Woods Flashcards
1
Q
examples of hardwoods
A
oak
mahogany
beech
2
Q
examples of softwoods
A
cedar
pine
redwood
3
Q
examples of manufactured boards
A
MDF
hardboard
plywood
chipboard
4
Q
examples of fibres / composites
A
carbon fibre (cfrp)
glass fibre (grp)
5
Q
what tree does softwood come from
A
coniferous
evergreen
6
Q
what are coniferous tree leaves like
A
needles
7
Q
what tree does hardwood come from
A
decidious
8
Q
advantages of softwoods
A
- softwoods grow faster
- softwoods are cheaper than hardwoods
- the grain is wider so its more absorbent
- easier to work with than hardwoods
9
Q
advantages of hardwoods
A
- closer grain so its dense and hard wearing
- aesthetically appealing
10
Q
disadvantages of hardwoods
A
- slower growing than softwoods
- more expensive as well
11
Q
properties of timber
A
strength
toughness
hardness
12
Q
definition of strength
A
the amount of load or compression it can withstand
13
Q
definition of toughness
A
absorption of energy through shock before splitting
14
Q
definition of hardness
A
how resistant the surface is
scratch proof?
15
Q
what can manufactured boards be made of
A
recycled wood
sawdust
low grade timbers
