5 11969.02 Question 4 • Ray box and suitable power supply • Single slit • Mirror and holder • 30 cm ruler • Rectangular glass block (NB: a block with a white face is not suitable for this experiment) • Sticky label 11969.03 ADVANCED SUBSIDIARY (AS) General Certificate of Education 2019 CONFIDENTIAL INSTRUCTIONS Physics Assessment Unit AS 3A Practical Techniques and Data Analysis [SPH31] FRIDAY 3 MAY 2 11969.03 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 Subject 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 Ext 2270) to confirm that CCEA has received your e-mail. 3 Practical Assessment AS 3A The AS 3A Practical Techniques Assessment is a test of practical skills comprised of 4 short 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 (Short practical test) 12 minutes Changeover and practical write-up 2 minutes Q2 (Short practical test) 12 minutes Changeover and practical write-up 2 minutes Q3 (Short practical test) 12 minutes Changeover and practical write-up 2 minutes Q4 (Short practical test) 12 minutes Changeover and practical write-up 2 minutes End of test write-up 4 minutes At the end of each 12 minute period, candidates must stop using the apparatus. During each 2 minute changeover period candidates may write up anything they have not completed however they will not have access to the apparatus. At the end of the test a 4 minute period is provided for candidates to complete their answer to any question, however they will not have access to the apparatus. 3 11969.03 4 After the Practical Assessments When the individual exam sessions have finished, please return the AS 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.