## Archive for the ‘Uncategorized’ Category

Tuesday, February 6th, 2024

Friday, November 12th, 2021

2021 VCAA Physics Exam Solutions – PDF 100 KB

Thanks to Brendon Beard from Kerang Technical High School for pointing out the following: In Q13 of multiple choice section A, the wave speed is 18 m/s, but the measurements on the wave graph are in cm.  So that makes the wavelength 0.06 and not 6. Frequency is therefore 18/0.06 or 300Hz.  The answer should be C.

Thanks to Philip Noonan for pointing out the following mistakes. In Section B, Q8c The itute solution, 1.04E06 J, appears to express the answer as the area under the graph, alone. Possibly considering the graph as gravitational force (not field) vs distance. Q19a the itute solution does not appear to go and identify the specific energy transition in the atom. That is, either state n=4 to n=3, (and/or mark it on a diagram) as asked in the question.

Wednesday, November 3rd, 2021

2021 VCAA Further Mathematics Exam 2 Solutions – PDF 125 KB

Thanks to Amy Devereaux for pointing out mistakes in DATA 3b, 5b and FINANCE 8c.

Thanks to Darren Fitzpatrick of Beaconhills College for pointing out that Module 4 Q2b should include 0 in the answer.

Tuesday, January 12th, 2021

Thanks to Rasith Welendawe for pointing out that in Q6b dh/dt should have a negative value for draining.

Monday, July 15th, 2019

2020 Specialist Mathematics Year 12 Modeling or Problem Solving Task – PDF 95 KB

Tuesday, December 1st, 2015

Thanks to Michelle Xin for pointing out a discrepancy between itute and VCAA exam report for Multiple Choice Q13. The correct answer is the one provided by VCAA, i.e. choice D.

Thanks to Keshav Ram of JMSS for pointing out a mistake in Section 2 Q1a. Quote: “The implicit differentiation of the given function has been done incorrectly, it is actually 2y(dy/dx), not y(dy/dx) as given in the solutions. That mistake was carried on in the next question too, although ultimately the same answer for dy/dx was obtained.”

Wednesday, November 4th, 2015

Thanks to Lyn Harris for checking and correcting mistakes in the first draft.