Jimmy,
There's loads of interesting stuff on this site:
http://www.grc.nasa.gov/WWW/K-12/airplane/bga.html
Also, if you're planning to do physics up to your equivalent of (UK)A-levels (sorry i don't really know how the system works down there!) then this site is a simple but very useful resource:
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
hope that helps!