OCR AS LEVEL Physics A H156/02 JUNE 2022 FINAL MARK SCHEME - Depth in physics.

OCR AS LEVEL Physics A H156/02 JUNE 2022 FINAL MARK SCHEME - Depth in physics. H156/02 Mark Scheme 6 11. Annotations available in RM Assessor Annotation Meaning Correct response Used to indicate the point at which a mark has been awarded (one tick peIncorrect response Used to indicate an incorrect answer or a point where a mark is lost. AE Arithmetic error Do not allow the mark where the error occurs. Then follow through the workECF if there are no further errors. BOD Benefit of doubt given Used to indicate a mark awarded where the candidate provides an answer examiner feels that sufficient work has been done. BP Blank page Use BP on additional page(s) to show that there is no additional work proviCON Contradiction No mark can be awarded if the candidate contradicts himself or herself in thECF Error carried forward Used in numerical answers only, unless specified otherwise in the mark schnumerical questions may be awarded up to full credit provided they are conWithin a question, ECF can be given for AE, TE and POT errors but not forL1 Level 1 L1 is used to show 2 marks awarded and L1^ is used to show 1 mark awaL2 Level 2 L2 is used to show 4 marks awarded and L2^ is used to show 3 marks awaL3 Level 3 L3 is used to show 6 marks awarded and L3^ is used to show 5 marks awaPOT Power of 10 error This is usually linked to conversion of SI prefixes. Do not allow the mark wthrough the working/calculation giving ECF for subsequent marks if there aSEEN Seen To indicate working/text has been seen by the examiner. SF Error in number of significant figures Where more SFs are given than is justified by the question, do not penalisenecessary will be considered within the mark scheme. Penalised only onTE Transcription error This error is when there is incorrect transcription of the correct data from thbooklet or a previous answer. Do not allow the relevant mark and then follosubsequent marks. XP Wrong physics or equation Used in numerical answers only, unless otherwise specified in the mark schwrong physics even if it happens to lead to the correct answer. ^ Omission Used to indicate where more is needed for a mark to be awarded (what is w H156/02 Mark Scheme 7 Abbreviations, annotations and conventions used in the detailed Mark Scheme (to include abbreviations and sAnnotation Meaning / alternative and acceptable answers for the same marking point Reject Answers which are not worthy of credit Not Answers which are not worthy of credit Ignore Statements which are irrelevant Allow Answers that can be accepted ( ) Words which are not essential to gain credit ___ Underlined words must be present in answer to score a mark ECF Error carried forward AW Alternative wording ORA Or reverse argument General rule: For substitution into an equation, allow any subject – unless stated otherwise in the guidance H156/02 Mark Scheme 8 Question Answer Marks 1 (a) Use a micrometer / caliper (to measure the diameter of the ball) Repeat readings in different directions and average r = (mean) diameter  2 B1 B1 B1 Ignore radius Allow places / points / p(b)