I spent something over an hour exploring this material, and highly recommend it. This collection of problems, though useful...
I spent something over an hour exploring this material, and highly recommend it. This collection of problems, though useful in themselves, are perhaps even more useful as examples and/or templates for instructor-customized physlet problems. Most are of excellent quality. Both qualitative and quantitative problems are included within the set. Some are rather difficult, and will provide a challenge for very good students. Others should be accessible to all students in an introductory course who take the time to think about them. Most probe student understanding in ways not accessible to typical end-of-chapter problems. Some work will need to be done by instructors to modify these (e.g., remove the answers, put randomness in the problems) if they are to be useful for graded homework, although they can be used as is for study self-study beyond the basic in-class presentation.