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product design > Year 10 Assessment Revision > Flashcards

Year 10 Assessment Revision Flashcards

1
Q

define a composite material.

A

a material made from two or more materials with different properties

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2
Q

how do you calculate RPM if the driver gear is larger?

A

multiply driver revs by multiplier

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3
Q

How do you calculate RPM if the driver gear is smaller?

A

divide driver gear revs by multiplier

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4
Q

what does sustainable mean?

A

not causing permanent damage to the environment and not using up fossil fuels

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5
Q

Name a sustainable textile example

A

paper
cotton
softwood from ethical sources

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6
Q

name the 4 linkages

A

reverse motion linkage
parallel motion linkage
crank and slider linkage
bell crank linkage

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7
Q

explain reverse motion linkage

A

the direction of movement in one rod is reversed in the other

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8
Q

explain parallel motion linkage

A

rods are parallel to each other. Top rod moves left. bottom rod moves right.

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9
Q

explain crank and slider linkage

A

the rods move forwards and backwards in slider

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10
Q

explain bell crank linkage

A

it allows horizontal movement to be converted to vertical movement and vice versa

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11
Q

what is a hardwood?

A

usually deciduous, tight grain, dense and expensive wood

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12
Q

what is a softwood?

A

fast growing, evergreen & cheap wood

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13
Q

hardwood examples

A

oak
beech
balsa
ash

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14
Q

softwood examples

A

pine
larch
spruce

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15
Q

what is crowd funding?

A

it involves using websites to promote an idea. Backers choose to invest to help fund the idea. Backers get some advantages like:
free gifts
discounts
percentage share of the company

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16
Q

what is fair trade?

A

it makes sure producers get a fair price.
fair trade producers have to meet certain standards that benefit:
workers
the environment
producers

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17
Q

Define material toughness

A

the ability of a material to absorb energy and not rupture/ fracture

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18
Q

define rotary motion

A

follows a circular path around a fixed point

example = bicycle wheel

19
Q

define linear motion

A

in a straight line in one direction

example = train

20
Q

define oscillating motion

A

occurs when an object swings from one side to the other from a fixed point
example = pendulum clock

21
Q

define reciprocating motion

A

a repetitive motion from one side to the other

example = piston (in an engine)

22
Q

what is a microcontroller?

A

an integrated circuit. It can be programmed to perform different processing functions

23
Q

what are some advantages of a microcontroller?

A

size of circuit is reduced
can be reprogrammed many times
add to flexibility by having pins for connecting several input and output devices

24
Q

what are some disadvantages of a microcontroller?

A

often cost more
programming software and hardware required
language of system must be learned

25
Q

what is planned obsolescence?

A

when a product is designed to become useless quickly

example = disposable razor or phones

26
Q

what do the 6 Rs do?

A

they reduce the impact of a new product on the environment

27
Q

Name the 6 Rs

A 
Repair
Reuse
Recycle
Rethink
Reduce
Refuse
28
Q

define Reuse

A

passing on a product e.g. tyre for a swing

29
Q

define Rethink

A

thinking about the design from an environmental perspective

30
Q

what are surface treatments?

A

they change the properties of materials

31
Q

name 4 surface treatments

A

dip coating
powder coating
tanalising
flame retardance

32
Q

what does dip coating do?

A

creates a soft, smooth finish

used for wire racks and tool handles

33
Q

what does powder coating do?

A

creates an even coat and almost no waste

34
Q

what does tanalising do?

A

prevents insect attacks and wood decay

used for outdoor wood like fences

35
Q

what does flame retardance do?

A

makes a fabric less likely to catch fire

used for workwear

36
Q

name three benefits of printing

A
  • can be done in small or large quantities
  • can easily repeat designs
  • actual printing process is quick
37
Q

name three benefits of injection moulding

A
  • fast production at a high consistency
  • hardly any labour costs
  • little post production scrap
38
Q

name three benefits of die cutting

A
  • manufacturing techniques are the same for all materials
  • parts can be removed from material with ease
  • fast and continuous production
39
Q

name three materials and their modifications

A

wood - seasoned
metals - annealising
polymers - addition of UV stabilisers

40
Q

what’s the purpose of seasoning wood?

A

reduces moisture therefore makes it stronger

41
Q

why are metals annealised?

A

heating then slowly cooling a metal makes it more malleable

42
Q

Why are UV stabilisers added to polymers?

A

to prevent discolouration of polymers left outside

43
Q

name benefits of templates to do with quality, accuracy and speed

A
  • Identical shapes
  • Products are consistent
  • accurate components
  • can check components against templates
  • quicker
  • easier
44
Q

name benefits of jigs to do with quality, accuracy and speed

A
  • guides tools
  • components are consistent
  • specifically made for a particular job
  • minimal measuring
  • reduces effort
  • saves time

product design (4 decks)

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