Here you can find useful resources and practice papers for both triple award physics and the double award Combined Science physics for the exams that start in summer 2018.
This link contains useful resources and past papers for the GCSE Astronomy course.
This contains past paper questions and mark schemes for various topic areas covered at GCSE. It can be used for both AQA Double Award revision and Cambridge IGCSE revision.
This contains course information such as the syllabus, revision resources such as check lists for each topic and past papers with mark schemes for the iGCSE physics course.