* Physics HL 2011 * HL predictions / discussion / aftermath * (1 thread only please)

LilMissCiara

r0cks0l1dd wrote: »

I know this is for HL but I really need this question asked about OL. Has heat come up every second year since the course the started (excluding Q1-5)? It looks that way but I want to be sure. I sure hope that isn't the case because I find that the easiest topic on the course.

You'll just have to wait and see! :P But the exam has no strict layout as such so theres nothing to say it won't be up.

If it is not there in the morning don't panic. Answer the other 4 questions you would if Heat was there and then pick the best question out of what's left!

BeanbagBallbag

I'll be powering through now until 2 o clock, shiiiiiiiiiiiiiiiiiiiiiite, gewan the lads

Cardor

I hope this paper isn't a tuffy.. :S Fingers crossed..

mk6705

ride-the-spiral wrote: »

I dunno, I quite like it. I tried to do the particle physics myself as a back up but there's too much of just learning it for me, so I prefer the understanding part of the AE. And also, a lot of it just reiterates the previous electricity chapter's so it reinforces your understanding of it.

Spent half an hour cramming particle physics...Possibly the quickest topic I've ever picked up. The calculations are easy enough, it's all about the mass of the relevant particle. Fingers crossed for both Joule's Law and Boyle's Law. At least 80 marks for those. Could get close to full with the speed of sound in air too.

conormccarthy92

having both momentum and boyles law prepared , AND BOTH come up . deadly . the short questions and q11 were both very simple as was q12(d) . the other questions in section B were tricky enough but overall quite a handy paper

higgz

Lovely experiments although there were a lot of tough part B questions.

Donerkebab

Nice old paper!

mk6705

Beautiful paper. Experiments were great. Had Boyle's Law down to a tee, with a little guesswork the electrolyte went well. The wavelength of monochromatic light went well, had that prepared too. Q5 was a lovely question. Q12 was nice enough also (did c and d). Q11 wasn't too bad. Q10 (did a) was nice enough, though the end was tricky. Q8 wasn't as easy as I thought it'd be. Overall, a fairly nice paper and it could be predicted easily enough.

Dongl

I will never love a woman the way I loved that physics paper.
Experiments, particle physics, 11 ,12 and 5 were all perfectly manageable.

Only one that might have gone slightly awry was the 18 marker for the mechanics question.
Still diagram and and attempting it should account for half of the marks there.

Looking good, roll on chemistry. :cool:

LilMissCiara

Mechanics was a fairly wordy question.. The whole paper was in a way I suppose..

Got 7 questions done and 3 parts in 12. Overall I am happy.. Q5 and Q12 and to an extent Q11 were easy.

Just happy to see the back of it! :P

irish_man

Ok. I'm just home from the exam.

The experiments were fine. I did Q2,3,4. Q1 looked awkward with the "constant velocity" and all that jazz so I stayed away from it. The last part of Q3 will catch a few out as will the last part of Q4. I'm fairly certain I got em. Not 100% though.

Q5 was grand but that Millikan question really annoyed me. I just remembered "photoelectric effect" when i had left the school. Ah well. I got the other 9 out.

Q6 looked like a right mess so i avoided it.

Q7 part a and b were fine. C was a bit sticky. Made a decent attempt.

Q8 I didn't get the fundamental frequency question. Apart from that it was grand.

Q10(a) this question was fine up until the last one. I was searching for those constants for AGES!! Such a mess not having them on the paper. Would it kill them???

Q11 I'm fairly certain of all but 2. One of the 2 is right and the other is wrong. Thats because i quoted the exact same thing twice.

Q12 a. I thought the last part was messy. I used the "auld" mg-F=ma for the minimum one and the same but a positive F for the max one. Hope its right.

Q12 b. Thank you Pat Doyle!!! Couldn't believe it. The exact question he had in his notes. Got it all out lovely.

Q12 c was nice and easy also. No major difficulties.

I thought it was a grand paper. There were many questions that will stop people from their A1s. Hopefully not me though! I think it was highly unfair to not give the constants. It would have thrown many off. i thought it was a harder paper than last year but not overly so.

