Materials have 2 basic types of properties, what are they

Materials are classified into 5 broad headings. State them

How a material will react to physical forces when repeatedly bent or flexed describes:

How a material responds at different temperatures, such as freezing/melting and boiling points describes;

How a material reacts to other chemicals ,such as how metals oxidise when exposed(for example, ferrous metals in rusting)

How most ferrous(containing iron) materials are attracted to magnets or can be magnetised describes;

___________________ are a material’s conductive properties including insulation and resistance, such as how a screwdriver’s handle (insulator) protect the user from electric shock through the tip (conductor)

___________________ are the property of the surface or form of a material, such as colour

___________________ are the touch or sensory properties of a material, such as texture.

___________________ It is the degree to which liquids or gases can pass through a material, such as woods having low permeability to liquids and water resistance

The ability to withstand a constant external force without failing is known as ___________________________

The ability to change shape by stretching along its length without snapping is known as ___________________________

The ability to resist wear-and-tear, scratching and dents on the surface is known as ___________________________

The ability to bend and then return to its original shape or size is known as ___________________________

The ability to resist wear, such as weathering, over time is known as ___________________________

The ability to withstand blows or momentarily shocks is known as ___________________________

Define Aesthetics;

What is the importance os Aesthetics;

State the 8 types of Aesthetics;

The use of colour in design is very important for many reasons.For example, using green for start and red for stop.

Texture can be added to products for functional reasons such as grip, but can also be for decorative reasons.

A shape is the outline of an object. By using different shapes, designs can be made more elegant, slim, fat or chunky.

Proportion is related to weight: how heavy objects relate to each other.

The following are types Of Tools Used In The Workshop.

1 Marking out tools.

2 Measuring tools.

3 Cutting tools.

4 Driving tools

5 Workshop equipment.

Give 2 examples of  the ff;

1 Marking out tools.

2 Measuring tools.

3 Cutting tools.

4 Drawing tools

5 Workshop equipment.

Give 2 examples of  the ff;

Measuring tools.

Give 2 examples of  the ff;

Cutting tools.

Give 2 examples of  the ff;

Driving tools

Give 2 examples of  the ff;

Workshop equipment.

The cycle of thermoplastic material is Heat - Soften - Cool - Harden. (In continuous cycle)

The cycle of thermosetting material is Heat - Soften - Cool - Permanently Hard

T__________________is a synthetic plastic that hardens permanently after the application of heat or pressure. Although they soften when heated the first time and can therefore be shaped, they then become permanently stiff and solid and cannot be reshaped.

_____________________ has a characteristics called a plastic memory which enable the plastic to return to its original shape upon heating it. Unless it has been damaged by overheating or over stretching.

The characteristics of a plastic to  return to its original state unless it has been damaged by overheating or over stretching is known as _______________

Describe and list three uses of each the following thermoplastics Polyethylene terephthalate(PET)

Polypropylene(PP)

Define composite materials.

List types of composite materials.

State the advantages of using composite materials.

Define Ergonomics.

State the factors considered in ergonomics.