I've noticed a lot of people post questions scattered about everywhere on the forum about how to study for the NAPT, so this might be a little easier.
I took the NAPT earlier this week, and really found it much easier than I expected
Most of the test I took was math and physics with very few chemistry questions
without going into too much detail I can say this: Study Your Polynomials, Energy and Velocity in physics, and Balancing Chemical Equations. Most of the test consisted of the first two with a few more difficult math and physics problems scattered about.
Hope this helps anyone trying to study for this test.