Stellarium for computer- A MUST HAVE! Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. It is being used in planetarium projectors. Just set your coordinates and go.
The Physics Classroom - Use the tutorials for 1-D Kinematics and Newton's Laws. The sections on Vectors, Momentum, and Satellite Motion are also relevant. This site has pretty much everything you need.