PHYSICS EXAMINATIONS – 2013
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Transcript of PHYSICS EXAMINATIONS – 2013
PHYSICS EXAMINATIONS – 2013
Bruce WalshChief Assessor
REMINDERS
Study design and textbooks
Examiners report
VASS system
SSMS
On line marking
GENERAL ADVICE Mark allocation
Writing implements
Multiple attempts
Logical set out of working
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
GENERAL ADVICE Show numbers substituted into
formulae
Formulae (including derived) must be correct
Calculators – sci mode, no truncation
Rounding
GENERAL ADVICE Answers as simplified decimals
Significant figures
Vectors should originate from point of application
Realistic answers
A
SPECIFIC CONCERNS Vectors in Newton’s second & constant
acceleration equations
Connected bodies
Energy conversion and conservation
Unit conversions
More complex projectile motion
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
2013 2012 (June)
2012 (Nov)
Students 7041 7082 7082Mean 54% 63% 60%
Median 54% 66% 62%Std
deviation 24% 23% 22%
STATISTICS
STATISTICS
2005 Jun
2005 Nov
2006 Jun
2006 Nov
2007 Jun
2007 Nov
2008 Jun
2008 Nov
2009 Jun
2009 Nov
2010 Jun
2010 Nov
2011 Jun
2011 Nov
2012 Jun
2012 Nov
2013 Nov
0
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MEAN %
SCALINGGRADE 2013(%) 2012 Jun 2012 Nov
A+ 86 91 89A 76 84 82
B+ 65 77 73B 53 68 62
C+ 42 57 50C 32 46 40
D+ 22 36 31D 14 28 22
E+ 7 20 12E 4 11 9
1b) 40%
2b) 27%
5b) 43%
6b) 43%
6b) 43% cont
6c) 15%
6c) 15% cont
7a) 40%, 7b) 36%
7c) 41%
8a) 49%, 8b) 38%
12b) 43%
15d) 35%
17b) 45%, 17c)27%, 17d) 24%
17b) 45%, 17c)27%
17d) 24%
20a) 37%, 20b) 44%
21a) 41%, 21b) 33%, 21d) 26%
21a) 41%, 21b) 33%, 21d) 26% cont
22a) 47%, 22c) 32%
23a) 35%, 23b) 37%
PROBLEM AREASDETAILED STUDIES
DETAILED STUDY DIFFICULT QUESTIONS(<60% correct)
Relativity 2,3,6,7,8,10,11Mat & Struct 5,7,8,9,10Electronics 2,3,4,6,7,8,10,11Synchrotron 2,3,7,8,10Photonics 1,3,7,9,10,11Sound 6,7,11