to a high finish
What are the properties of lead? -ANSWRRS>>>Lead is relatively soft, malleable, ductile
and corrosion resistant.
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