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GCSE DT > Timbers > Flashcards

Timbers Flashcards

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1
Q

Examples of hardwoods

A 
Ash
Oak
Mahogany 
Balsa
Beech
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2
Q

What is a hardwood

A

the wood from a broadleaved tree (such as oak, ash, or beech) as distinguished from that of conifers.

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3
Q

What is a softwood (facts) (5)

A

. Grow in cool climates e.g Canada
. Cone baring trees (coniferous trees) mostly evergreen
. Loose grain structure
. Often used as building materials
. Trees grow very tall and straight and very fast making it easier for manufacturer to cut

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4
Q

Examples of softwoods

A

.Larch
.Pine
. Spruce

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5
Q

What are manufactured boards

A

are manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of wood, together with adhesives, or other methods of fixation to form composite material

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6
Q

Examples of manufactured boards

A

. MDF (Medium Density Fibreboard)
. Plywood
. Chipboard

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7
Q

Tanalising

A

. Mainly used outdoors
. Prevent future water absorption
. This can extend the the timbers life by up to 50 years

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8
Q

Waxing

A

. Good form of sealing wood without hiding
. Natural grain
. Left with nice smooth and shiny protective layer on surface

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9
Q

Varnishing

A

. Applied to a surface prevent moisture absorption
. Protects timber from bacteria
. Used to provide a tough and scratch resistant surface

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10
Q

Painting

A

. Applies a protective and decorative finish
. Used to provide a tough scratch resistant surface
. Used before top coat to improve vibrancy of colour and adhesion to the wood

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11
Q

Properties of Ash (4)

A
  • tough
  • flexible
  • wide grained
  • finished well
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12
Q

Common uses of Ash (2)

A
  • sports equipment

* ladders

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12
Q

Properties of Beech (4)

A
  • Hard
  • strong
  • close grain
  • Prone to warping and splitting
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12
Q

Common uses of Beech (4)

A
  • furniture
  • children’s toys
  • workshop tool handles
  • bench tops
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13
Q

Properties of Mahogany (3)

A
  • straight fine
  • even grain
  • tone wood
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14
Q

Common uses of mahogany

A

• furniture e.g cabinets and tables

15
Q

Properties of Oak (5)

A
  • strong,
  • sturdy
  • very defined grain
  • durable
  • hard to work with
15
Q

Common uses of Oak

A

• outdoor pieces (mainly used in gardens)

15
Q

Properties of Balsa (3)

A
  • high strength
  • low density
  • easily shaped
15
Q

Common uses of Balsa

A

• buoys, rafts, surf boards

15
Q

Properties of Larch (4)

A
  • Tough
  • waterproof
  • durable
  • straight or spiralled grain
16
Q

Common uses of Larch (2)

A
  • yachts

* veneer

17
Q

Properties of pine (4)

A
  • soft
  • light weight
  • straight grained
  • lack figure
18
Q

Common uses of Pine

A

• country or provincial furniture

19
Q

Properties of spruce (6)

A
  • thin
  • straight grained
  • regular texture
  • soft
  • low in weight
  • medium density
20
Q

Common uses of spruce

A

• soundboards for musical instruments

21
Q

Properties of MDF (5)

A
  • dense
  • flat
  • stiff
  • easily machined
  • no grain
22
Q

Common uses of MDF (3)

A
  • display cabinets
  • wall panels
  • storage units
23
Q

Properties of plywood (4)

A
  • high impact resistance
  • high strength to weight ratio
  • increased stability
  • strength varies due to moisture
24
Q

Common uses of Plywood (3)

A
  • furniture
  • roofing
  • flooring
25
Q

Properties of chipboard (4)

A
  • high density
  • solid
  • hard
  • relatively smooth surface
26
Q

Common uses of chipboard

A

• work surfaces

GCSE DT (10 decks)

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