This is the final – no moreRevision is fun

We start at the beginning

Remember what you need to know› Describe the aesthetic, functional and

mechanical properties of .....

You will need to answer questions where you apply the knowledge

Wood

aesthetic, functional and mechanical properties of Oak, mahogany, beech, ash and pine

Which one is the softwood and which are the hardwoods

This table needs to be learnt off by heart to gain the points

Learn thisWood and type

Properties

Uses Advantages

Disadvantaged

Oak (H) Hard, tough, durable, high density

High-quality furnitureGarden benches, boat building, veneers

Finishes well Contains an acid which corrodes steel

Mahogany (h)

DurableMedium density

Indoor stuff, window frames, veneers

Finishes well, relatively easty to work

Prone to warping, bit soft

Beech Hard Tough

Workshop benches, children’s toys, interior stuff

Turns well, finished well

Prone to warping

Ash Tough, flexible, good elasticity

Sports equipment, ladders, furniture, tool handles

Flexible Can become a bit splintered

Pine Lightweight Constructional woodwork, floorboards, children toys

Nice colour and grain pattern, grows quickly

Prone to warpingKnots can fall out and leave holes

Interesting things to think about

Wood is an organic materials as so will decay, in wetter conditions decay is quicker.

Varies widely by colour Subject to movement - Warping, bowing, cupping and

splitting – make them unusable Knots make weakness but can be aesthetics Contain more fibrous materials. Fibres are smaller and

more compact and give it greater mechanical strength.

Softwoods can have lots of resins so icky. Pale yellow and also prone to bowing etc

Generally less dense than hardwoods, more prone to water damage as end grain soaks up water if not covered.

For A to A*

Draw the product as if you had broken it apart and laid the bits on the floor.

I want to know everything about this product

Depth of detail is required Justify everything you say Every material and every component

Question time

Give three properties of oak (3 points)

The hardwood sill is made from mahogany. Explain two advantages of using mahogany rather than pine a softwood for the sill (4 marks)

Exam technique

Give and explain – what is the difference – what do you have to do?

Give can be one word

Explain mean exactly that – give a real answer with explanation

Answer this – 7 mins go.

Give three properties of oak (3 points)

The hardwood sill is made from mahogany. Explain two advantages of using mahogany rather than pine a softwood for the sill (4 marks)

Manufactured boards

They are man-made and therefore controlled

Large sheets (2440 x 1220) – make large furniture rather than joining bits together.

Dimensional stable – does not warp or cup Can be decorated - veneer or painted Can be flexible and easy to bend over

formers and laminates Waste from wood production can be used

in making MDF