Properties and Types of Materials

What type of wood is the above?

• Manmade

• Softwood

• Hardwood

What are the three main types of timber ?

• Light wood, heavy wood, plywood

• Softwood, Hardwood, Manufactured

• Light wood, heavy wood and man-made

• Straight grain, knotted wood, no grain

Hardwood trees have the following properties (2 answers)

• They are used in building work and construction.

• Their used for high quality furniture.

• Thin needle like leaves, grow fast and stay green all year.

• Broad leaves, grow slowly and loose leaves in winter.

Softwood trees have the following properties (2 answers)

• They are used in building work and construction

• Their used for high quality furniture

• Thin needle like leaves, grow fast and stay green all year.

• Broad leaves, grow slowly and loose leaves in winter.

Which of the following are properties of manufactured boards?

• Lightweight, waterproof and can be any colour

• Large sheets of material, multi directional strength,

• Comes in one standard thickness

• Waterproof, fire resistant, heavy

What are the two main categories of metals?

• shiny and rusty

• Ferrous and non-ferrous

• Alloys and pure metals

• steel and non-steel

Ferrous metals all contain:

• iron

• lead

• tin

• steel

Non-ferrous metals include:

• Aluminium, copper and tin

• Bronze, copper and mild steel

• Pewter, zinc and carbon steel

• Cast iron, lead and tungsten

Metals that are mixed to enhance their properties are called...

• solder

• alloys

• polymers

• alchemy

Synthetic fibers are

• Are biodegradeable and eco friendly

• Oil and coal and we have an endless supply

• Petrochemicals and are non sustainable

• Petrochemicals and be recycled