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  1. Q

    4 unit content for uni

    As someone who only did extension 1 would it be worth it to look over some 4 unit concepts in preparation for uni maths? Specifically im going into engineering and was thinking of covering (very basically) the mechanics and 3D vectors part of the syllabus and maybe matrices from victoria or...
  2. Q

    Experiment/prac questions in exam

    Is there the possibility of getting a question in the exam for designing a practical investigation, like ester/reflux in chem? I haven't encountered any in past papers but can never be too sure. I only ever did the pendulum one so if there's stuff about using a cathode ray tube or solenoid or...
  3. Q

    Saponification/industrial processes/synthesis/etc. q.s

    Hey does anyone know any papers that have some good written response questions for saponification or industrial processes or chemical synthesis & design or literally any of those extra long written questions? Would be extremely helpful thanks very much
  4. Q

    Question about required working

    I've been using the new casio for the past few months When I'm finding an unknown exponent am I still gonna have to show the marker I know how to do a change of base or can I just plonk down the answer with a unique base log?
  5. Q

    Ampersand in exams

    This got posted as an exemplar band 5/6 mod C response on the NESA website. They have used "&" repeatedly. Probably still not gonna use ampersands myself, but just a bit perplexed by this.
  6. Q

    Abbreviations in exam

    Can I use abbreviations in exams? Only if I specify first? E.g Human resource management (HRM) is a key business function… HRM is essential for business success. Would you limit these to the more commonly used ones or can I abbreviate anything which I’ll use often? This would be particularly...
  7. Q

    Spectra q.

    Correct answer is D. Why is this not B (V)? Wouldn't no shift at all indicate it's closer than the smallest redshift?
  8. Q

    Question

    Got this in a 2 unit past paper, would I be awarded marks if I used a u-sub or do I have to do a advanced-syllabus method which I am completely stumped on someone please remind me
  9. Q

    Showing working

    Might be a stupid question but is it absolutely necessary to show the whole intended process for something like a 2-marker? i.e. For a product rule differentiation, stating u(dv/dx)... formula, then substituting, factorising, etc. OR will 2 lines, one substituted into product rule and last...
  10. Q

    Imaginative Responses for module c

    Hey all can anyone give me a few pointers on how to begin and write a decent imaginative response for COW? Our class focused on more discursive and persuasive responses so I'm lacking in knowledge of how to do a creative and in a bit of a predicament if worst comes to worst and that's the only...
  11. Q

    Diagrams in exam section 3

    Hello all I was wondering how important a diagram in the business report is and what exactly a good diagram would look like. Most sample answers I've seen include a flowchart sorta thing, I'm guessing that including one would probably get you 1-2 marks extra which you otherwise wouldn't? I'm...
  12. Q

    Anion identification w/precipitation

    My textbook reckons that adding silver nitrate with with dilute nitric acid to a solution containing sulfate or phosphate won't cause a precipitate. How does this work if Ag3PO4 and Ag2SO4 are both so insoluble? Is it some interaction with the acid?
  13. Q

    Mod 7/8 question confirmation

    If the voltage of a vapour lamp providing a emission spectrum was increased, what would happen to light emitted? I'm fairly sure that it would only increase light intensity: more photons of the particular emission spectra produced. There should be no change in frequency of emitted light. If...
  14. Q

    Sequences and Series Question

    Sum of the first four terms of a geometric series is 468. Sum of the next four terms (S8 - S4) is 292500 . Find first term and common ratio Having trouble solving for r, thanks in advance
  15. Q

    Projectile motion question

    Hello friends, is it possible to find initial velocity purely from launch angle and final horizontal displacement?
  16. Q

    Question about HSC scaling

    How does a class of one scale? From what I understand if a class is made up of a single person their HSC mark is pretty much entirely dependent on the final exam. Unless it's influenced by school rank and past performance, or perhaps the assessment mark itself?
  17. Q

    What defines as "better" gearing?

    This is really grinding my "gears". Is higher than the industry average better because you're encouraging growth? Or is lower better because its lessening risk? In the context of this questions and its answer (D), it must be the former, but does that apply to all circumstances? Surely...
  18. Q

    Trig Integration Question

    The circle x^2 +y^2 = r^2 has radius r and centre O. The circle meets the positive x-axis at B. The point A is on the interval OB. A vertical line through A meets the circle at P. Let Theta=angle OPA. The shaded region bounded by the arc PB and intervals AB and AP is rotated about the x-axis...
  19. Q

    u Substitutes for Integration

    Do the majority of people use u substitutes all the time to save writing out working? Do you use them on simple questions or only on longer ones? Just wondering.
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