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GCSE AQA Design and Technology - Theory > 1.6 Materials Categories and Properties > Flashcards

1.6 Materials Categories and Properties Flashcards

1
Q

What are the properties of Bleed proof (120 - 150gsm) paper?

A
  • Smooth paper, often used with water and spirit based markers ​
  • Prevents marker bleed (when ink runs and seeps through the paper)
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2
Q

What are the common uses of Bleed proof (120 - 150gsm) paper?

A

Used for presentation drawrings

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3
Q

What did early artists use before bleed proof paper?

A
  • Goatskin
  • Sheepskin
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4
Q

What are the properties of Cartridge paper (120 - 150gsm)?

A
  • Good quality white paper often with a slight texture​
  • Available in different weights
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5
Q

What are the common uses of Cartridge paper (120 - 150gsm)?

A
  • Paints and markers
  • Drawing
  • Brochures
  • Pamphlets
  • Booklets
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6
Q

What are the properties of Grid paper (80 - 100gsm)?

A

Paper printed with different grids as guidelines (these can be isometric or differently sized grids)

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7
Q

What are the common uses of Grid paper (80 - 100gsm)?

A

Quick model-making and working drawings

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8
Q

What are the properties of Layout paper (50gsm)?

A
  • Thin
  • Translucent
  • Lightweight
  • Can be drawn on with markers and takes colours well
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9
Q

What are the common uses of Layout paper (50gsm)?

A

Initial quick sketching and tracing

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10
Q

What are the properties of Tracing paper ​(60/90gsm)?

A
  • Thin
  • Transparent
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11
Q

What are the common uses of Tracing paper (60/90gsm)?

A

Tracing copies of drawings

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12
Q

What are the properties of a Corrugated card (250gsm +)?

A
  • Strong, lightweight material ​
  • Made up of two or more layers and a fluted middle section leading to good insulating properties ​
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13
Q

What are the common uses of Corrugated card (250gsm +)?

A
  • Packaging such as pizza boxes
  • Large boxes used for heavy items that need protecting
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14
Q

What are the properties of the Duplex board (230 - 420gsm)?

A

Thin board which often has one side that is suitable for printing

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15
Q

What are the common uses of Duplex board (230 - 420gsm)?

A

Food packaging

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16
Q

What are the properties of Foil-lined board?

A

Board covered on one side with aluminium foil, making it a good insulator of heat

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17
Q

What are the common uses of Foil-lined board?

A

Takeaway or ready meal packaging

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18
Q

What are the properties of Foam core board?

A
  • Two pieces of board with a core of foam to increase the thickness
  • Thick board that is very lightweight
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19
Q

What are the common uses of Foam core board?

A

Model making, such as architectural models

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20
Q

What are the properties of Inkjet cards (120 - 280gsm)?

A

Treated so it can be used in all inkjet printers

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21
Q

What are the common uses of Inkjet cards (120 - 280gsm)?

A

Printing in inkjet printers

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22
Q

What are the properties of Solid white board (200 - 400gsm)?

A
  • Top quality cardboard, smooth and white
  • Good for printing on
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23
Q

What are the common uses of Solid white board (200 - 400gsm)?

A

Book covers

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24
Q

What are the properties of Ash (hardwood)?

A
  • Tough and flexible, wide grained
  • Finishes well
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25
Q

What are the common uses of Ash (hardwood)?

A
  • Sports equipment
  • Ladders
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26
Q

What are the properties of Beech (hardwood)?

A
  • Hard, strong, close grain
  • Prone to warping and splitting
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27
Q

What are the common uses of Beech (hardwood)?

A
  • Furniture
  • Children’s toys
  • Workshop tool handles
  • Bench tops
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28
Q

What are the properties of Mahogany (hardwood)?

A
  • Strong and durable ​
  • Available in wide planks ​
  • Fairly easy to work but can have interlocking grain
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29
Q

What are the common uses of Mahogany (hardwood)?

A
  • Good quality furniture
  • Panelling
  • Veneers
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30
Q

What are the properties of Oak (hardwood)?

