Edexcel Physics Unit 4 - 21st June 2011

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Reply 820

trickyjoe0

can we get a poll on this thread as to what everyone thinks the grade boundaries will be?

Reply 821

aym3n

Original post by nikita_atikin

I don't know how Edexcel expect us to use Excel in our free time for what, REVISION??!!! How the hell was I supposed to know that it meant x10 to the power of something?!

What if I was a poor child who was homeless and had no computer? How would they expect me to know that? :rant:

u wouldnt be giving edexcel then :tongue:

Reply 822

Boom Boom Pow

Were there are questions after the one about the three conservation laws? If so how many marks roughly were there? I've been so paranoid over the past few days about it.

Reply 823

Slowbro93

Original post by Boom Pow

Were there are questions after the one about the three conservation laws? If so how many marks roughly were there? I've been so paranoid over the past few days about it.

Yeah there was, it was talking about what were the 3 laws and how they related to the reaction you have to right before (6 marks)

Reply 824

Boom Boom Pow

Original post by cpdavis

Yeah there was, it was talking about what were the 3 laws and how they related to the reaction you have to right before (6 marks)

So that was the last paper on the paper?

Reply 825

Slowbro93

Original post by Boom Pow

So that was the last paper on the paper?

There were 2 more parts after that question

Reply 826

Boom Boom Pow

Original post by cpdavis

There were 2 more parts after that question

Great! I knew it! :mad:

Do you remember how much they were worth by any chance?

Thanks at least you've put my mind to rest (sort of).

Reply 827

mvp47

Original post by Boom Pow

Great! I knew it! :mad:

Do you remember how much they were worth by any chance?

Thanks at least you've put my mind to rest (sort of).

Altogether they where worth about 2 or 3 marks. If you missed i wouldn't worry, but 1 mark can be the difference between a grade boundary.

Reply 828

Slowbro93

Original post by mvp47

Altogether they where worth about 2 or 3 marks. If you missed i wouldn't worry, but 1 mark can be the difference between a grade boundary.

Every mark counts, I missed out 1 mark and becuase of that I was 1 mark of a D (even though a D was terrible in my eyes)

Hopefully I have an A/A* in physics :biggrin:

Reply 829

mvp47

Original post by cpdavis

Every mark counts, I missed out 1 mark and becuase of that I was 1 mark of a D (even though a D was terrible in my eyes)

Hopefully I have an A/A* in physics :biggrin:

Thats the thing with physics, you can really tell how you did. I thought i flopped unit 1 last year as left out some questions and i still got about 85%. Hopefully an A/A* in physics too.

Reply 830

Hellokitty992

The Paper can be found in

http://www.scribd.com/Raaga92

Hope you all find it helpful :smile:

how was paper 4 guyz

Original post by attiyatanvir

how was paper 4 guyz

Wrong year matey.

Reply 833

Tomobomo

Original post by Lexi Templeton

I am having problem in ques no. 5 in June 2010 Paper. Can someone please explain it to me? Thank You.

5 The distance, in m, from an electron at which the electric field strength equals
6.4 × 108 J C–1 m–1 is:

A 1.7 × 10–19
B 6.0 × 10–19
C 2.2 × 10–18
D 1.5 × 10–9

r^(2)=((k(Coulombs constant (1/4πε0))*(Charge of electron))/Electric field strength (given)
r^(2)=((8.99*10^9)(1.6*10^-19))/(6.4*10^(8))
r^(2)=2.2475*10-18
square root
r=1.499166....*10^-9 which roughly equals 1.5*10^-9m
So answer is D XD