Hi everyone,
I have printed all the VCAA exams from 2002. However it looks like there is barely any relevant questions. From which year would you recommend starting VCAA exams?
Thanks
For myself, the real point of doing practice exams is to simulate the real exam. As such, since all the exams before 2017 used a completely different structure, I haven't been doing any of them. I have only been doing exams from 2017 onwards and have only done company exams so far as I am saving the VCAA ones till last. You should be able to get yourself some relevant company exams from your teacher.
In Terms of the earlier exams, they are still useful, however moreso as a source of practice for content knowledge and lesser for doing as a timed exam and I have been relevant questions from these exams mainly through my checkpoint book throughout the year.
So I would recommend sticking to the 2017 and onwards exams for timed exams, and using those older exams just for practicing content knowledge if you need it. However, that is just my opinion and other may beg to differ.
A am struggling with an approach towards area under the graph questions.
I feel like although i seem to get them right, I lack a structure or approach to finding what the area of the graph actually means
Here is a list of all the relevant area under the graphs that I can think of
- Area under a velocity time graph = displacement/distance (note that if the velocity time graph goes in the positive and the negative, the displacement is given as the magnitude of the area made by the positive velocity - the magnitude of the area made by the negative velocity, and the distance is given by the magnitude of the area made by the positive velocity + the magnitude of the area made by the negative velocity)
- Area under acceleration-time graph = velocity
- Area under force-time graph is the impulse
- Area under a force extension graph (for a spring) = change in spring potential energy
- Area under a gravitational force-radius graph = change in gravitational potential energy
Hopefully this makes sense, and if I have missed any graphs you should know, hopefully others can add them.