AccQuiz is a free accounting quiz and includes flash cards to study the quiz. It covers various topics in financial accounting. You learn the basics in 7 chapters:
Basics of Accounting and Business
Analyzing transactions
Adjusting Process
Accounting Cycle
Merchandise Business Accounting
Accounting for Inventory
Internal Control and Cash

AccQuiz was developed by professional accountants and has been verified for correctness. It is suitable for total beginners that want to get a glimpse of accounting, or for those wanting to refresh the basics before studying for the CPA exam.