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Design & Technology > 1. materials (woods) > Flashcards

1. materials (woods) Flashcards

1
Q

What are the three types of timbres?

A
  • Hardwoods
  • Softwoods
  • Manufactured boards
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2
Q

What are the properties of hardwood trees?

A
  • They come from deciduos trees, that shed their leaves every year
  • Hardwood trees can take hundreds of years to grow fully
  • they have thick trunks with branches at the top
  • they tend to be denser, heavier and harder than softwoods
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3
Q

What are the properties of softwoods?

A
  • They come from coniferous (evergreen) trees that have needles instead of leaves
  • Softwood trees keep their needles all year round
  • Softwood trees grow much faster than hardwood trees
  • Softwood trees grow tall and straight
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4
Q

What can manufactured boards be made from?

A

Hardwood and softwood

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5
Q

What is timbre and where does it come from?

A
  • the general name given to wooden planks and boards
  • it comes from trees that are cut down into logs and then sawn into planks
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6
Q

How are manufacturing/engineered boards made?

A
  • They are made by gluing and compressing wood fibres or layers together (man-made)
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7
Q

What are some examples of hardwoods?

A
  • oak
  • mahogany
  • beech
  • ash
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8
Q

What are some examples of softwoods?

A
  • spruce
  • pine
  • cedar
  • larch
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9
Q

What are some examples of manufactured/engineered boards?

A
  • MDF
  • plywood
  • chipboard
  • hardboard
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10
Q

Describe the properties of MDF?

A
  • has a smooth, even surface
  • easily machined and painted
  • available in water and fire resistant form
  • often veneered or painted to improve its appearance
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11
Q

What are the uses for MDF?

A

furniture and interior panelling

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12
Q

Describe the properties of chipboard?

A
  • made of chips of wood glued together with urea formaldehyde (glue)
  • usually veneered with an attractive hardwood or covered in plastic laminate
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13
Q

What are the uses for chipboard?

A
  • kitchen and bedroom furniture
  • shelving and general DIY work
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14
Q

Describe the properties of plywood?

A
  • a very strong board, constructed of layers of veneer or piles, which are glued together with the grains at 90 degrees to each other
  • interior and exterior grades available
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15
Q

What are the uses of plywood?

A
  • furniture making
  • boat building and exterior work
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16
Q

Describe the properties of hardboard?

A
  • A very cheap particle board
  • can have a laminated plastic surface
17
Q

What are the uses of hardboard?

A
  • kitchen unit and furniture back panels
18
Q

What are the properties of oak?

A
  • very strong, light-brown wood
  • open grained
  • very hard, but quite easy to work with
19
Q

What are the properties of mahogany?

A
  • reddish-brown in colour
  • easy to work with
19
Q

What are the uses of oak?

A
  • high quality furniture
  • beams used in buildings
  • veneers
20
Q

What are the uses of mahogany?

A
  • indoor furniture
  • shop fittings
  • bars
  • veneers
20
Q

What are the properties of beech?

A
  • a straight, grained hardwood with a fine texture
  • light in colour
  • very hard but easy to work with
  • can be steam bent
21
Q

What are the uses of beech?

A
  • furniture
  • toys
  • tool handles
22
Q

What are the properties of ash?

A
  • open grained
  • easy to work with
  • pale cream colour, often stained black
  • can be laminated
23
Q

What are the uses of ash?

A
  • tool handles
  • sports equipment
  • furniture
  • ladders
  • veneers
24
Q

What are the properties of pine?

A
  • pale-yellow coloured with dark lines and a fine, even texture
  • medium in weight
  • stiff and stable
  • inexpensive
25
Q

What are the uses for pine?

A
  • readily available for DIY work
  • mainly used for constructional work and simple joinery
  • furniture
26
Q

What are the types of manufacturing processes for woods?

A
  • Planning - to make the wood smooth and even
  • Sawing - cutting woods into various shapes and sizes
  • Drilling - to make holes in the wood
  • Shaping - forming the wood into a desired shape
  • Sanding - removing material from the wood using abrasive materials
  • Finishing - applying a protective coat or sealant

Design & Technology (15 decks)

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