You are Here: Home

# 30th may 2012 physics 2 aqa

Physics exam discussion - share revision tips in preparation for GCSE, A Level and other physics exams and discuss how they went afterwards.

Announcements Posted on
1. Re: 30th may 2012 physics 2 aqa
Im actually ready for this exam. Just make sure you know everything in the syllabus. At least they give us all of the formulas. We might need to just re arrange them. Difference between nuclear fusion and fission. If you dont know the answer just make one up. I think plum pudding model will come up. :/
2. Re: 30th may 2012 physics 2 aqa
(Original post by JU1CY-FRU1T)
Im actually ready for this exam. Just make sure you know everything in the syllabus. At least they give us all of the formulas. We might need to just re arrange them. Difference between nuclear fusion and fission. If you dont know the answer just make one up. I think plum pudding model will come up. :/
Make sure you remember how to rearrange the transformer equation where you have Vp/Vs = Np/Ns etc.
3. Re: 30th may 2012 physics 2 aqa
how did everyone find it?
4. Re: 30th may 2012 physics 2 aqa
aqa has chose to screw us over again...
5. Re: 30th may 2012 physics 2 aqa
I thought it was ok, what did you get for the mass of the skateboard?
6. Re: 30th may 2012 physics 2 aqa
I got 2.2kg!
A lot of my other class did too..
7. Re: 30th may 2012 physics 2 aqa
yerp me too
8. Re: 30th may 2012 physics 2 aqa
what did people get for the one which was linke, why do the boys move at different momentums?
9. (Original post by pseudonymegg)
what did people get for the one which was linke, why do the boys move at different momentums?
Because they have different velocities; different direction.

This was posted from The Student Room's iPhone/iPad App

This was posted from The Student Room's iPhone/iPad App
11. Re: 30th may 2012 physics 2 aqa
(Original post by Pinkjumpers)
I got 2.2kg!
A lot of my other class did too..
why was it 2.2? Confused!
12. Re: 30th may 2012 physics 2 aqa
does anyone know when there's going to be an unofficial mark scheme?
13. Re: 30th may 2012 physics 2 aqa
also someone write a potential mark scheme?/grade boundaries?
14. Re: 30th may 2012 physics 2 aqa
(Original post by morgh002)
why was it 2.2? Confused!
you had to work out the momentum of the boy first momentum = mass x velocity that came to 22 (i think) then because the momentum of the boy and skateboard were the same you could use 22kg m/s to work out the mass of the skateboard mass = momentum/velocity 22/10 (the board recoiled at 10m/s) so the mass was 2.2kg
15. Re: 30th may 2012 physics 2 aqa
(Original post by morgh002)
why was it 2.2? Confused!
See, the momentum was 22 kg m/s. You had to work that out from the boy's details. He had a mass of 44kg and a speed of 0.5, I think. And 44kg x 0.5m/s = 22 kg m/s.
Therefore, to solve for the skateboard:
22 kg m/s = X kg x 10 m/s.
X kg = 22 kg m/s / 10 m/s.
X = 2.2 kg!

Voila
16. Re: 30th may 2012 physics 2 aqa
what component did everyone get?
17. Re: 30th may 2012 physics 2 aqa
variable resistor
18. Re: 30th may 2012 physics 2 aqa
what did you put for the anomalous result like what caused it?
19. Re: 30th may 2012 physics 2 aqa
random error^
20. Re: 30th may 2012 physics 2 aqa
(Original post by Charlesgreenough)
random error^
yeah i put that to phew!

## Step 2: Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank

this is what you'll be called on TSR

2. this can't be left blank

never shared and never spammed

3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. By completing the slider below you agree to The Student Room's terms & conditions and site rules

2. Slide the button to the right to create your account

You don't slide that way? No problem.

Last updated: May 30, 2012
Useful resources

## Articles:

Study Help rules and posting guidelinesStudy Help Member of the Month nominations

## Groups associated with this forum:

View associated groups
Study resources