cstjohn wrote:How similar are the practice exams to the real thing? Is there any overlap with questions from the previous exams?
Also, are there any other sources for practice questions other than the previous GREs (8677, 9277, 9677, 0177). I'm afraid that after working through all the exams, I will just remember the question and its answer rather than the underlying physics.
There's the 0877 exam too which is the one they now mail you. So that's 5 exams = 500 questions. If you can really memorize 500 question and answers, then I think this will actually serve you well on the real PGRE. I found that when I took the PGRE (2009 and 2011), the questions were pretty similar to the old exams, especially 0877. I think a big part of doing well on the PGRE is not just knowing the Physics but knowing the tricks/strategies behind answering each question.
There are no other official practice questions other than these 5 exams. But you can find many books written by other people (i.e. not ETS, the exam writers) with questions to practice on. Some of them are good (right level of difficulty and detail as the real questions) while others are not very good at simulating test questions (but still may be useful for preparing yourself for the Physics). I think a successful PGRE study strategy would focus both on test taking strategies / getting used to the type of questions as well as learning Physics. I'd even say that you would want to almost put equal weight on these two parts!