Are the quizzes and tests cumulative?
A. In general, yes. Quizzes will tend not to be cumulative, and will mostly be based on the material since the last quiz. Tests will also concentrate on the material since the last test, but as we build up to answering the question (What is N?), you will need to remember the early material. • Q. Do we have to know all the laws such as “inverse-square law,” “black body law,” “Wein’s law,” etc.? Or do we have to know that these laws are related to certain reasonings (i.e. – we should know that the reason for our believing stars are black bodies is because of Wein’s law) ? A. Yes and No. You do need to know the inverse square law. You should have a vague idea what a black body is. Wein’s law is not critical. You need to know that we know stellar temperatures and other parameters not by guessing but because they obey physical law. You should know what gravity is, and that it is an inverse-square law. Review Newton’s laws and Kepler’s laws. But do not memorize formulae. I may ask you to exp
