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Design Technology > unit 1 > Flashcards

unit 1 Flashcards

1
Q

what is the 5 types of stresses

A

Tension,Compression,Torsion,Bending,Shear

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2
Q

Tension

A

a pulling force applied to either end o a object

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3
Q

Tensile Strength

A

Ability to resist being pulled apart

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4
Q

Compression

A

When either end of a object is pushed together

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5
Q

Compresive strength

A

The ability to resist being pushed together

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6
Q

Torsion

A

When a material is being twisted

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7
Q

Torsional Strength

A

ability to resist being twisted out of shape

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8
Q

Bending

A

results in compression and tension

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9
Q

Stiffness

A

ability to resist bending

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10
Q

shear

A

when aa force acts perpendicular to the object

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11
Q

Reinforcing

A

way of strengthening a material by adding material to it

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12
Q

what are the 5 types of reinforcing

A

Folding,Bending,Webbing,Lamination,Fabric interfacing

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13
Q

Webbing

A

strong fabric woven into strips from yarns from a synthetic material

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14
Q

Laminating

A

Bonding 2 or more products to improve product strength

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15
Q

Fabric interfacing

A

an additional layer in fabric where extra support is needed

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16
Q

carbon footprint

A

The amount of carbon emitted in a product

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17
Q

ecological footprint

A

measures the impact of a persons life on the natural environment

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18
Q

social footpront

A

a measure of the impact that a companies policies have on its employees

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19
Q

Health and safety executive

A

Organisation which looks after the welfare of employees

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20
Q

Fairtrade

A

a organization which gives farmers a fair price for their products or services

21
Q

finite

A

limited amount

22
Q

non-finite

A

unlimited amount

23
Q

Deforistation

A

decrease in forest area which are lost and used for other purposes

24
Q

what are the 2 types of mining

A

underground, surface

25
Q

negative effects of mining

A

soil erosion , sinkholes , air pollution , water contamination

26
Q

drilling

A

used to tap into natural gas and oil

27
Q

what percent of emissions come from farming

A

15% most from livestock

28
Q

product miles

A

the length a product has travelled to get to the consumer

29
Q

how do local products reduce co2

A

they reduce product miles so in turn it reduces co2

30
Q

Oceanic polution

A

a complex mixture of toxic metals and plastics

31
Q

Atmospheric pollution

A

the presence of undesirable materials in the air. large enough quantities can harm us

32
Q

Primary Recycling

A

Secondhand use of a product without changing or altering the product

33
Q

Secondary Recycling

A

mechanically cutting/altering the product in some way to use it in another way

34
Q

Refuse

A

to deny using a product because it isnt sustainable

35
Q

what are the 6 R’s

A

Recycle, Repair, Reuse, Reduce ,Rethink ,Refuse

36
Q

Rethink

A

to rethink what product you want to buy and to choose a more sustainable one instead

37
Q

Reduce

A

Reducing the amount of waste you produce

38
Q

Reuse

A

reusing a product multiple times for the same purpose

39
Q

Repair

A

repair a product when its broken or worn extending its life

40
Q

Tertiary Recycling

A

Completely breaking down a product into molecules using a chemical process and then turning it into a completely new product

41
Q

job production

A

where items are made individually and each item is finished before the next one is started

42
Q

Batch production

A

where groups of items are made together. Each batch is finished before starting the next block of goods

43
Q

pros/cons of job production

A

pros:
made to spec, high quality
cons:
expensive, labour intensive

44
Q

pros/cons of batch production

A

pros:
flexible
cons:
many small batches could be expensive
additional costs

45
Q

continuous flow production

A

Continuous production is very similar to mass production although the products tend to be made to create stock or standard material forms (primary processing) before final processing or assembling elsewhere.

46
Q

pros/cons continuous flow production

A

pros:
large volume of products
employees can specialize in tasks
cons:
high initial cost
lack of flexibility
bored employees

47
Q

mass production

A

keeps making common products 24/7 and is automated by robots

48
Q

pros/cons mass production

A

pros:
cheap in long term
efficient
cons:
high initial cost
no flexibility

Design Technology (1 decks)

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