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DT GCSE > Woods, Metals & Plastics > Flashcards

Woods, Metals & Plastics Flashcards

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1
Q

Natural wood

A

Hardwood - oak, willow, ash
Softwood - larch, spruce, scots pine

Designers use natural wood because of its variations in colour and patterns

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2
Q

Manufactured Wood

A 
Plywood
MDF
Blockboard
Hardboard 
Chipboard

Produced using industrial production techniques

Consists of glueing together wood layers or wood fibres

Provides consistency of strength and texture

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3
Q

Ferrous metals

A

Contain iron in them

Cast iron
Stainless steel
Mild steel
Steel

Prone to rusting

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4
Q

Non ferrous metals

A

Do not contain iron

Aluminium
Copper
Lead 
Zinc
Gold
Silver 
Aluminium
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5
Q

Alloys

A

Two or more metals combined to enhance its capabilities

Change:
Strength 
Melting points 
Electrical conductivity 
Colour
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6
Q

Natural Plastics

A

Amber

Latex

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7
Q

Types of synthetic

A

Thermoplastics
Thermosetting plastics

Most common forms
Aka polymers
Polymerisation

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8
Q

Thermoplastics

A

Can be remounted with heat

Polypropylene
Nylon
Acrylic
Polystyrene

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9
Q

Thermosetting plastics

A

Once mounded can’t be reshaped

Rear formaldehyde
Epoxy resin

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10
Q

Reinforced plastics

A

Plastics that can be reinforced by the addition of fibres

Glass fibres
Carbon fibres

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DT GCSE (4 decks)

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