Here is an interesting quiz which has blanks to fill in and the answers are further down in the document.
http://www.eaifo2.org/files_pdf/Eaif...assingBall.pdf Their main site has a lot of good site on it.
http://www.eaifo2.org/EaifoMechanics.html
This site has some online quizzes under resources. Not sure what year the answers are from.
http://www.mcoa.org/football/index.htm