SAT II Physics -- Help and Advice

<p>Can anyone give me some really good advice/study books/pointers on how I can increase my SAT II Physics score by a good 100 points? I wasn't entirely prepared the first time (got a 640) and my goal is just something above 700. </p>

<p>Actually, I'll set my goal to whatever would look good enough to schools like Northwestern, Cornell, Duke etc... If anyone can tell me what they predict would be a sturdy score, do so please.</p>