Tips for the Test




Besides going over all the homework problems and examples in the chapters. You should think about the demos and be able to answere the following on each one. --What was the demo? --What was the result? --What have we learned? While studying you should keep in mind the name of this course. CONCEPTS of physics. The concepts are the important thing--not the formulas Even when going over a numerical exercise you should be thinking? What concept is this problem trying to illustrate? How does it do that? What amazing insights have I gained? It would be good to be able to say each formula (i.e. F=ma) in words, and be able to describe what that formula means in words. Last tip: When doing numerical problems on the test. --Draw a picture.-- translate the problem into a mental picture --Write down what you know?--(translate the words) i.e. v=20 m/s --Write down what you want to know? i.e. d= ? --Find an APPROPRIATE relationship between what you don't know and what you know. In some cases there may not be a direct relationship and you'll have to find something else out to get what you really want to know. --Show your work --Think about your answer. Does it make sense? For instance, say the problem is to calculate the distance a rock goes when thrown off a cliff. After doing the calculation you get an answer of 100,000 m. Stop and realize that most mortals cannot throw a rock that far. So you'd go back and check what you did starting from the top.

Good luck!
Back