Nat 5 Design & Manufacture Materials

Name 2 soft woods

Red Pine - strong, can be difficult to work with as it has lots of knots, straight grained

Spruce - easy to work with, strong. tough

Name 2 hard woods

Oak - very strong, tough, durable, can be difficult to work with

Mahogany - hard, strong, expensive,

Name 2 Man-Made Boards

Plywood - strong, durable, comes in large sheets

Chipboard - relatively smooth surface, rigid board, can chip easil

What is a ferrous metal

Ferrous metals have iron in their structure, will rust and will react to a magnet

Name 2 ferrous metals

Cast Iron - tough, strong, can be brittle

Mild Steel - easily worked, tough, easy to weld, ductile

What is a non-ferrous metal

Non-Ferrous metals do not rust do not contain iron and are not magnetic

Name 2 non-ferrous metals

Aluminium - strong but light, easy to machine

Brass - can be cast easily, gold brown colour, shiny finish

What is Thermoplastics

Thermoplastics can be reheated and reshaped when heated

Name 2 Thermoplastics

Acrylic - tough, durable, lightweight and easily cleaned

ABS(Acrylonitrile Butadiene Styrene) - tough, strong, rigid and an electrical insulator

What is Thermosetting plastics

Thermosetting plastics cannot be reheated and reshaped when heated

Name 2 Thermosetting plastics

Urea Formaldehyde - stiff, hard, strong, brittle, good electrical insulator

Melamine Formaldehyde - stiff, hard, strong, resists some chemicals and stains