This document is the mark scheme for the October/November 2011 GCE Advanced Subsidiary Level and GCE Advanced Level physics exam. It provides the answers to the multiple choice questions on the exam and guidance for teachers on marking student responses. The mark scheme lists the question number and correct answer for each of the 40 multiple choice questions on the exam paper. Cambridge will not enter into discussions about the mark scheme and published it to provide guidance for teachers marking the exam.