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# Edexcel A2 Physics Unit 5 'Physics from Creation to Collapse' watch

1. (Original post by fredbraty)
In the multiple choice for the ratio of the mean velocities,did you find 1/4?
haha i didnt want to waste time on that one.... made a little calculation from the 3/2 nkt formula and just guessed it was 4 ... since i assumed larger molecules will move faster :P dont know wether it would be correct
2. (Original post by yadas)

They asked for the mean velocities, not for the mean square velocities (which would be 1/16).
oh i love you so much right now
they actually asked for the root of the squared mean velocities which is somehow what you said .
Oh,also at the damping question they asked to mark point X where acceleration is maximum and point Y where u is zero,right?
3. (Original post by yadas)

They asked for the mean speeds, not for the mean square speeds (which would be 1/16).
I too put that.
the mcqs were easy
4. (Original post by WindsorHL3)
I thought it was easy overall although a couple of the multiple choice were difficult and I realised after the exam I forgot to divide the total distance moved by the bridge by 2 to find amplitude.
I DID THE SAME F******* MISTAKE ;(
5. (Original post by Pegasus92)
I too put that.
the mcqs were easy
no tehre were some tricky ones.
6. (Original post by antonfigo)
haha i didnt want to waste time on that one.... made a little calculation from the 3/2 nkt formula and just guessed it was 4 ... since i assumed larger molecules will move faster :P dont know wether it would be correct
7. I thought it was hell in exam format. I've never been good at questions that require more than a sentence of writing and this paper was choc full of them!

I left the damping question till the end and then realized it was quite easy. I was halfway through writing when we had to stop

I was hoping everyone else found it hard, but sadly not. Lets hope 45 is a B?
8. (Original post by kosy91)
hey thanks.....and to you too
kosyyyyyyyyyyyyyyyyyyyyyy,where are you man????????
How did you do?
I hope you did well .
9. (Original post by GeorgaTiger)
I thought it was hell in exam format. I've never been good at questions that require more than a sentence of writing and this paper was choc full of them!

I left the damping question till the end and then realized it was quite easy. I was halfway through writing when we had to stop

I was hoping everyone else found it hard, but sadly not. Lets hope 45 is a B?
dont worry most people mess up in theory questions,and since it was full of those grade boundaries will be low.
10. (Original post by GeorgaTiger)
I thought it was hell in exam format. I've never been good at questions that require more than a sentence of writing and this paper was choc full of them!

I left the damping question till the end and then realized it was quite easy. I was halfway through writing when we had to stop

I was hoping everyone else found it hard, but sadly not. Lets hope 45 is a B?
Everyone said it was relatively easy. Let's go with 56ish for an A, 50ish for a B, 44ish for a C.
11. where is unamed???????????????
12. (Original post by fredbraty)
no tehre were some tricky ones.
I know I have made a lot of careless mistakes, but hopefull Ill get 10/10 for the mcq in both phy4 and phy5.
I find edxcel mcqs easy
13. (Original post by Pegasus92)
I know I have made a lot of careless mistakes, but hopefull Ill get 10/10 for the mcq in both phy4 and phy5.
I find edxcel mcqs easy
you will be fine,dont worry.
I might have a markscheme in the next days.
If i have one i will post it. (if i find a scanner)
14. (Original post by JayAyy)
Everyone said it was relatively easy. Let's go with 56ish for an A, 50ish for a B, 44ish for a C.
Lets all pray
15. (Original post by JayAyy)
Everyone said it was relatively easy. Let's go with 56ish for an A, 50ish for a B, 44ish for a C.
Jay, if for this paper A is 56 what would phy4 A would be?
16. (Original post by fredbraty)
dont worry most people mess up in theory questions,and since it was full of those grade boundaries will be low.
Thanks, I think you just saved me from bursting into tears and possibly a small heart attack.
17. (Original post by fredbraty)
you will be fine,dont worry.
I might have a markscheme in the next days.
If i have one i will post it. (if i find a scanner)
How will you get the marking scheme?
18. (Original post by Pegasus92)
Jay, if for this paper A is 56 what would phy4 A would be?
Most people found that really difficuly. 47/80 would be a good prediction if it was hard as everyone said it was. (The lowest it has been was about 45/80 or something like that).
19. (Original post by GeorgaTiger)
Thanks, I think you just saved me from bursting into tears and possibly a small heart attack.
20. (Original post by fredbraty)
Lets all pray

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