lol - those questions look quite hard...very glad I'm not doing the GAMSAT next year...
I used Physics: A strategic approach (not the one for Engineers and Scientists), and these were our chapters (slightly different, partially cos our subject is a bit different...I would go with Russ' ones first for Physics for Biomed off a no-physics background): [numbers from the latest edition]
10.1, 2 5; 11.1, 2, 3, 4, 5; 12.5, 7, 8 (thermal)
12.3, 13.1 - 7 (fluids)
20.1 - 6, 21.1 - 9, 22.1 - 6, 23.1 - 8, 24.1 - 7, 25.1 - 5 (electrostatics, circuits and magnetism)
29.2, 30.1, 2, 4 ; Chapter 30.2, 3, 4 ; Chapter 30.5, 6 ; Chapter 29.1, 3, 4 (the H atom spectrum) 7, 9; Chapter 28.1; 28.2; 30.7 (radiation)
But if you haven't done physics before, I'd definitely start with motion (Newton's Laws, etc. in detail)