When I studied for the PS section, I wrote out a couple of pages of physics and chemistry formulas and memorized them. Almost all of the physics questions can be answered if you only know the correct formula to use. They are mostly relationship problems. Something to the effect of: "if you increased the distance between the earth and moon by two fold, what would happen to the gravitational force?" Also, many of the chemistry problems are similar in that if you know the formulas and variables, you can solve them easily. I tried to study concepts the first round of the MCAT and didn't do so well on PS. The second time, I only studied formulas and did much better. Also, I agree with the previous posters. Don't get bogged down reading the passages. Give them a good skim over. Most of the data for answering any questions will be given in the tables. I used the Nova Press Physics Review book and it helped me a lot. The method of questioning is very similar to the MCAT and prepared me well for it. Hope this helps and good luck.