<p>Nope, pretty easy if you ask me. See, you only have to answer about 60 questions out of 75 to get 800, so even if you don't know a few questions (which rarely happens), you can leave them. For me, the major challenge was timing. But you can get that right with just a month or so's practice. :)</p>
<p>Go for Princeton Review's and Barron's to get you accustomed to the SAT standard.</p>
<p>I used the Barrons book and it helped me a lot. The tests in the Barrons book for physics are quite difficult and if you're score 750+ in those, then it's pretty safe to say that you're set for 800 on the real exam. Apart from that, common sense is a major part of the exam. Since it's a lot of concept, you can use a lot of common sense - sometimes no physics at all - to arrive at an answer quickly. And yeah, pace yourself! I spent too much time for the first few questions and had to rush a little bit towards the end (which I found to be a bit harder than the beginning, as expected). Overall though, it was not too bad.</p>