Material Prpoerties And timbers

Question 1

Define Thermo polymer

Answer 1

Polymer that can be formed and re-shaped multiple times using heat

Question 2

Define non-ferocious metal

Answer 2

A metal that does not contain iron

Question 3

Define a smart material

Answer 3

A material that reacts to non-external stimulus

Question 4

Define composite

Answer 4

A mixture of two or more dissimilar materials

Question 5

Define hardwood

Answer 5

Timber from deciduous trees

Question 6

Define blended fibre

Answer 6

A blend of synthetic and natural fibres

Question 7

Define modern material

Answer 7

Material that have been engineered to have more improved properties

Question 8

Define papers and boards

Answer 8

Materials made from cellular fibres found in wood or grass

Question 9

Define synthetic fibres

Answer 9

Fires made by humans through chemicals synthetics

Question 10

Define softwood

Answer 10

A timber from coniferous trees

Question 11

Define ferocious metal

Answer 11

A metal containing iron

Question 12

Define thermosetting polymer

Answer 12

Polymer that can only be formed or shaped once

Question 13

Define an alloy

Answer 13

And mixture of two or more metals

Question 14

Define biopolymer

Answer 14

A natural polymer produced by cells of living organisms

Question 15

Define natural fibres

Answer 15

Fibres produced by geological processes or from bodies of plants and animals

Question 16

Define manufactured board

Answer 16

Sheets and materials made from pressing together wood fibres / veneers (with adhesive)

Question 17

Explain the term of mechanical

Answer 17

How a material reacts to external forces

Question 18

Explain the term physical

Answer 18

The observable characteristics of a material

Question 19

List some mechanical properties(10)

Answer 19

Compressive strength💪tensile strength💪sheer strength💪
hardness🚫toughness‼️
corrosion resistance⭕️
elasticity 📿, flexibility, 🤸🏼‍♀️
ductility🛜malleability🖱️

Question 20

List some physical properties (8)

Answer 20

-Thermal conductivity-♨️
-electrical conductivity-⚡️
-durability 👍🏽plasticity🖱️absorbency🧽flammability🔥density🧊
-strength to weight ratio💪

Question 21

Name the five types of manufactured boards

Answer 21

Plywood, aero-ply, Flexi ply, chipboard, MDF

Question 22

Name the six types of hardwood

Answer 22

Oak, Ash, mahogany, teak,birch,beech

Question 23

Name the four types of softwood

Answer 23

Pine, spruce,larch ,cedar

Question 24

Name the three polymers

Answer 24

Thermal polymer
thermosetting polymer
bio polymer

Question 25

Name the three types of woods

Answer 25

Hardwood softwood and manufactured board

Question 26

Name the three types of metals

Answer 26

Ferocious non-ferocious alloy

Question 27

Name the papers & boards

Answer 27

Corrugated card -bleached white card -foam board -duplex board -foil line board

Question 28

Name the three types of textiles (types of fibres)

Answer 28

Natural fibres, synthetic fibres and blended fibres

Question 29

Define compressive strength

Answer 29

The ability to withstand pushing forces without deformation

Question 30

Define tensile strength

Answer 30

The ability to withstand pulling forces without deformation

Question 31

Define sheer strength

Answer 31

The ability to withstand sideways or cutting forces without defamation

Question 32

Define hardness

Answer 32

The ability to withstand dense scratches or abrasive action

Question 33

Define toughness

Answer 33

The ability to withstand sudden impacts without deforming or breaking

Question 34

Define corrosion resistance

Answer 34

The ability to withstand damages from the environment such as air ,water and chemicals

Question 35

Define elasticity

Answer 35

The ability to be stretched or deformed and returned to original shape

Question 36

Define flexibility

Answer 36

The ability to bend without breaking

Question 37

Define ductility

Answer 37

The ability to be stretched into a thin wire and not lose any of its properties

Question 38

Define malleability

Answer 38

They will be shaped or formed without fracturing or cracking

Question 39

Define thermal conductivity

Answer 39

They will allow heat to pass or flow through a material

Question 40

Define electrical conductivity

Answer 40

The ability to allow electricity to pass or flow through a material

Question 41

Define durability

Answer 41

The ability to withstand wear and tear overtime

Question 42

Define plasticity

Answer 42

To be easily shaped or moulded

Question 43

Define plasticity

Answer 43

To be easily shaped or moulded

Question 44

Define absorbency

Answer 44

The abilities to take in water/moisture

Question 45

Define absorbency

Answer 45

The ability to take in water and moisture

Question 46

Define flammability

Answer 46

The ease to which a material can ignite or combust

Question 47

Define density

Answer 47

The mass per volume of a material

Question 48

Define strength to weight ratio

Answer 48

The strength of a material divided by its mass