As jazz has posted for chemistry.
For physics you will need most of the knowledge in module 1, except you dont really get tested on the graph from kinematics and you dont do the vector resolution question.
For mod 2, no impulse and inelastic/elastic collision questions are tested, everything else is assumed knowledge and required in solving questions throughout all the modules.
For mod 3, you will need to know the theory side of waves, this is because in mod 8 you basically learn about the history of different models of light, you dont need to know the calculations though (none of the equations in page 43 of the hsc physics syllabus are tested, only dopplers law is used in explainations). For thermodynamics you dont need to know any of it.
For mod 4, the electrostatics dot point is all needed and the magnetism dot point (no magnetism equations needed), you dont get tested for circuit at all (you just need to know basic info like direction of current from a power pack).