Mark Scheme
Summer 2022
Pearson Edexcel GCSE
In Design & Technology (1DT0)
1C: Polymers
Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We
p
...
Mark Scheme
Summer 2022
Pearson Edexcel GCSE
In Design & Technology (1DT0)
1C: Polymers
Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We
provide a wide range of qualifications including academic, vocational, occupational and specific
programmes for employers. For further information visit our qualifications websites at
www.edexcel.com or www.btec.co.uk. Alternatively, you can get in touch with us using the
details on our contact us page at www.edexcel.com/contactus.
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www.pearson.com/uk
June 2022
Question Paper Log Number 71341
Publications Code 1DT0_1C_2206_MS
All the material in this publication is copyright
© Pearson Education Ltd 2022
General Marking Guidance
• All candidates must receive the same
treatment. Examiners must mark the first candidate in
exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates
must be rewarded for what they have shown they can do
rather than penalised for omissions.
• Examiners should mark according to the mark scheme
not according to their perception of where the grade
boundaries may lie.
• There is no ceiling on achievement. All marks on the mark
scheme should be used appropriately.
• All the marks on the mark scheme are designed to be
awarded. Examiners should always award full marks if
deserved, i.e. if the answer matches the mark
scheme. Examiners should also be prepared to award
zero marks if the candidate’s response is not worthy of
credit according to the mark scheme.
• Where some judgement is required, mark schemes will
provide the principles by which marks will be awarded
and exemplification may be limited.
• When examiners are in doubt regarding the application
of the mark scheme to a candidate’s response, the team
leader must be consulted.
• Crossed out work should be marked UNLESS the
candidate has replaced it with an alternative response.
Pearson Education Limited. Registered company number 872828
with its registered office at 80 Strand, London, WC2R 0RL, United Kingdom
Component 1 mark scheme – 1DT0/1C
Section A – Core content
Question
number
Answer Additional information Mark
1 (a) (i) Any one property from:
Malleable (1)
Ductile (1)
Excellent strength to weight ratio
(1)
Lightweight / low density (1)
Waterproof / Impermeable (1)
Resistance to corrosion / won’t
rust (1)
Food safe / non-toxic (1)
Do not accept ‘can be
recycled’
Do not accept ‘durable’
(1)
Question
number
Answer Additional information Mark
1 (a) (ii) Any one property from:
Elasticity / mouldability (1)
Soft (1)
Insulator (1)
Permeable / breathable (1)
Insulator / heat insulator (1)
Do not accept ‘durable’ (1)
Question
number
Answer Mark
1 (a) (iii) Any one property from:
Transparent / see through (1)
Translucent / semi translucent (1)
Smooth surface (1)
(1)
Question Answer Additional information Mark
number
1 (a) (iv) Any one property from:
Flexible / flexibility / bendable (1)
Good tensile / compressive
strength (1)
Moisture / water resistance (1)
Elasticity (1)
Tough / impact resistance (1)
Do not accept ‘durable’ (1)
Question
number
Answer Mark
1 (b) Any one disadvantage of urea formaldehyde (UF) for the 3-pin plug
(1) and a linked justification of that disadvantage (1)
UF is brittle (1) therefore if it gets banged / knocked it can break
/ shatter / splinter (1)
UF is a thermosetting plastic (1) therefore it cannot be recycled if
it breaks / is not biodegradable (1)
UF can melt / burn at high temperatures (1) therefore it becomes
a hazard / danger (1)
(2)
Question
number
Answer Additional guidance Mark
1 (c) A calculation that includes:
correct calculation of ratios
50 / (13 + 7) = 2.5
(1)
correct answer
2.5 x 13 = 32.5kg
(1)
Award full marks for
correct numerical
answer without
working.
Allow for ECF if
candidate gets part
of transposition
wrong.
(2)
Question Answer Additional guidance Mark
number
2 (a) Any one other hardwood from:
Oak (1)
Beech (1)
Ash (1)
Birch (1)
Jelutong (1)
Any other appropriate hardwood
Do not accept
balsawood or
mahogany
(1)
Question
number
Answer Mark
2 (b) Any one working property of mahogany that makes it an
appropriate choice of material (1) and a linked justification of that
working property (1)
It is hard / durable (1) which means that it will withstand wear as
the books are placed in and taken out of the holder (1)
It is tough (1) which means that it is capable of being knocked /
bumped / dropped without damaging (1)
It has close / tight grain (1) which means it does not damage the
book when lifted in or out (1)
(2)
Question
number
Answer Mark
2 (c) Any one advantage for the manufacturer (1) and a linked
justification of that advantage (1)
They do not hold lots of stock (1) which means they do not need
to pay for storage space / tie up finance / not susceptible to
falling demand (1)
They could change the type of wood used / easily change the size
/ change design (1) which means they can respond to individual
customers’ needs / wants / size of book (1)
Each one will be unique / exclusive (1) which means the
manufacturer can charge a higher price (1)
No excess products / stock (1) which means the manufacturer
will not have to reduce the price to get rid of stock (1)
Happier / more engaged workforce (1) therefore higher quality
products manufactured / greater staff retention (1)
(2)
Question Answer Additional Mark
number guidance
2 (d) A calculation that includes:
correct calculation of the total length of
timber required
(2 x 30) + 40 = 100cm
(1)
correct calculation of volume
100cm x 5cm2
= 500cm3
(1)
correct conversion of units from cm3 tom
3
500cm3
= 500/1,000,000 or 106
= 0.0005m
3
(1)
correct calculation of final cost
0.0005 x 1200 = £0.6 or 60 pence
(1)
Award full marks
for correct
numerical answer
without working.
Allow for ECF if
candidate gets
part of
calculation
wrong.
Special case:
Award a max of 3
marks if the
factor of 6 unit
conversation is
incorrect or not
evident; for
example: £6, £60,
£6000, £600000
(4)
Question
number
Answer Mark
3 (a)
Light emitting diode / LED (1)
(Only answer)
(1)
Question
number
Answer Mark
3 (b) Any one reason for using a bevel gear (1) and a linked reason for the
use (1)
To convert rotary motion through 900
(1) so it will take up less
space inside the drill (1)
To increase / decrease rotary speed (1) which means that the
chuck can be made to turn faster / slower than the motor speed
(1)
To increase the torque (1) which means it will be able to drill
harder / denser materials (1)
(2)
Question
number
Answer Additional
guidance
Mark
3 (c) A calculation that includes:
Correct calculation of the compound gear
ratio
(40 / 20) x (40 / 20) = 4
(1)
Correct calculation of driven RPM
4 x 400 = 1600 RPM
(1)
Alternative method:
(40 / 20) = 2 x 400 = 800 (1)
(40 / 20) = 2 x 800 = 1600 (1)
Special case:
If only one step
has been
calculated, e.g.
40 / 20 = 2 x 400
= 800 (1)
If no working
out and answer
is 800 (0)
(2)
Question
number
Answer Mark
3 (d) Any one benefit of using a battery (1) and a linked justification of the
benefit (1)
Portability / convenience (1) therefore the user does not need to
be near a power supply / plug / ease of use (1)
No power leads (1) which means improved safety a
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