A
  • Hard, tough, durable, open grain​
  • Can be finished to a high standard
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31
Q

What are the common uses of Oak (hardwood)?

A
  • Timber framed buildings
  • High quality furniture
  • Flooring
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32
Q

What are the properties of Balsa (hardwood)?

A
  • Strong and durable
  • Lightweight
  • Easy to work
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33
Q

What are the common uses of Balsa (hardwood)?

A
  • Model making
  • Floats and rafts
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34
Q

What are the properties of Larch (softwood)?

A
  • Reddish in colour and has a striking pattern ​
  • Tough but easy to work, although quite resinous and prone to splitting
  • Naturally resistant to rot
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35
Q

What are the common uses of Larch (softwood)?

A
  • Fencing
  • Fence posts
  • Cladding
  • Decking
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36
Q

What are the properties of Pine (softwood)?

A
  • Straight grained, light yellow in colour
  • Soft and easy to work
  • Can be quite knotty
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37
Q

What are the common uses of Pine (softwood)?

A

Interior joinery and furniture - Window frame

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38
Q

What are the properties of Spruce (softwood)?

A
  • Creamy white in colour ​
  • Easy to work with small knots​
  • Lightweight with good resonant properties
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39
Q

What are the common uses of Spruce (softwood)?

A
  • Bedroom furniture
  • Stringed musical instruments
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40
Q

What are the properties of medium density fibreboard (MDF)?

A
  • smooth and easy to finish
  • light brown
  • can be veneered
  • absorbs moisture
  • not suitable for outdoor use
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41
Q

What are the common uses of medium density fibreboard (MDF)?

A
  • kitchens
  • flat pack furniture
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42
Q

What are the properties of plywood?

A
  • odd number of layers of veneer glued at 90° for strength
    aesthetically pleasing outer layer
  • easy to cut and finish
  • can be stained or painted
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43
Q

What are the common uses of plywood?

A
  • shelving
  • construction
  • toys
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44
Q

What are the properties of chipboard?

A
  • compacted wood chips
  • laminated with a variety of coverings
  • end cuts are difficult to finish
  • strong
  • absorbent to water
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45
Q

What are the common uses of chipboard?

A
  • veneered worktops
  • flooring
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46
Q

What is a ferrous metal?

A

A metal or alloy that contains iron and is magnetic

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47
Q

What is a non-ferrous metal?

A

A metal or alloy that doesn’t contain iron, which means that it doesn’t rust

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48
Q

What is the composition of Cast iron?

A

Iron and 3.5% carbon

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49
Q

What are the properties of Cast iron?

A
  • Hard surface but has a brittle soft core
  • Strong compressive strength
  • Cheap
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50
Q

What are the common uses of Cast iron?

A
  • Vines
  • Car brake discs
  • Cylinder blocks
  • Manhole covers
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51
Q

What is the composition of Low carbon steel (mild steel)?

A

Iron and 0.15 - 0.35% carbon

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52
Q

What are the properties of Low carbon steel (mild steel)?

A
  • Good tensile strength
  • Tough
  • Malleable
  • Poor resistance to corrosion
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53
Q

What are the common uses of ​Low carbon steel (mild steel)?

A

​​- Car bodies
- Nuts
- Bolts and screws
- RSJ’s and girders

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54
Q

What is the composition of High carbon steel (tool steel)?

A

Iron and 0.70 - 1.4% carbon

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55
Q

What are the properties of High carbon steel (tool steel)?

A
  • Hard but also brittle
  • Less tough, malleable or ductile than medium carbon steel
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56
Q

What are the common uses of High carbon steel (tool steel)?

A
  • Screwdrivers
  • Chisels
  • Taps
  • Dies
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57
Q

Is Cast iron a ferrous or non-ferrous metal?

A

Ferrous metal

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58
Q

Is Low carbon steel (mild steel) a ferrous or non-ferrous metal?

A

Ferrous metal

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59
Q

Is High carbon steel (tool steel) a ferrous or non-ferrous metal?

