Wasn't too bad. I only got stuck with 2 MCQs and a few short answers. I didn't go too well in my option topic though. Kinda wish I focused on it more during study.
Personally found MCQ and some short answers hard
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Wasn't too bad. I only got stuck with 2 MCQs and a few short answers. I didn't go too well in my option topic though. Kinda wish I focused on it more during study.
Some of the MC and Short Answers were weird. The Astrophysics questions were all on the boring parts of the topic (imo) which sucked. I liked the exam though, thought it was pretty interesting.
Last few MCQs were a bit hard, what was wrong with the short answers though?
HSC 2017: English Adv - Maths Ext 1 - Maths Ext 2 - Chemistry - Physics
ATAR Aim: 97.30
Rip got 16/20 in MCQ and the radiation question was really hard probably stuffed that up
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2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
That magnetic flux question got me...
2016 HSC: Software Design & Development - State Ranked
2017 HSC: Advanced English - Mathematics 2U - Physics - Engineering Studies - Information Processes and Technology
projectile was fked
Same.
Radiation question for space re-entry.
The Magnetic flux one.
And finding the range for that projectile tbh. (If you guys got that out, how'd you do it? I think the initial velocity was 10m/s and angle 60 degrees?)
But I tried to write at least something down for each.
The radiation question was bs had no clue what I was writing
Proton I half bsed it but hopefully my north west helical shape was right
To the person above, range was found using delta y = 0, finding t and subbing back into delta x.
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2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
HSC 2017: English Adv - Maths Ext 1 - Maths Ext 2 - Chemistry - Physics
ATAR Aim: 97.30
HSC 2017: English Adv - Maths Ext 1 - Maths Ext 2 - Chemistry - Physics
ATAR Aim: 97.30
Yeah the radiation question for re-entry confused me as well. I also really liked the projectile question, it was cool to get something different and not just something really standard.
Did anyone figure out how to do question 19 (The one with the rope and the galvanometer) ?
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2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
Oh. *fp* Now I feel stupid. That delta y would then have been like a quadratic, right? The equation I subbed into into made t=0 (v=u+at : I'm not stupid... I think exam stress got to me...) So I only ended up stopping at writing down the equation delta x = ux*t. (Except I kinda stupidly crossed it out... so I don't think the markers would count it).
But thanks for that.
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2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
First part, I talked about g-force and heat and how the safe angle is between 5.2-7.2 degrees and 10 degrees exceeds that.
Um for radiation one I had no clue tbh. I wrote something about light and heat energy and having to reduce the heat on the spacecraft (ceramic plates?). I'm pretty positive I'm probably incorrect for that though.... but for the sake of writing 'something' down.
Last edited by silverdawn565; 30 Oct 2017 at 2:22 PM. Reason: Edited first sentence.
Wasn't too bad, screwed up on magnetic flux question (got density and flux definitions confused), radiation q had no idea. What should scaling be like for this exam?
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2016 HSC (Accelerated): // 2U Maths (97) // SOR 1 (48) //
2017 HSC: // English Adv // Bio // Phys // 3U Maths // 4U Maths //
Goal: 99.8+
Was it wrong to for the flux density to use the max flux and divide it by the area of the circle loop (It didn't say the loop was circular nor that the given length was the diameter, so idk if what i did was right)
That's what I did. If you didn't assume it was a circle, how would you calculate area?
I have no clue by my friend was confident to say that you had to find the "area under the curve" from the flux vs time graph - which idk if that made sense
lmfao i did pi(r) ^2 xD
Magnetic field strength is flux per unit area. The maximum flux on the flux vs time graph was 0.6Wb I think so the maximum magnetic field strength over the 12 seconds would be 0.6/Area of the loop. Then for part b), the rate of change of flux (flux vs time) is the gradient of the curve which is voltage and then you use the right hand grip rule or something else to find direction. I don't think you had to find the area under the flux vs time curve for anything and you really couldn't do so either because part of it was curved if I remember correctly.
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