A level physics help

decmatt · 11 Jan 2007 at 20:24

Hi

Have a test tomorrow and started an exam paper
http://www.aqa.org.uk/qual/gceasa/phya_assess.html

Jan 2003 - Unit 1

At the start im stuck, on Q1 b)i) it says calculate its charge in C for the iron formed, I thought it would be 4x 1.6x10-19 because there are 4 atoms now in the atom, however in the answer booklet it says its 2 x 1.6x10-19

Why is it 2 x 1.6x10-19?

I no I should go ask my teacher but I have my Unit 1 test tomorrow so that isnt really an option

Thanks a lot

decmatt · 11 Jan 2007 at 20:31

get it now, cant believe I didnt get that

I think I need sleep, thanks a lot guys

decmatt · 12 Jan 2007 at 10:49

Thanks I have one more question I cant find the answer on

What particles are effected by strangeness that I need to know about?

decmatt · 12 Jan 2007 at 11:10

What particles contain an S quark thogh?

decmatt · 12 Jan 2007 at 12:07

Thanks, that sounds right

Have to leave now for my exam, im nervous as anything

decmatt · 12 Jan 2007 at 16:25

Jongo said:
w00t home after the exam, thought it was pritty damn good! for physics lol

same here, mich better then I thought it was going to go, you do AQA A?