Materials

Question 1

Strength

Answer 1

Ability for a product to withstand force without breaking or deforming

Question 2

Toughness

Answer 2

Ability to withstand sudden impacts without fracturing

Question 3

Hardness

Answer 3

Ability to resist scratching abrasion or wear

Question 4

Stiffness

Answer 4

Ability for a product to resist deformation with applied force

Question 5

Thermoplastic

Answer 5

Can be heated and cooled repeatedly without compromising the properties of the material. Any waste can be recycled

Question 6

Thermoset

Answer 6

Like an egg it can be heated or reshaped, however is stronger and more heat resistant

Question 7

Additives

Answer 7

Mixed with plastic to make it last longer be cleaner, safer more colourful e.g.

Question 8

Epoxy Resin (ER)

Answer 8

Thermoset. Low Shrinkage, Strong and excellent adhesive qualities. Normally used for bonding application and surface coatings.

Question 9

Melamine Formeldahyde (MF)

Answer 9

Thermoset. Tasteless, waterproof, ouderless, scratch resistant and an electrical insulator. Normally used on worktops, buttons and clothing.

Question 10

Polyester Resin (PR)

Answer 10

Thermoset. Can be flexible formed without pressure or heat, hard and an electrical insulator. Normally used on car body parts.

Question 11

Urea Formeldahyde (UF)

Answer 11

Thermoset. Electrical Insulator, good adhesive properties, hard and stiff. Normally used in electrical fittings

Question 12

Acrylonitrile Butadiene Styrene (ABS)

Answer 12

Thermoplastic. Chemical Resistant, strong and high surface finish

Question 13

Cellulose Acetate

Answer 13

Thermoplastic. Flexible, hard, light and transparent

Question 14

Polyamide (PA) Nylon

Answer 14

Thermoplatic. Durable, easily machined and self lubricating and tough

Question 15

Polyethylene (HDPE)

Answer 15

Thermoplastic. Chemical Resistant and tough

Question 16

Polyethylene (LDPE)

Answer 16

Thermoplastic. Stiff, hard and easily machined

Question 17

Polypropylene (PP)

Answer 17

Chemical Resistant and Light

Question 18

Polystyrene (PS)

Answer 18

Light stiff water resistant

Question 19

Polyvinyl Chloride (Plasticised)

Answer 19

Soft, flexible and electrical insulator

Question 20

Polyvinyl Chloride (uPVC)

Answer 20

Abrasive Resistant and water and weather resistant

Question 21

Ferrous Metal

Answer 21

Contain Iron. Inexpensive, but corrosive and needs maintenance or a surface finish

Question 22

Non-Ferrous

Answer 22

Resistant to corrosion as it has no steel

Question 23

Alloys

Answer 23

Mixing two or more materials with one containing metal. Can give it better qualities

Question 24

Cast Iron

Answer 24

Corrosive, strong and self-lubricating

Question 25

Mild Steel

Answer 25

Strong, Tough reasonably malleable, corrosive

Question 26

High Carbon Steel

Answer 26

Malleable, corrosive

Question 27

Stainless Steel

Answer 27

Tough, ductile and corrosion resistant

Question 28

Tin

Answer 28

Soft, ductile and corrosion resistant

Question 29

Lead

Answer 29

Heavy, malleable, soft and corrosion resistant

Question 30

Aluminium

Answer 30

Soft, good strength to weight ratio, light and high resistance to corrosion

Question 31

Copper

Answer 31

Good heat/ electrical condictor, high resistance to corrosion.

Question 32

Brass

Answer 32

Good heat/ electrical condictor, high resistance to corrosion and harder than copper

Question 33

Bronze

Answer 33

Resistant to corrosion

Question 34

Zinc

Answer 34

Soft, maluable and high resistance to corrosion

Question 35

Hardwood

Answer 35

Deciduous trees, slow-growing take more maintenance

Question 36

Softwood

Answer 36

Grow faster, cheaper and less maintenance

Question 37

Manufactured Board

Answer 37

Man Made, normally made from waste products, availability in large sheets and ease of manufacture

Question 38

Oak

Answer 38

Hardwood, Strong, Durable, Hard, Tough and will stain steel

Question 39

Mahogany

Answer 39

Hardwood, Strong, Easy to Work and Durable

Question 40

Beech

Answer 40

Hardwood, Strong, tougher than oak, straight-grained

Question 41

Scots Pine

Answer 41

Softwood, Straight grained, fairly strong and good workability

Question 42

Red Cedar

Answer 42

Softwood Light, Soft, Weak and weather durable

Question 43

Spruce

Answer 43

Softwood Non Durable, Straight Grained, Light and Good Elasticity

Question 44

Plywood

Answer 44

Stable, Strong, and Easy to Machine

Question 45

Hardboard

Answer 45

Weak, brittle, hard on one side soft on the other

Question 46

MDF

Answer 46

Easily Machined, Moulded and Painted

Question 47

Chipboard

Answer 47

Realtiveley weak and inexpensive

Question 48

Blockboard

Answer 48

Stiff and Heavy