MCAT Physics: Khan Academy or TPR?

OR something else? Physics at the school I go to is not really taught well. It's easy (thank goodness!) but in terms of preparing me for the MCAT, it really hasn't. I don't know any physics. Should I watch the Khan academy videos? Or read my TPR book? Any advice on this section would be much much appreciated!
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums