Physics Examiner Report June 2003

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GCE

Examiners’ Report

Edexcel GCE
Physics (8540/9540)
June 2003

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June 2003
Publications Code UA013910
All the material in this publication is copyright
© London Qualifications Ltd 2003

CONTENTS
___________________________________________________________________ Page
Unit PHY1 Report .....................................................................................................1 Unit PHY2 Report .....................................................................................................3 Unit PHY3/01 (Topics) Report ..................................................................................5 Unit PHY3/02 (Practical Tests) Report .....................................................................7 Unit PHY4 Report ....................................................................................................11 Unit PHY5/01 Report ..............................................................................................15 Unit PHY5/02 (Practical Tests) Report ....................................................................17 Unit PHY6 (Synoptic) Report ...................................................................................21 Grade Boundaries and Statistics .............................................................................23

London Qualifications Ltd holds the copyright for this publication. Examiners’ Reports may be obtained from Edexcel Publications.

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Further copies of the

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EXAMINERS’ REPORTS
Introduction
In the theory papers (Units PHY1 – PHY5) there are two skills being assessed: ·
·

AO1
AO2

Knowledge with understanding
Application of knowledge and understanding, synthesis and evaluation

Further elucidation of these is given on pages 5 – 6 of the Specification. In formulating their answers to particular questions candidates should bear these skills in mind. In certain responses, direct quotation of theory, however correct, will only gain full credit when it is applied to the situation described in the question. Some questions expect interpretation of the information given in the stem. Again, full credit will only be gained when the candidate’s response specifically addresses the stem – the general quotation of ‘bookwork’ is not what is expected.

6731 Unit Test PHY1
Maximum mark
Mark range
Mean mark
Standard deviation

60
0 - 59
32.7
11.9

When reading through and checking their answers, candidates should ensure that these are sufficiently precise, are not ambiguously worded and answer the question posed. Qu.1 A surprisingly large number of candidates, having drawn correct vector diagrams, calculated the force rather than using their diagrams to measure it (the number of significant figures being the ‘give-away’). Many candidates used the wrong diagonal, giving the force as (about) 11 N. Candidates’ success with identifying vectors was noticeably centre specific. Qu.2 Those who selected u2 = u2 + 2as were generally successful. Those who tried to apply other equations of motion generally did not realise that two formulae would be needed and stalled half-way through the calculation.

Weaker candidates used acceleration =
velocity/distance. The common error in calculating tension was to use an incorrect value for mass. A surprisingly large number of candidates omitted the assumption, thereby not gaining this mark. In explaining why the tension must be less than the weight many candidates tried...
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