A

Ferrous metal

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60
Q

Is Aluminium a ferrous or non-ferrous metal?

A

Non-ferrous metal

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61
Q

What is the melting point of Aluminium?

A

660

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62
Q

What is the composition of Aluminium?

A

Pure metal (often alloyed with copper and manganese depending on application)

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63
Q

What are the properties of Aluminium?

A
  • Lightweight, soft, ductile and malleable
  • A good conductor of heat and electricity ​
  • Corrosion resistant ​
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64
Q

What are the common uses of Aluminium?

A
  • Aircraft bodies
  • High-end car chassis
  • Cans
  • Cooking pans
  • Bike frames
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65
Q

Is copper a ferrous or non-ferrous metal?

A

Non-ferrous metal

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66
Q

What is the melting point of Copper?

67
Q

What is the composition of Copper?

A

Pure metals

68
Q

What are the properties of Copper?

A
  • Extremely ductile and malleable
  • An excellent conductor of heat and electricity
  • Easily soldered and corrosion resistant
69
Q

What are the common uses of Copper?

A
  • Aircraftbodies
  • High-end carchassis
  • Cans
  • Cooking pans
  • Bikeframes
70
Q

Is Zinc a ferrous or non-ferrous metal?

A

Non-ferrous metal

71
Q

What is the melting point of Zinc?

72
Q

What are the properties of Zinc?

A
  • Weakin its pure state
  • High level of corrosion resistance
  • Low melting point
  • Easily worked
73
Q

What is the composition of Zinc?

A

Pure metals

74
Q

What are the common uses of Zinc?

A
  • A galvanisedcoating in crashbatteries
  • Corrugatedroofing
  • Intricatedie cast products
75
Q

Is Tin a ferrous or non-ferrous metal?

A

Non-ferrous metal

76
Q

What is the melting point of Tin?

77
Q

What is the composition of Tin?

A

Pure metals

78
Q

What are the properties of Tin?

A
  • Soft ductile and malleable
  • Low melting point
  • Excellent corrosion resistance
79
Q

What are the common uses of Tin?

A
  • Coating on foodand drinks cans
  • Solders
80
Q

What is an alloy?

A

A metal made by combining two or more metallic elements,especially to give greater strength or resistance to corrosion.

81
Q

What is the composition of Brass-non-ferrousalloy?

A

Alloyof copper (65%) and zinc (35%)

82
Q

What are the properties of Brass-non-ferrousalloy?

A
  • Strongand ductile​
  • Casts well​
  • Corrosion resistant​
  • Conductor ofheatand electricity
83
Q

What are the common uses of Brass-non-ferrousalloy?

A
  • Casting
  • Forgings
  • Taps
  • Wood screws
84
Q

What is the composition of Stainless steel-ferrous alloy?

A

Alloy of steel including chromium (18%) and nickel (8%)

85
Q

What are the properties of Stainless steel-ferrous alloy?

A
  • Hard and tough​
  • Excellent resistanceto corrosion
86
Q

What are the common uses of Stainless steel-ferrous alloy?

A
  • Sinks
  • Cutlery
  • Surgical equipment
  • Homewares​
87
Q

What is the composition of high-speed steel?

A
  • 18% tungsten
  • 4% chromium
  • 1% vanadium
  • 0.5–0.8% carbon
88
Q

What are the properties of high-speed steel?

A
  • Dark grey when used for tool bits
  • withstands high temperatures
  • can be allowed with a variety of materials for different properties
89
Q

What are the common uses of high-speed steel?

A
  • drill bits
  • saw blades
90
Q

What is the composition of Duralumin?

A
  • Alloy of aluminium(90%)
  • Copper (4%)
  • Magnesium (1%)
  • Manganese (0.5%-1%)
91
Q

What are the properties of Duralumin?

A
  • Strong,soft andmalleable​
  • Excellent corrosionresistance​
  • Lightweight
92
Q

What are the common uses of Duralumin?

A
  • Aircraft structuresand fixings
  • Suspensionapplications
  • Fueltanks
93
Q

What are polymers?

