There will be 25 multiple choice question worth 2.0 points each. For each one, choose the best answer from the available choices. In addition, there will be a short answer section with 3-5 questions worth a total of 50 points. A few of these may involve interpreting mathematical equations, however, any equations that you need will be given to you so you don't need to memorize them. No need to memorize numbers like the mass of the Sun either. Some questions may involve interpreting diagrams. Written responses to short answer questions will be graded on completeness and brevity. Write enough to fully answer the questions (and answer them well), but do not round out your answer with a lot of fluff that wanders off-topic. It is always a good idea to go back and re-read the question after you have finished to make sure that you have answered it as completely and concisely as possible!
The exam will cover lecture and section topics through March 4 and the corresponding material in the book. If you have been keeping up in the class by attending lecture, reading and studying the book, reviewing your notes, and doing the lecture quizzes, you should be in good shape to take the midterm. It is a good idea to review this material again during the week before the midterm so that it will be fresh in your mind. Don't just cram the night before the exam!