Mark Scheme Summer 2022 Pearson Edexcel GCSE In Design & Technology (1DT0) 1D: Systems Edexcel and BTEC Qualifications

Mark Scheme Summer 2022 Pearson Edexcel GCSE In Design & Technology (1DT0) 1D: Systems 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) 1D: Systems 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. Pearson: helping people progress, everywhere Pearson aspires to be the world’s leading learning company. Our aim is to help everyone progress in their lives through education. We believe in every kind of learning, for all kinds of people, wherever they are in the world. We’ve been involved in education for over 150 years, and by working across 70 countries, in 100 languages, we have built an international reputation for our commitment to high standards and raising achievement through innovation in education. Find out more about how we can help you and your students at: www.pearson.com/uk June 2022 Question Paper Log Number 71342 Publications Code 1DT0_1D_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 – 1DT0/1D 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 number Answer Additional information Mark 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 wron