i read as much study guides and textbooks as i can, cross-reference i.e. what's common in all of them ? you should definitely remember what content is in all of them.
i would agree from all except one that when a star reaches 3 solar masses it can form a black hole (only 1 says solar mass must be 8 and im not gonna agree)
i recall the correct formula for the problem (only works in hsc, not uni), and like maths the key to success is doing random physics questions.
electric fields and projectiles especially.
know how to combine equations e.g. gravitational force of a satellite is provided by centripetal force, i.e. F = mv2/r = GmM/r2, you prolly need to find its orbital velocity so v = √GM/r
find out how the worded (not historical or social stuff) ties into problems, e.g. the force on a wire depends on the length of the conductor, current flowing through the conductor, the strength of the local magnetic field then finally its orientation to the magnetic field, i.e. represented by equation F = L I B sin θ
because hsc physics is quite contextual, summarise what you read and highlight keywords, keywords are important
one thing thats getting really popular especially last year and a year ago is they like sneaking graph questions.
graph a projectile's displacement, velocity and acceleration of a trajectory.
what does the graph of induced current look like compared to the magnetic flux flowing through it ?