Pegmin

The experiments were nice. I wasnt really happy with the long questions tho. =/

electrictrad

Loved the paper. . .really nicely done by the SEC

What were the neutrons used for in nuclear reactors?

electrictrad

. . .and did any1 get fmin=0 for 12a

LilMissCiara

electrictrad wrote: »

Loved the paper. . .really nicely done by the SEC

What were the neutrons used for in nuclear reactors?

I said for the production of energy.. Cause like isn't that what they are for..?!

electrictrad wrote: »

. . .and did any1 get fmin=0 for 12a

Yes I did.. Because at the center point the acceleration towards the point is zero.. F=ma, F=0m, F=0.. I think it's wrong though but it was just my reasoning.

jumpguy

Physics was graaaaaaaaaaaaaand. Disappointing lack of nuclear physics on the paper (not even so much as a mention of a simple nuclear reactor C'MON EXAM PEOPLE, LOOK AT FUKISHIMA, GET TOPICAL!!!!)

Didn't really like the heat transfer question (Q7) but I had to do it. Very, very wordy (a) to it. I also had to do Q8 too (got around 1888 or something for the fundamental frequency, anyone else get that?)

Q10 (particle physics), Q12 (4 to do 2), Q5 (short questions) were grand though.

larkin1993

I got Fmin = 0

mk6705

electrictrad wrote: »

Loved the paper. . .really nicely done by the SEC

What were the neutrons used for in nuclear reactors?

To make fission occur ie. splitting the nucleus.

brownlad

grabd sect A
bastard of a sectB:D ... still shoulda got a b2

DM360

Experiments were nice, good selection and none particularly difficult.
Section B relied heavily on understanding. The questions were long but had a balance of theory and calculations. Disappointed by the lack of modern physics as it usually appears and is a good source of marks for most people.
Overall a decent paper that was slightly above average in difficulty but not by much.

Alcohol_MAN

I thought it was a really tough. I said that the emf produced was proportional to the difference in temp a made a crappy graph on it.

Question 9 okay
Question 5 okay
Question 10 only figured it out last bit after
Question 11 sketchy
Question 12 alrightish.
Looking at a B now. It's terrible that this is what's gonna show for my course

RedBlueRedBlue

Oh god, why did I sit the higher paper. I added up my marks at the end and it came to 30%.

Waaaaaaaaaaaay too much electricity on the paper
Where the F*CK was the modern physics?!

No electromagnetic induction?

I couldn't even get through the light calculations

jumpguy

RedBlueRedBlue wrote: »

Waaaaaaaaaaaay too much electricity on the paper
Where the F*CK was the modern physics?

Q10? :-/

Stretch101

Personally I didnt find it too bad but from the reactions of the others in my class it didn't go very well.

RedBlueRedBlue

jumpguy wrote: »

Q10? :-/

Oh I was talking about radioactivity and nuclear. But yeah, I couldn't do most of the particle physics. Was expecting to see Cockcroft and Walton.

Brian123M

Section A was alright , nothing hard.
Section B was terrible , the mechanics question , short questions and question 12 wasnt the worst, but the rest was horrible , Whats the experiment to show the same thing as the worker with the suit of metal around him to protect him from the electricity
Was hoping for a B1/B2 , would take a C3 now

ride-the-spiral

Was quite happy, most of the questions were nice enough, and 'twas a good applied electricity question.

GerardB

jumpguy wrote: »

Physics was graaaaaaaaaaaaaand. Disappointing lack of nuclear physics on the paper (not even so much as a mention of a simple nuclear reactor C'MON EXAM PEOPLE, LOOK AT FUKISHIMA, GET TOPICAL!!!!)

the papers were made around christmas

jamesr1775

anyone else get 4/3 F for first part of question 9?

Stretch101

Question 1 - No problems
Question 2 - Couldnt have been easier (nice change from the heat questions)
Question 3 - Not too bad

Question 5 - Very easy
Question 6 - Tough part c
Question 8 - Average
Question 9 - Third part was tricky enough
Question 11 - Pretty okay
Question 12 - Hard enough considering the amount of choice

Overall - Definitely harder than the average paper