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Gcse technology > timbers and boards > Flashcards

timbers and boards Flashcards

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1
Q

what are some properties of scots pine

A

A straight-grained softwood but knotty. Light in colour. Fairly strong but easy to work with. Cheap and readily available. A softwood.

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2
Q

what are some uses of scots pine

A

Used for DIY and cheap quality furniture. Mainly used for constructional work and simple joinery.

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3
Q

what are some properites of parana pine

A

Hard and straight-grained. Almost knot free. Fairly strong and durable. Expensive. Pale yellow in colour with red/brown streaks. A softwood.

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4
Q

what are some uses of parana pine

A

Used for good quality knot free pine red / brown furniture such as doors and staircases.

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5
Q

what are some properties of spruce

A

Creamy-white softwood with small hard knots. Not very durable. A softwood.

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6
Q

what are some uses of spruce

A

Used for general indoor work, whitewood furniture used in bedrooms and kitchens

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7
Q

what are the properties of yellow cedar

A

A pale yellow-coloured softwood with a fine even texture. Light in weight but stiff and stable.

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8
Q

what are the uses of yellow cedar

A

Used for furniture, boat building, veneers, and model making

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8
Q

what are the properties of european redwood

A

European redwood - Quite strong, Lots of knots, durable when preserved. cheap

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9
Q

what are some uses of european redwood

A

Used for general woodwork, cupboards, shelves, roofs.

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10
Q

what are some properties of beech

A

A straight-grained hardwood with a fine texture. Light in colour. Very hard so is ideal to be used where it is being bashed around and used often. Beech is also very easy to work with.

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11
Q

what are some uses of beech

A

Used for furniture, toys, tool handles. Can be steam bent.

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12
Q

what are some properties of oak

A

A very strong wood which is light in colour. Open grain. Hard to work with. When treated it looks very classy and elegant. A hardwood.

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13
Q

what are some uses of oak

A

Used for high class furniture, boats, beams used in buildings, veneers.

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14
Q

what are some properties of mahogany

A

An easy to work wood which is reddish brown in colour. This wood is very expensive. A hardwood.

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15
Q

what are some uses of mahogany

A

Used for expensive indoor furniture, shop fittings, bars, veneers.

16
Q

what are some properties of teak

A

A very durable oily wood which is golden brown in colour. Highly resistant to moisture and outdoor weather. A hardwood.

17
Q

what are some uses of teak

A

Used for outdoor furniture, boat building, laboratory furniture and equipment.

18
Q

what are some properties of balsa

A

is a pale white to grey. It has a distinct velvety feel. It has exceptional strength to weight properties. It is the lightest and softest wood on the market. A hardwood.

19
Q

what are some uses of balsa

A

Used for light work such as model making and model airplane construction.

20
Q

how are manfactured boards made

A

Often are made use of waste materials. For example, saw dust is used to make MDF and hardboard. The saw dust is held together with a glue.

21
Q

what are some advantages of manufactured boards

A

Are often used as cheaper alternative to real woods.
Doesn’t look as expensive as real woods.
Are often covered with a thin layer of real wood to improve their appearance (Veneered).

22
Q

what are some properties of MDF

A

Smooth, even surface. Easily machined and painted or stained. Also available in water and fire resistant forms.

23
Q

what are some properties of block board

A

Similar to plywood but the central layer is made from strips of timber. Used where heavier structures are needed.

24
Q

what are some properties of chipboard

A

Made from chips of wood glued together. Usually veneered or covered in plastic laminate. Used for kitchen and bedroom furniture usually veneered or covered with a plastic laminated. Shelving and general DIY work.

25
Q

what are some properties of plywood

A

A very strong board which is constructed of layers of veneer or piles which are glued at 90 degrees to each other. Used for strong structural panelling board used in building construction

26
Q

what are soem properties of hardboard

A

A very cheap particle board which sometimes has a laminated plastic surface. Used for furniture backs, covering curved structures, door panels

27
Q

what is sustainability

A

Sustainability is being able to produce what we need today without future generations having to go without.

28
Q

what are some sustanability facts about forestry

A

Forestry is sustainable as long as trees are replaced, either naturally or because of replanting.
It has some important consequences:
forest habitats are destroyed
soil erosion increases, causing barren land, flooding and land slides
air pollution is caused when trees are burned after felling

29
Q

what is FSC

A

Forest Stewardship Council
Established in 1993
Promoting the responsible management of the worlds forests
Trying to ensure that there are enough resources remaining to support future generations of humans and animals

30
Q

what are the uses of wood stain

A

A wood stain will change the colour of the timber but offers little protection.

31
Q

what are the uses of wood reservative

A

A wood preservative is used to protect the wood outdoors, gives protection against weather and can be coloured.

32
Q

what is a good use of varnish

A

Varnish gives protection against weather and can be coloured. Varnishes are typically used for indoor use, gives a clear protective coating that enhances the natural look of the wood

33
Q

what is a good use of danish oil/ linseed oil

A

Oil such as DANISH OIL or LINSEED OIL, are used indoors, give a shine to the surface of the wood but offer little protection

34
Q

what is a good reason for painting

A

Painting changes the colour of the wood and gives protection from the weather.

35
Q

what are some advantages of manufactured boards

A

Manufactured boards come in larger sizes than natural timbers
Manufactured boards are more stable than natural timber and will not split or twist
Veneers and laminates can be added to manufactured boards to improve their appearance.

36
Q
A

Gcse technology (7 decks)

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