TPR Physics Passages

Hi everyone! Sorry if this is a redundant question; however, I am enrolled in the Princeton Review MCAT 2015 course, and have been practicing using their online resources (pertinent homework problems).

While I have been doing okay in the other subjects, I seem to be doing very poorly in the physics passages. Has anyone else encountered something similar? How do TPR's practice passages and problems (including those in the Science Workbook) compare to the real MCAT physics questions?

Thank...

TPR Physics Passages