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NOTE: Thanks to Yaodong Tang who pointed out that the increase in capacitance will only compensate and may make the AVERAGE Voltage of output 12V. However, to fully regulate this voltage the MINIMUM Voltage coming to be regulated by Zener has to be 12V. In the previous case where capacitor is changed, it will never make the minimum voltage across Zener 12V. So the two changes should be, put a voltage regulator of 12V in parallel with the capacitor. 2. Increase the AC input voltage so that the minimum voltage to be regulated is 12V.

NOTE: The correct solution to Q1 Detailed study 1 is ‘Earth, interference, no’.

NOTE: For Electronics/photonics Q2, the correct period is 1 ms.

VCAA Physics Examination 2 Solutions - PDF 141KB

Thanks to Jerard Koon for pointing out the correct answer to Q1c of Detailed Study 1 - Synchrotron is ‘electric fields in the straight sections’.

Free trial physics exams

Physics Trial Examination 1 - PDF 192KB
Physics Trial Examination 1 Solutions - PDF 117KB

NOTE: Thanks to Li Mei for pointing out that in 2007 Physics Trial Exam 1 Motion Q16, the question asks for the speed of Tom J relative to Tom. Answer gives the speed of Tom J relative to ground. When Tom pushes Tom J, Tom moves backwards too so the speeds of both should be added together, giving 0.32 ms-1.

Physics Trial Examination 2 - PDF 229KB
Physics Trial Examination 2 Solutions - PDF 151KB

2006

Free VCAA physics exams

VCAA Physics Examination 1 Solutions - PDF 159KB

VCAA Physics Examination 2 Solutions - PDF 141KB
NOTE: Thanks to Huy Pham for pointing out that in 2006 VCAA Physics Exam 2 Photonics Q9 the correct answer is B.

Free trial physics exams

Physics Trial Examination 1 - PDF 186KB
Physics Trial Examination 1 Solutions - PDF 127KB

Physics Trial Examination 2 - PDF 204KB
Physics Trial Examination 2 Solutions - PDF 132KB