A

Mostpolymersare synthetic, meaningthey areman-made and have beendesigned bychemical engineers. Different polymers are created all thetime so that the demands of theconsumercan be met.

94
Q

What are the two categories of a polymer?

A
  • Thermosetting plastic or Thermoset
  • Thermoforming plastic or Themoplastic
95
Q

What are the properties of a Thermosettinng or Thermoset polymer?

A

Resist heat and fire (Good for electrical fittings and pan handles)​
Chemical change when heated and moulded, they permanently becomehard and rigid​
Non-recyclable​

96
Q

What are the properties of a Thermoforming or Thermoplastic polymer?

A
  • Don’t resist heat well,they areeasily formed into different shape byheating, melting and remoulding
  • Easy to recycle
97
Q

Is Acrylic (PMMA) a thermosetting or thermoforming polymer?

A

Thermoforming polymer

98
Q

What are the properties of Acrylic (PMMA)?

A
  • Hard
  • Excellent optical quality ​
  • Good resistance to weathering
99
Q

What are the common uses of Acrylic (PMMA)?

A
  • Car light units
  • Bath tubs
  • Shop signage and displays
100
Q

Is High- impact polystyrene (HIPS) a thermosetting or thermoforming polymer?

A

Thermoforming polymer

101
Q

What are the properties of High- impact polystyrene (HIPS)?

A
  • Tough, hard and rigid ​
  • Good impact resistance ​
  • Lightweight
102
Q

What are the common uses of High- impact polystyrene (HIPS)?

A
  • Children’s toys
  • Yoghurt pots
  • Refrigerator liners
103
Q

Is High- density polystyrene (HDPE) a thermosetting or thermoforming polymer?

A

Thermoforming polymer

104
Q

What are the properties of High- density polystyrene (HDPE)?

A
  • Hard and stiff ​
  • Excellent chemical resistance
105
Q

What are the common uses of High- density polystyrene (HDPE)?

A
  • Washing up bowls
  • Buckets
  • Milk crates
  • Bottles
  • Pipes
106
Q

Is Polypropylene (PP) a thermosetting or thermoforming polymer?

A

Thermoforming polymer

107
Q

What are the properties of Polypropylene (PP)?

A
  • Tough ​
  • Good heat and chemical resistance ​
  • Lightweight ​
  • Fatigue resistant
108
Q

What are the common uses of Polypropylene (PP)?

A
  • Toys
  • DVD & Blu-ray cases
  • Food packaging film
  • Bottle caps
  • Medical equipment
109
Q

Is Polyvinyl chloride (PVC) a thermosetting or thermoforming polymer?

A

Thermoforming polymer

110
Q

What are the properties of Polyvinyl chloride (PVC)?

A
  • Hard and tough ​
  • Good chemical and weather resistance ​
  • Low cost ​
  • Can be rigid or flexible
111
Q

What are the common uses of Polyvinyl chloride (PVC)?

A
  • Pipes
  • Guttering
  • Window frames
112
Q

Is Polyethylene terephthate (PET) a thermosetting or thermoforming polymer?

A

Thermoforming polymer

113
Q

What are the properties of Polyethylene terephthate (PET)?

A
  • Tough and durable ​
  • Lightweight ​
  • Food safe ​
  • Impermeable to weather ​
  • Low cost
114
Q

What are the common uses of Polyethylene terephthate (PET)?

A
  • Drink bottles
  • Food packaging
115
Q

Is Epoxy resin a thermosetting or thermoforming polymer?

A

Thermosetting polymer

116
Q

What are the properties of Epoxy resin?

A
  • Electrical insulator ​
  • Good chemical and wear resistance ​
117
Q

What are the common uses of Epoxy resin?

A
  • Adhesives such as araldite ​
  • PCB components encapsulation
118
Q

Is Melamine formaldehyde (MF) a thermosetting or thermoforming polymer?

A

Thermosetting polymer

119
Q

What are the properties of Melamine formaldehyde (MF)?

A
  • Stiff, hard and strong ​
  • Excellent resistance to scratching and staining
120
Q

What are the common uses of Melamine formaldehyde (MF)?

