You can get copies of past papers and mark schemes from the AQA website. We are studying Physics Syllabus A.
http://www.aqa.org.uk/qual/gceasa/phyA_assess.html
If you want to see the syllabus, you can click on "Specifications" at the top of the page. The 2007 syllabus is available as an Adobe file. You were given a hard copy of the syllabus, but it may be that your filing is terrible.
You want the bits called Subject Content
AS Module 2
AS Module 3
(and AS module 1 if you are re-sitting the January exam)
The syllabus is a useful list of things you need to revise.