Since you don't need to learn the equations off by heart I would recommend the following:
- get that forumla sheet and know what each formula for space is about, what each variable in the equation means and how to use that equation AND what the SI units for each value are.
- look at the syllabus and see if you can write short written summaries for each dot point
- get a hold of past HSC questions and see the sorts of things they ask - there are test books that do this and sepearte them into each of the topic areas. If you do a multiple choice question as practice, make sure you can write it out as a long answer and explain why you chose a certain answer because they can ask multiple choice questions as longer written answers.
I hope that helps