To cheat on a test is pretty easy, but it is also the easiest way to cheat yourself. First of all, if you get caught (and most people do), you fail automatically. The 50% you know is better than zero percent. You cheat yourself because by cheating, you are showing that you did not learn anything. So there you are, cheating on your history test, thinking that no one really cares about Joan of Arc. Years later, you are in a college classroom discussing the history of medieval France, and are completely lost. Why? Because you never learned anything about Joan of Arc. Study and do not cheat. Learn!