sat math 2 or physics?

i find math easier and i dont understand anything in physics ive studied 5 chapters from the book and im blank im thinking of shifting to math 2; will my application look more appealing if i take math 2 or physics?

also im going into biotechnology

How about both ? Before I took the Physics SAT test I Almost knew nothing about physics but that led me to read a lot of preparing books. Try studying it at http://www.sparknotes.com/testprep/books/sat2/physics/ , That’s where I started at the time I knew nothing. It gets you started from the basics, THE REAL BASICS.