1. PHYSICS EXAMINATIONS – 2013 Bruce Walsh Chief Assessor

2. REMINDERS  Study design and textbooks  Examiners report  VASS system  SSMS  On line marking

3. GENERAL ADVICE  Mark allocation  Writing implements  Multiple attempts  Logical set out of working

4. GENERAL ADVICE  Explanations must address specific question. Writing everything can lead to contradictions. Dot points good. Diagrams and formulae can help.  Show working  Use unit in answer box

5. GENERAL ADVICE  Show numbers substituted into formulae  Formulae (including derived) must be correct  Calculators – sci mode, no truncation  Rounding

6. GENERAL ADVICE  Answers as simplified decimals  Significant figures  Vectors should originate from point of application  Realistic answers AAAA

7. SPECIFIC CONCERNS  Vectors in Newton’s second & constant acceleration equations  Connected bodies  Energy conversion and conservation  Unit conversions  More complex projectile motion

8. SPECIFIC CONCERNS  Series circuits  Confusion with Faraday’s and Lenz’s laws  Understanding of flux and EMF  Photoelectric effect  Path difference in interference  Distinction between matter & electromagnetic radiation

9. 2013 2012 (June) 2012 (Nov) Students 704170827082 Mean 54%63%60% Median 54%66%62% Std deviation 24%23%22% STATISTICS

10. STATISTICS

11. SCALING GRADE2013(%) 2012 Jun 2012 Nov A+869189 A768482 B+657773 B536862 C+425750 C324640 D+223631 D142822 E+72012 E4119

12. 1b) 40%

13. 2b) 27%

14. 5b) 43%

15. 6b) 43%

16. 6b) 43% cont

17. 6c) 15%

18. 6c) 15% cont

19. 7a) 40%, 7b) 36%

20. 7c) 41%

21. 8a) 49%, 8b) 38%

22. 12b) 43%

23. 15d) 35%

24. 17b) 45%, 17c)27%, 17d) 24%

25. 17b) 45%, 17c)27%

26. 17d) 24%

27. 20a) 37%, 20b) 44%

28. 21a) 41%, 21b) 33%, 21d) 26%

29. 21a) 41%, 21b) 33%, 21d) 26% cont

30. 22a) 47%, 22c) 32%

31. 23a) 35%, 23b) 37%

32. PROBLEM AREAS DETAILED STUDIES DETAILED STUDYDIFFICULT QUESTIONS (<60% correct) Relativity2,3,6,7,8,10,11 Mat & Struct5,7,8,9,10 Electronics2,3,4,6,7,8,10,11 Synchrotron2,3,7,8,10 Photonics1,3,7,9,10,11 Sound6,7,11