Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AS Design Technology > Materials > Flashcards

Materials Flashcards

1
Q

What are two hardwoods?

A

Oak and ash.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Properties of oak:

A
  1. Has an attractive light colour.
  2. Is heavy, dense, contributing to its strength.
  3. Good weather resistance.
  4. But it is a very high-cost hardwood.

High-quality indoor and outdoor furniture.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Properties of ash:

A
  1. Has a more pale and light colour.
  2. Open grain, making it flexible.
  3. Very hard, dense and quite tough.
  4. A lower-cost hardwood.

Used for equipment handles such as for sports equipment or workshop tools.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are two softwoods?

A

Pine and redwood.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Properties of pine:

A
  1. Light colour.
  2. Is lightweight.
  3. Good strength.
  4. Can be quite knotty.
  5. Very affordable.

Used for exterior frame construction, indoor or outdoor flooring and furniture.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Properties of redwood:

A
  1. Has a rich, brown-reddish colour.
  2. Lightweight.
  3. Quite durable.
  4. Good weather resistance.
  5. Low-cost.

Outdoor and indoor furniture like decking, fences, gates.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are three ferrous metals?

A

Low carbon/mild steel, stainless steel and high speed steel.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Properties of low carbon steel:

A
  1. Good tensile strength.
  2. Is quite heavy.
  3. Is malleable and ductile.
  4. Has poor rust resistance.
  5. Relatively low-cost.

Used for mechanical fixings and many car parts.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Properties of stainless steel:

A
  1. Has an attractive, shiny, silvery appearance.
  2. Has high corrosion resistance.
  3. Has high tensile strength.
  4. Is malleable and ductile.
  5. Is more expensive than mild steel.

Used for cookware and kitchenware.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Properties of HSS:

A
  1. High heat and wear resistance.
  2. Is extremely hard.
  3. It is high-cost.

Used for cutting tools such as drill bits and saw blades.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are two non-ferrous metals?

A

Aluminium and copper.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Properties of aluminium:

A
  1. Is a lightweight metal.
  2. Malleable and ductile.
  3. Has rust resistance.
  4. Is a good electrical and heat conductor.
  5. Is relatively low-cost.

Used for exterior framing for vehicles and for packaging.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Properties of copper:

A
  1. Has a unique, reddish appearance.
  2. Highly ductile and easily shapable.
  3. Has rust resistance.
  4. Good electrical and heat conductivity.
  5. Medium-cost.

Used for piping and electronic wires, circuit boards.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are four thermoplastics?

A

Acrylic, nylon, PVC and ABS.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Properties of acrylic:

A
  1. Lightweight.
  2. Easy to cut and shape.
  3. Good impact resistance.
  4. Is flexible.

Used for food packaging, toys and miscellaneous products.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Properties of nylon:

A
  1. Has high tensile strength.
  2. Better temperature resistance.
  3. Good elasticity.
  4. Low friction.

Used in gears, curtain rails, seat belts, ropes, fishnets.

17
Q

Properties of PVC:

A
  1. Very strong.
  2. Is lightweight.
  3. High impact strength.
  4. High chemical resistance.

Piping and cable insulation.

18
Q

Properties of ABS:

A
  1. Is very durable and hard.
  2. High impact resistance.
  3. Lightweight.

Keycaps and printers.

19
Q

Properties of epoxy resin:

A
  1. Excellent adhesive properties.
  2. Very hard, durable and strong.
  3. High heat, electrical and chemical resistance.

Coating by electrical components or as an adhesive for joining wood or metal.

20
Q

What are two thermosetting plastics:

A

Urea formalyde and epoxy resin.

21
Q

Properties of rubber:

A
  1. Highly elastic.
  2. Good wear resistance.
  3. Good shock absorption.
  4. Remains flexible at low temperatures.

Cat tyres, balloons, electrical cable insulation.

22
Q

Properties of silicon:

A
  1. High flexibility and elasticity, even at low temperatures.
  2. Has a high melting point.
  3. Low friction, lubricating properties.

Flexible trays, electronics (silicon chips), toys.

23
Q

What adhesives are used for wood?

A

1.PVA - water based, setting time = 30min - 1hr.

  1. Epoxy resin - toxic, setting time = 30min - 2hr.
24
Q

What adhesives are used for plastic?

A
  1. Cyanoacrylate (super glue) - lightweight applications, toxic, setting time = instantly.
  2. Epoxy resin - toxic, setting time = 30min - 2hr.
25
Q

What adhesives are used for metal?

A
  1. Cyanoacrylate (super glue) - lightweight applications, toxic, setting time = instantly.
  2. Epoxy resin - toxic, setting time = 30min - 2hr.
26
Q

What are three manufactured boards?

A

MDF, plywood, chipboard.

27
Q

What plastics are used for vacuum forming?

A

Only thermoplastics - acrylic, PVC, ABS.

28
Q

What plastic are used for injection moulding?

A

Only thermoplastics - polypropylene, polyethylene, nylon.

29
Q

What metals are used for brazing/hard-soldering?

A
  1. Steel, aluminium, copper.
  2. The filler metal can be a dissimilar metal to the one being used together.
30
Q

What metals are used for gas-welding?

A
  1. Steel, aluminium, copper.
  2. The filler metal can be a dissimilar metal to the one being used together.
31
Q

What are ferrous and non-ferrous metals?

A
  1. Ferrous - metals containing mostly iron and carbon, they are magnetic and will rust.
  2. Non-ferrous - a metal that does not contain iron, non-ferrous metals are not magnetic and do not rust.
32
Q

What are smart materials?

A

A smart materials is a material whose physical properties change in response to an input or change in the environment, such as electricity, pressure, temperature or light.

33
Q

What are hardwoods and softwoods?

A
  1. Hardwood - a wood from deciduous/broad-leafed trees, these trees are generally slow growing and lose their leaves in autumn.
  2. Softwood - a wood from coniferous/cone bearing trees, these trees are generally fast growing and tend to be evergreen.
34
Q

What are thermopolymers and thermosetting polymers?

A
  1. Thermoplastic - a material which can be repeatedly reheated and reshaped, allowing it to be recycled after its initial use.
  2. Thermosetting polymer - a material which when heated undergoes a chemical change, meaning it cannot be reheated and reshaped, even at very high temperatures.
35
Q

What are alloys?

A

An alloy is a metal made of two or more metals, or combining two or more elements, one of which must be metal, alloys can be ferrous or non-ferrous too.

36
Q

What are elastomers?

A

An elastomer is a material which at room temperature can be deformed under pressure and then upon release of the pressure, will return to its original shape.

37
Q

What are composite materials?

A

A composite material is a material comprised of two or more different materials, resulting in a material with enhanced properties.

38
Q

Properties of MDF:

A
  1. No knots, has a very smooth surface
  2. Very hard, high-density
  3. Quite strong, stable
  4. Typically quite heavy
  5. Very low cost
39
Q

Properties of plywood:

A
  1. Very strong and stable in all directions
  2. Lightweight
  3. High flexibility
  4. Quite low cost

AS Design Technology (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions