Went okay, but I started running out of time so had to skip all of the waves questions. So I know I've lost 11 marks due to skipping questions. That paper was pretty nasty to be honest, I found last years very easy when I did the mock exam. Who else got something like 14.4 for the resistance of the resistor?

Reply 64

username2748677

Original post by alvan15

high pd to accelerate atoms to collide
i referenced the last point to my calculation for the energy of photon , as it is released when dropping from 3.4 to 1.5 so 1.9 ev

haha that's exactly what I did :biggrin:

. I saw that in a cgp book before the exam

Reply 65

1s22s2

Original post by wjdparkhouse

I thinks its because it was the second order, not the first.

orders with the double slit experiment?

Reply 66

DGanco

WTF was the whole total resistant force due to drag and friction (in the electric wheelchair question)? How do you calculate it?

Reply 67

Rexar

This makes me so scared formy A2 exam, reading all your comments :frown:

Reply 68

mangotangochick

Original post by DGanco

WTF was the whole total resistant force due to drag and friction (in the electric wheelchair question)? How do you calculate it?

Honestly I was so confused. At first I used my work done from question 1 and calculated mean force done by the wheelchair using WD = 1/2Fs (for average) but then realised if it was the same resistive force the wheelchair would not move at all! So then I tried using P = Fv and tried to find the maximum velocity and conpared it to the v the wheelchair was going at (at maximum) and did all this weird stuff using KE = 1/2(m)v^2 and tried to find Kinetic energy by resistive force and then use WD = 1/2Fs to find the mean resistive force again

Reply 69

Odium

sounds like everyone flopped like me, hopefully boundaries are low asf like last yr lol

Reply 70

Teejay12

This paper was utter nonsense!!!! The type of questions they gave is horrendous! Aaaahhh i really don't wanna fail!

Reply 71

Teejay12

Original post by captainslow12

went okay, but i started running out of time so had to skip all of the waves questions. So i know i've lost 11 marks due to skipping questions. That paper was pretty nasty to be honest, i found last years very easy when i did the mock exam. Who else got something like 14.4 for the resistance of the resistor?

omg yeaaaaah! I got that for the resistance too! But, idk if its right or not! Ah hated that paper so much! The first few easy questions tricked me so much!

Reply 72

GoodPlayer

Original post by EA7_

did anyone get around 1.9ev for question 7.2? that's the only question I think I got right so if i'm wrong then well, i'm ****ed

Well I got 3.0 eV.

Reply 73

GowriandDK

Anyone know why between C and D it's a minimum not 0, didn't seem to really make sense

Reply 74

alpacatailor

Original post by GoodPlayer

Well I got 3.0 eV.

I got 3.03eV as well

Reply 75

username2748677

Original post by alpacatailor

I got 3.03eV as well

Original post by GoodPlayer

Well I got 3.0 eV.

it can't be because the question asked for the wavelength with the lowest frequency and 410nm had the highest frequency

Reply 76

Jooms

Honestly, I don't think it was absolutely horrific, probably about as hard as last years paper tbh. I know I've done a bunch of stuff completely wrong but if the grade boundaries are anything like last years (which I really hope they are) I should still get an A. I'm just thankful that method marks exist haha.

Reply 77

Alex kore

To be honest everyone should forget about paper 1 and focus on their other exams , at the end of the day you get out what every you put in so if you didn't revise dont expect to be getting an A anytime unless your lucky. Like i found the paper mostly easy -yes there will always be hard questions so they could seperate the A grade students from the rest.