What everyone else said, and: Memorizing equations will get you through the easier questions on the MCAT - the ones that are straight plug-and-chug, that almost everyone gets.
A good score, though, depends on you actually understanding the material, not just knowing it. This means having a good grasp of what the equations actually mean. There's a difference between knowing the equations, and knowing what situations they apply to, and knowing how to put them together in a way that will give a solid answer to the question you're faced with.
I don't mean to discourage you - I taught physics for years, and I promise you that anyone can learn it - but it doesn't sound like you're going about this the right way.