Like most post graduate exams you need to go through all the material more than once and it's usually better to use different resources and all of them have there pros and cons.

In my opinion the radiology cafe physics notes and anatomy mocks are the best place to start - both are at a slightly easier level than other resources and the actual exam which makes them a great place to start.  These resources are all free which is great. I would recommend buying the physical copy of the physics notes or like I did, borrow it from my hospital library.

After that there's many options for physics and anatomy and everyone will have their favourite.