A
  • Kitchen work-surface
  • Laminates
  • Tableware
121
Q

Is Phenol formaldehyde (PF) a thermosetting or thermoforming polymer?

A

Thermosetting polymer

122
Q

What are the properties of Phenol formaldehyde (PF)?

A
  • Hard ​
  • Heat and chemical resistance ​- Good electrical insulators ​
  • Limited colours available
123
Q

What are the common uses of Phenol formaldehyde (PF)?

A
  • Electrical fittings
  • Saucepan handles
124
Q

Is Polyester resin a thermosetting or thermoforming polymer?

A

Thermosetting polymer

125
Q

What are the properties of Polyester resin?

A
  • Brittle but becomes tough when laminated with glass fibre ​
  • Hard and resistant to UV
126
Q

What are the common uses of Polyester resin?

A
  • GRP boats
  • Car body panels
127
Q

Is Urea formaldehyde (UF) a thermosetting or thermoforming polymer?

A

Thermosetting polymer

128
Q

What are the properties of Urea formaldehyde (UF)?

A
  • Stiff and hard ​
  • Heat resistant ​
  • Good electrical insulator
129
Q

What are the common uses of Urea formaldehyde (UF)?

A
  • White electrical fittings
  • Toilet seats
  • Adhesive used in MDF
130
Q

Is cotton (smooth) a natural or synthetic fibre?

A

Natural fibre

131
Q

What are the properties of cotton (smooth)?

A
  • Strong, good at absorbing moisture (this means they can time a long time to dry)​
  • Can be washed and ironed at high temperatures ​
  • Creases badly and shrinks unless a special finish is applied ​
  • Easy to set alight, can be dangerous
132
Q

What are the common uses of cotton (smooth)?

A
  • T-shirts
  • Socks and underwear
  • Denim jeans
  • Bed sheets
  • Fishing nets
  • Medical dressing
  • Nappies
133
Q

Is wool (soft or coarse) a natural or synthetic fibre?

A

Natural fibre

134
Q

What are the properties of wool (soft or coarse)?

A
  • Soft and warm​
  • Comfortable to wear; will not crease easily ​
  • Water-resistant, but also very good at absorbing moisture (takes a long time to dry)​
  • Most wools will shrink if put in a tumble dryer​
  • Does not set alight easily and when is does , it puts itself out​
  • Shrinks badly (felting) and therefore difficult to wash unless a special finish is applied to prevent shrinking
135
Q

What are the common uses of wool (soft or coarse)?

A
  • Jumper
  • Coats
  • Socks
  • Blankets
  • Carpet- Tennis balls
  • Pool tables
  • Mattresses
136
Q

Is Silk (very smooth and glossy) a natural or synthetic fibre?

A

Natural fibre

137
Q

What are the properties of Silk ​(very smooth and glossy)?

A
  • Fibres have a triangular cross section that makes is soft and smooth and gives it a lustre ​
  • Lightweight, absorbent, warm in cold conditions but cold in hot weather​
  • A strong fibre that becomes weak when wet so needs to be washed carefully​
  • Has natural elasticity so can crease very badly​
  • Expensive and often considered as a luxury fibre
138
Q

What are the common uses of Silk ​(very smooth and glossy)?

A
  • Evening dresses
  • Ties
  • Lingerie
  • Bedding
  • Wall hangings
  • Parachutes ​
139
Q

Is Polyester ​(smooth) a natural or synthetic fibre?

A

Synthetic fibre

140
Q

What are the properties of Polyester ​(smooth)?

A
  • Very strong and resistant to abortion ​
  • Does not absorb water so will dry quickly ​
  • Crease resistant​
  • Will soften when heated (it is thermoplastic) and can be heat-set into new shapes that it will maintain when cooled down ​
  • Finishes can be added easily (e.g. permenant pleats and creases) ​
  • A smooth fibre that does not trap air, so is not very warm to wear
141
Q

What are the common uses of Polyester ​(smooth)?

