Hi Minotaur12,
I did my Stage 2 assessment before Xmas. There are a few different parts to the assessment, first is a maths and physics test. You are not allowed to have a calculator or phone for that matter, but they do provide you with a formula sheet which is useful. After that you have questions about sequences, rotating shapes, odd one out, memorising numbers. All fair easy questions. The harder parts are the hand-eye coordination tests. Have a look on Youtube at the ADAPT test, I wasn't sure what it was and struggled as it is quite intense, but watching the video will give you a really good idea of what to expect.