Taking SAT subject tests, need advice (physics & math2)

I will be taking the physics and math2 subject tests tomorrow and was wondering which of the exams I should take first.
I feel pretty indifferent as to which test I’d be better at, but if anything physics will be more challenging for me. And also, what are some essential formulas and concepts that I should know for physics (It’s been about 5 months since I’ve taken the AP exam and I’m a bit rusty).

I’m taking the same tests tomorrow. I was planning on doing math 2 first so I can get a warm up before the physics. Physics will be more difficult for me so I am opting to take the easier test first. I’d say start with the test you are most confident with. Confidence is the most important thing on test day.