Okay, first you will have review or relearn some mathmatics: physics and math go hand in hand. Can't have one without the other.
Which Physics are you willing to study?
Based on your post you said wanted to learn "High School" physics. Automatically from this, you will want to learn/review Algebra and Trigonometry. If you want to be successful in your study of basic physics it necessary to learn this math.
Math
First will have to have learn/review your
Algebra. (Algebra 1 and Algebra 2 from High School, or namely, Elementary and Intermediate Algebra). Here are some free online algebra textbooks:
Algebra (I) = http://www.babylon.k12.ny.us/PDF/integrated_algebra/Integrated_Algebra_1.pdf
Algebra (II) with Trig = http://www.babylon.k12.ny.us/PDF/algebra%202/Algebra%202%20and%20Trigonometry.pdf
Physics
Some online tutorials:
http://www.hippocampus.org/ (Contains Algebra and Physics)
If you don't wish to learn/review math: then you may go for a
Conceptual Physics book
If you do wish to learn/review math:
http://en.wikibooks.org/wiki/FHSST_Physics
There's a lot of free info on the internet so do a quick Google search and see what comes up. Hint: if you want to locate free online pdf files then type something like this in the Google search bar:
+physics filetype:pdf (or)
algebra based physics filetype:pdf
*Note: check it out and see where you're at and how much time/effort you're willing to put in. Physics isn't something trivial to learn it will require much reading and pondering.
I hope I could help! Good Luck! ;)