Directions: Use this self-grading assessment exercise to evaluate your understanding of the topics in this unit. You should be able to answer at least four (4) out of five (5) questions correctly. If you score less than that, you should study the material in this unit.

TO START THE QUIZ: Click on "Next Question". Choose the appropriate answer. You will immediately see if your answer is correct, and a running total of your score will also appear. When you have reached the last question, click again on "Next Question", and a "report card" window will appear. Be sure to close the report card window when you are done. If you get a JavaScript error you may need to reload (refresh) the page to initialize the question list.