Mark Scheme

Mock Set 2

Pearson Edexcel GCE Mathematics Advanced Subsidiary Level in Mathematics Paper 22 8MA0/22 Mechanics

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April 2023

Publications Code 8MA0_22_MS2_MS

All the material in this publication is copyright © Pearson Education Ltd 2023

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.

EDEXCEL GCE MATHEMATICS General Instructions for Marking

1. The total number of marks for the paper is 30.

2. The Edexcel Mathematics mark schemes use the following types of marks:

• M marks: method marks are awarded for ‘knowing a method and attempting to apply it’,

unless otherwise indicated.

• A marks: Accuracy marks can only be awarded if the relevant method (M) marks have been

earned.

• B marks are unconditional accuracy marks (independent of M marks)

• Marks should not be subdivided.

3. Abbreviations

These are some of the traditional marking abbreviations that will appear in the mark schemes.

• bod – benefit of doubt

• ft – follow through

• the symbol will be used for correct ft

• cao – correct answer only

• cso - correct solution only. There must be no errors in this part of the question to obtain

this mark

• isw – ignore subsequent working

• awrt – answers which round to

• SC: special case

• oe – or equivalent (and appropriate)

• dep – dependent

• indep – independent

• dp decimal places

• sf significant figures

•  The answer is printed on the paper

• The second mark is dependent on gaining the first mark

4. For misreading which does not alter the character of a question or materially simplify it,

deduct two from any A or B marks gained, in that part of the question affected.

5. Where a candidate has made multiple responses and indicates which response they wish to

submit, examiners should mark this response.

If there are several attempts at a question which have not been crossed out, examiners should mark the final answer which is the answer that is the most complete.

6. Ignore wrong working or incorrect statements following a correct answer.

7. Mark schemes will firstly show the solution judged to be the most common response

expected from candidates. Where appropriate, alternatives answers are provided in the

notes. If examiners are not sure if an answer is acceptable, they will check the mark

scheme to see if an alternative answer is given for the method used.

General Principles for Mechanics Marking

(But note that specific mark schemes may sometimes override these general principles)

• Rules for M marks: correct no. of terms; dimensionally correct; all terms that need resolving (i.e.

multiplied by cos or sin) are resolved.

• Omission or extra g in a resolution is an accuracy error not method error.

• Omission of mass from a resolution is a method error.

• Omission of a length from a moments equation is a method error.

• Omission of units or incorrect units is not (usually) counted as an accuracy error.

• DM indicates a dependent method mark i.e. one that can only be awarded if a previous specified

method mark has been awarded.

• Any numerical answer which comes from use of g = 9.8 should be given to 2 or 3 SF.

• Use of g = 9.81 should be penalised once per (complete) question.

N.B. Over-accuracy or under-accuracy of correct answers should only be penalised once per complete question. However, premature approximation should be penalised every time it occurs.

• Marks must be entered in the same order as they appear on the mark scheme.

• In all cases, if the candidate clearly labels their working under a particular part of a question i.e.

(a) or (b) or (c),……then that working can only score marks for that part of the question.

• Accept column vectors in all cases.

• Misreads – if a misread does not alter the character of a question or materially simplify it, deduct

two from any A or B marks gained, bearing in mind that after a misread, the subsequent A marks

affected are treated as A ft

• Mechanics Abbreviations

m s-1

1 1

(18 ) 5 15 ( 16) 5 325

2 2

        +  + + +  = V V V

   

18 12

- 5

m s-2