ATAR Notes: Forum

Archived Discussion => VCE Exam Discussion 2020 => Exam Discussion => Victoria => Maths Exams => Topic started by: Eric Dong on November 20, 2020, 02:33:09 pm

Title: Spec Exam 2
Post by: Eric Dong on November 20, 2020, 02:33:09 pm
How did you guys find it? :)
Title: Re: Spec Exam 2
Post by: AAGlue on November 20, 2020, 02:34:39 pm
How did you guys find it? :)

It was literally the easiest exam out of all of them (methods and spec)  ;D
Title: Re: Spec Exam 2
Post by: digdog123 on November 20, 2020, 03:06:22 pm
It was literally the easiest exam out of all of them (methods and spec)  ;D

no cap
Title: Re: Spec Exam 2
Post by: drops on November 20, 2020, 03:23:23 pm
Maybe slightly better than Spec 1 exam..at least time wise
Title: Re: Spec Exam 2
Post by: Xu ZhongYu on November 20, 2020, 03:30:15 pm
much easier than methods  :P
Title: Re: Spec Exam 2
Post by: hairs9 on November 20, 2020, 03:45:50 pm
Solutions:
https://mp.weixin.qq.com/s/YkpKVaNQ63RyEmNzd_vBAA?fbclid=IwAR0MOfM5kqYiQ-svzkkefHF9eYM6bVMjDHdaXHcAujrmtqYBtnPj0c2tw6o
Title: Re: Spec Exam 2
Post by: Eric Dong on November 20, 2020, 03:57:06 pm
What do you guys think about the raw 40+ 45+ and 48+ cutoff scores respectively for this year?  :D
Title: Re: Spec Exam 2
Post by: AAGlue on November 20, 2020, 04:51:44 pm
What do you guys think about the raw 40+ 45+ and 48+ cutoff scores respectively for this year?  :D

Definitely much higher than last years for sure 
Title: Re: Spec Exam 2
Post by: cotangent on November 20, 2020, 06:32:58 pm
Yo, I think I dropped 2 on exam 1 and 4 on exam 2, what do yall think I can get?
Title: Re: Spec Exam 2
Post by: periphrasticobfuscation on November 20, 2020, 06:44:37 pm
Perhaps a 47?
Title: Re: Spec Exam 2
Post by: zoharreznik on November 20, 2020, 06:53:45 pm
Can someone estimate my study score?
SACs:
70% (SACs were cooked tho in a strong cohort)
Exam 1:
32-34ish/40
Exam 2:
70ish/80
I don’t wanna look at solutions so I’m assuming I lose a few more marks then I know I lost
Title: Re: Spec Exam 2
Post by: Sconey on November 20, 2020, 07:15:21 pm
Thoughts on my study score?

GA1: High A+
GA2: 29/40
GA3: 69/80
Title: Re: Spec Exam 2
Post by: 1134447343 on November 20, 2020, 09:16:33 pm
Much better than Exam 1 and Methods but this will definitely have a high average, think I can still clutch a 35 raw tho.
Title: Re: Spec Exam 2
Post by: jtohmygod on November 21, 2020, 01:07:11 am
would a 50-60% get a raw 30? or lower  :'( ?? Honestly thought I did good in the exam but then I saw the solutions...... ye nooooooooo
Title: Re: Spec Exam 2
Post by: WonkyN on November 21, 2020, 06:45:49 am
What would
Rank 2 out of 9 (Alright - ish to weak cohort)
EXAM 1: Think 30/40 (Being generous with consequential marking here)
EXAM 2: Around (70-75)/80 Assuming I lost marks for silly mistakes. Haven't checked solutions yet.
I was aiming for about a 35 raw in spesh
Title: Re: Spec Exam 2
Post by: S_R_K on November 21, 2020, 07:39:51 am
Solutions:
https://mp.weixin.qq.com/s/YkpKVaNQ63RyEmNzd_vBAA?fbclid=IwAR0MOfM5kqYiQ-svzkkefHF9eYM6bVMjDHdaXHcAujrmtqYBtnPj0c2tw6o

I feel like I must be missing something really simple if I'm wrong, but for multiple choice Question 19, isn't the answer B = 0.06?

\(\begin{aligned}\textrm{Change in momentum }
&= m\left(\vec{v}_f - \vec{v}_i\right) \\
&= 0.02\left(2\vec{i}-7\vec{j} - \left(2\vec{i}-10\vec{j} \right)\right) \\
&= 0.02\left(3\vec{j}\right) \\
\end{aligned} \)

So the magnitude is \(0.02\times 3 = 0.06\).

What, if anything, is wrong with this?

Also, I'm curious to see how Extended Response, Question 4d will be marked, since clearly CAS only gives approximate solutions, whether some additional evidence needed to be given that those are the ONLY solutions for t in [0, 40] (eg. drawing graphs of \(x_a(t)-x_d(t)\) and \(y_a(t)-y_d(t)\) and locating zeroes), and so there is no point of collision.
Title: Re: Spec Exam 2
Post by: elelel on November 21, 2020, 09:01:18 am
https://twmpublications.com/solutions

This company got b for that multiple-choice question!! A lot of the answers would varied from the different company suggested solutions. I think I'd get around 60/80 for Exam 2 and hoping that's still 35/50-ish according to TSFX study score predictor ahh
Title: Re: Spec Exam 2
Post by: hairs9 on November 21, 2020, 11:29:56 am
I got B too for that one(as well as B for question 9).
Title: Re: Spec Exam 2
Post by: S_R_K on November 21, 2020, 05:21:50 pm
I got B too for that one(as well as B for question 9).

Yes for question 9 the answer is B, since the tick mark at (0, 1) should have gradient –1.
Title: Re: Spec Exam 2
Post by: norisJones on November 25, 2020, 02:03:46 pm
I think I got around 70-75% in exam 1
And 75-80% in exam 2.
Can someone predict my ss, could I get 32-33 or is that unachievable at this point?
Title: Re: Spec Exam 2
Post by: zoharreznik on November 26, 2020, 09:33:08 am
I think I got around 70-75% in exam 1
And 75-80% in exam 2.
Can someone predict my ss, could I get 32-33 or is that unachievable at this point?

That definitely seems achievable. Seems like you could get even higher than that most likely