3 13670.04 Question 1 Requirements • Pendulum bob, string and split cork • Retort stand (height at least 75 cm) • Clamp and boss × 2 • Stopclock to 0.01 s • Metre rule • G clamp Question 2 Requirements • 1000 F capacitor • 22 k resistor • Masking tape • Variable Power Supply to supply 5V D.C. • Resistance substitution box with 10 k, 22 k, 47 k, 100 k and 220 k values. E.g. Philip Harris B8H27234 • Digital Voltmeter 0–20 V to 0.01 V • Connecting leads (approx. 9) • Stopclock to 0.01s • Component holders × 2 • Sticky labels • Two way switch 13670.13 RRR ADVANCED General Certificate of Education 2023 CONFIDENTIAL INSTRUCTIONS Physics Assessment Unit A2 3A Practical Techniques and Data Analysis [APH31] FRIDAY 12 MAY, MORNING 2 13670.13 RRR 1 Confidential Instructions These instructions will give detailed guidance on setting up and testing the apparatus and materials to be used. Again, information contained within the Confidential Instructions must not be relayed to candidates under any circumstances. If at this point, centres find that the testing process produces results different to those specified in the Confidential Instructions, they must contact the CCEA Science Officer (ggray@ccea. org.uk) immediately. 2 Final Apparatus Testing The practical assessment question paper will be made available to the Head of Physics two working days before the timetabled starting time so that teachers and technicians can carry out a final test on the experiments. If on checking the apparatus gives unexpected results, the CCEA Physics Subject Officer should be contacted immediately (ggray@ccea.org.uk), if the problem cannot be resolved. Then the centre must e-mail the CCEA Physics Subject Officer stating the centre name and number, the specific nature of the problem and the range of anomalous results produced. CCEA will respond by acknowledging receipt of the e-mail. If you do not receive a response within 24 hours, please contact the CCEA Physics Subject Officer by telephone (028 90261200) to confirm that CCEA has received your e-mail. 3 Practical Assessment A2 3A The A2 3A Practical Techniques Assessment is a test of practical skills comprised of 2 experimental tests. The duration of the assessment is 1 hour. Some of this time will be set aside for supervisors to re-set the apparatus ready for the next candidates. The assessment should be run as a circus of experiments with candidates moving to the next experiment at the designated time. The assessment should be timed as follows: Questions Time Q1 (practical test) 26 minutes Changeover and practical write-up 2 minutes Q2 (practical test) 26 minutes Changeover and practical write-up 2 minutes End of test write-up 4 minutes At the end of the 26 minute period, candidates must stop using the apparatus. During each 2 minute changeover period candidates may continue with their write up, however they will not have access to the apparatus. At the end of the test a 4 minute period is provided to complete their answer to any question, but will not have access to the apparatus. 4 After the Practical Assessments When the individual exam sessions have finished, please return the A2 3A practical scripts together with the corresponding advice notes to the examinations officer (EO). We will collect these by the day after the examination. If we don’t, please contact us immediately to arrange another time for collection. Where the centre finds that a candidate may have been disadvantaged because the apparatus did not function as intended, the supervising teachers should make a report to the EO. The EO will forward the confidential report on the issue and the candidates affected to the centre support section at CCEA for special consideration. Candidates should be identified by their examination number. IMPORTANT NOTICE Centres are urged to order items needed for the Physics Practical Tests from the suppliers as soon as possible.