SAT II Chem vs Physics

Help!

So to apply to Cooper Union’s engineering school, applicants are required to take 2 subject tests: (Math 2 or Math 1) and (Physics or Chemistry). I’ve already take the Math 2 test, but still need to take a science subject test.

What I would like to know is, which test would I do better on/which is easier? I currently take AP Chemistry (just took the AP exam today) and I’ve taken Physics (equivalent to AP Physics 1) but haven’t seen physics since freshman year (aside from calculus maybe). I know the Chem SAT II is really hard, some say harder than the AP, and I’m not a genius in Chem, but its fresher in my mind.

Do you think it’s possible to study for the Physics SAT II in the summer and take it in October/November of next year? (I would almost be starting fresh.)

OR, is it better to learn whatever other subjects are on the Chem SAT II (that aren’t on the AP) and try to really get my chem knowledge down pat?

~thank you

I would recommend taking Chem SAT II in June if you have not taken it today.