Fair enough. In past tests, I've found SHL to be very indicative of Numerical Reasoning tests, and the first link I gave very close to the mental arithmetic in the assessments too.. Physics wise, it may be worth checking out some Higher Level UK GCSE papers.
Checkout AQA and Edexcel, the exam bodies, for those. I would imagine that BA are looking for an understanding of your ability to interpret data.
Good luck :-)