<p>I was in the same situation as you. Topics on the SAT that weren’t covered in my honors class: electric/magnetic fields, electric currents and capacitance, optics, waves, heat, modern physics…quite a large chunk of the test. </p>
<p>Now while the Kaplan prep book is WAAAY easier than the real thing, it was a great resource for me. I read through the entire book at least three times to learn the topics they hadn’t taught in honors. Then I read the PR prep book, which went more in-depth and is much more challenging than Kaplan, and proved to be really valuable. Then again, I had three months to study.</p>
<p>PR is probably the best. It included formulas and concepts which Kaplan didn’t even cover. If you only have time to go through one, I’d do PR.</p>