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easier textiles flashcards > properties of materials- woods > Flashcards

properties of materials- woods Flashcards

1
Q

where do softwoods come from?

A

coniferous trees

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2
Q

what are the properties of softwoods?

A

-trees have needles rather than leaves
-quick growing
-less expensive than hardwood
-poor resistance to decay

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3
Q

what are the three types of softwoods?

A

larch
pine
spruce

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4
Q

what are the properties of larch?

A

-red in colour
-good resistance to rotting
-used for garden fences and patios

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5
Q

what are the properties of pine?

A

yellow in colour with contrasting darker grain
-used for interior joinery and furniture

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6
Q

what are the properties of spruce?

A

-creamy white in colour
-lightweight
-close grain
-used for furniture and musical instruments

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7
Q

what are the properties of hardwoods?

A

-comes from deciduous trees
-lose their leaves in winter
-slower growing than softwood
-more expensive than softwood
-good resistance to decay

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8
Q

what are the five hardwoods?

A

-oak
-beech
-mahogany
-balsa
-ash

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9
Q

what are the properties of oak wood?

A

-hard
-tough
-durable
-used for timber framed buildings and high end furniture

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10
Q

what are the properties of beech wood?

A

-hard
-strong
-does not splinter
-used for childrens toys, benches and furniture and tool handles

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11
Q

what are the properties of mahogany?

A

-deep reddish brown colour
-easy to work with
-high quality finish
-used for high quality furniture

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12
Q

what are the advantages of manufactured boards?

A

-they are available in large sheets
-have consistent properties
-less likely to twist, warp or splint
-veneer can be applied to them to give them better appearances or properties
-suited to CNC machining
-much cheaper than hardwoods or softwoods

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13
Q

what are the three types of manufactured boards?

A

plywood
MDF-medium density fireboard
chipboard

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14
Q

what is plywood made from?

A

several layers of veneer, glued together at 90 degrees.

it is strong, but it is more expensive

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15
Q

what is plywood used for?

A

furniture
flooring
roofing
boat building

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16
Q

what is MDF made from?

A

tiny soft wood fibres held together by glue

it is cheap, dense, cuts easily and has an even surface but it can be damaged by moisture

17
Q

what are some uses of MDF?

A

-used in ‘self-assembly’ furniture

18
Q

what is chipboard made from?

A

wood chips, shavings and dust which are compressed, glued and veenered- it is quite cheap

19
Q

what are some uses of chipboard?

A

-kitchen worktops and flatpack furniture

20
Q

where do hardwoods come from?

A

decidous trees

21
Q

where do softwoods come from?

A

conferous trees

22
Q

which is faster growing softwoods or hardwoods?

A

soft woods

23
Q

what are softwoods considered?

A

a sustainable material

24
Q

which loses leaves in autumn- softwoods or hardwoods?

A

hardwoods

easier textiles flashcards (32 decks)

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