A
  • Clothing
  • Bedspreads
  • Sheets
  • Pillows
  • Padding for upholstery
  • Carpets
  • Curtains
  • Ropes
  • Sails for boats
142
Q

Is Polyamide (Nylon) a natural or synthetic fibre?

A

Synthetic fibre

143
Q

What are the properties of Polyamide​ (Nylon)?

A
  • Fine and lightweight but extremely strong and abrasion resistant ​
  • Does not absorb moisture, stays strong when wet ​
  • Not affected by alkalis but is weakened by bleach ​
  • Long exposure to sun will turn white nylon yellow and eventually rot the fabric ​
  • Thermoplastic so it can be heat-set
144
Q

What are the common uses of Polyamide​ (Nylon)?

A
  • Underwear
  • Shoelaces
  • Tights
  • Tent
  • Parachutes
  • Carpets
  • Seatbelts
145
Q

Is Elastance/Lycra (soft) a natural or synthetic fibre?

A

Synthetic fibre

146
Q

What are the properties of Elastance/Lycra (soft)?

A
  • Very strong (can stretch by up to six time its length and then return to its original length), allowing it to fit close to the body and give freedom of movement ​
  • Because it is so stretchy, it cannot be used on its own and needs to be blended with other fibres ​
  • Crease resistant ​
  • Easily washable ​
  • Absorbent ​
  • Resistant to perspiration and quick drying ​
  • Not very warm to wear
147
Q

What are the common uses of Elastance/Lycra (soft)?

A
  • Swimwear
  • Sportswear
  • Leggings
  • Tights
148
Q

What are the characteristics of a filament?

A
  • Shiny
  • Smooth
  • Strong
149
Q

What are the characteristics of a staple yarn?

A
  • Dull, flat appearance
  • Rough or fuzzy to touch
150
Q

What are woven fabrics?

A

They are made by interlacing (crossing alternately over and under) two sets of yarns​

151
Q

Are Weft knit fabrics knitted or non-woven fabrics?

A

Knitted fabrics

152
Q

What are some examples of Weft knit fabrics?

A
  • Jersey​
  • Rib knits​
  • Polyester fleece
153
Q

What are the properties of Weft knit fabrics?

A
  • Very strong but can be pulled out of shape ​
  • Have a soft drape and do not crease easily ​
  • Trap air easily and are therefore warm in still air, but cool in windy weather as air can still get through the gaps in the fabric
154
Q

What are the common uses of Weft knit fabrics?

A
  • Socks
  • T-shirts
  • Jumpers
  • Scarves
  • Hats
  • Leggings
155
Q

Are Wrap knit fabrics a knitted or non-woven fabrics?

A

Knitted fabrics

156
Q

What are some examples of Wrap knit fabrics?

A
  • Tricot
  • Knitted lace
157
Q

What are the properties of Wrap knit fabrics?

A
  • Less stretchy than weft knits; firm ​
  • Do not ladder and cannot be unravelled ‘row by row’​
158
Q

What are the common uses of Wrap knit fabrics?

A
  • Swimwear
  • Underwear
  • Net curtains
  • Industrial textiles and geotextiles
159
Q

Is bonded fabric a knitted or non-woven fabric?

A

Non-woven fabric

160
Q

What are the properties of bonded fabric?

A
  • Cheap to manufacture and use ​
  • Not as strong as woven or knitted fabrics, and do not drape as well​
  • Easy to sew​
  • Crease resistant ​
  • Does not fray
161
Q

What are the common uses of bonded fabric?

A
  • Interfacing and interlining
  • Disposable items (e.g. Cleaning cloths and hospital items such as dressings)
162
Q

Is felted fabric a knitted or non-woven fabric?

A

Non-woven fabric

163
Q

What are the properties of felted fabric?

A
  • Warm and soft ​
  • Does not fray ​
  • Not very strong does not drape well
  • No elasticity ​
  • Expensive
164
Q

What are the common uses of felted fabric?

A
  • Hats
  • Slippers
  • Toys
  • Insulation materials
  • Upholstery

GCSE AQA Design and Technology - Theory (6 decks)

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