i took ap physics and ap bio… but i felt more prepared for the ap phys… should i logically take ap physcs ?
If you had to choose, then obviously SAT Physics since you said you are more prepared. SAT Bio is really only needed for some schools if you plan to major in Bio engineering or BioChemistry.
Take the subject you feel more comfortable in. Most schools do not have a preference for which science you take.
But know that the subject tests are a bit different from AP.
SAT II Biology is more content based than the current AP Bio curriculum. With that said, if you get a prep book for SAT II Bio (Barron’s is excellent), you should do well on the exam (assuming you know the AP material well). I can’t speak for physics, since I haven’t taken it yet.