Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

GCSE Product Design - 4555 > Metals > Flashcards

Metals Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Geography - AQA flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route B flashcards
1
Q

What is an alloy?

A

2 or more metals combined to combine properties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the properties and uses of cast iron?

A
  • strong
  • brittle
  • car brake disks
  • vices
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is mild steel?

A

Iron and carbon

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the properties and uses of mild steel?

A
  • strong
  • cheap
  • rusts easily
  • screws
  • nails
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is stainless steel?

A

Iron + carbon + chromium + nickel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the properties and uses of stainless steel?

A
  • hard
  • doesn’t rust
  • expensive
  • surgical equipment
  • cutlery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the properties and uses of zinc?

A
  • weak
  • resists corrosion

•coating metal such as steel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the properties and uses of copper?

A
  • soft
  • malleable
  • conductive
  • ductile
  • water pipes
  • pans
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the properties and uses of brass?

A
  • strong
  • resists corrosion
  • malleable
  • ductile
  • conductive
  • door handles
  • electrical parts
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the properties and uses of silver?

A
  • soft
  • malleable
  • ductile
  • conductive
  • expensive
  • jewellery
  • expensive cutlery
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is pewter?

A

Tin + copper + antimony

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the properties and uses of pewter?

A
  • soft
  • cheaper than silver
  • jewellery
  • ornaments
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the different forms metal can come in?

A
  • sheet
  • strips
  • different shaped rods / bars (circles / squares etc)
  • pipes / tubes
  • angle shaped
  • u shaped channel
  • I shaped girder
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Why is it good that manufacturers can get their metal in different forms?

A

So that they can get roughly the size that they need minimising waste and costs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where is metal extracted from?

A

Metal ore

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What happens to metal ore to extract the metal?

A

It is crushed and heated to melt it in a blast furnace and is the refined to remove impurities

The molten metal is cast (poured into a mould) and can be run through rollers to shape it

17
Q

What can beat treatments do to metals?

A

Change their properties

18
Q

What is annealing?

A

The metal is heated and left to cool slowly

19
Q

What properties does annealing add?

A
  • softer
  • more ductile
  • less brittle
20
Q

What is hardening?

A

Heating a metal until it is red hot and then plunging it into cold water or oil

21
Q

What properties does hardening add?

A
  • harder

* brittleness

22
Q

What is often done after hardening to reduce brittleness?

A

Tempering

23
Q

What is tempering?

A

Steel:

Gently heated as it gets hotter it’s colour changes, the colour tells you how tough it has become

24
Q

What is the colour for the weakest toughness?

A

Pales straw

25
Q

What is the colour for the strongest toughness?

A

Blue

26
Q

What is the colour for the medium toughness?

A

Browny purple

27
Q

What properties does tempering add?

A

•toughness

28
Q

Why is metal coated?

A

For protection

29
Q

How can metal be coated?

A
  • painting
  • plastic coating
  • plating
  • lacquering
30
Q

What is paining as a metal coating?

A

A primer is applied (red oxide or zinc chromate for steel) so that the paint layers bond and stick to the metal and then the top coat is applied

31
Q

What is plastic coating?

A

A metal is heated and then plunged into fluidised powder (fine powder which acts like a liquid by passing gas through it) the coated metal is then put back in the oven for the coat to fuse to the surface

32
Q

What is plating?

A

Whereby another metal is coated onto a metal o next through electrolysis

33
Q

What is lacquering?

A

A thin layer of cellulose gum or varnish is applied and leaves a transparent coating providing a barrier against oxidisation and tarnishing

34
Q

What is lacquering often used on?

A

Jewellery and decorative items

35
Q

What does a ferrous metal contain?

A

Iron

GCSE Product Design - 4555 (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions