This web page contains problems that supplement Chapter 6 on the Energy Principle in the

**third edition** of the introductory textbook

*Matter and Interactions*, by Ruth Chabay and Bruce Sherwood. Problems are designed to provide practice for solving energy problems in a variety of systems, including an elementary particle, springs, roller coasters, kinetic energy resulting from decay of a neutron, and more. Each problem can be viewed separately, with solutions, or downloaded as a pdf file.

The site includes videos showing solutions to many of the problems. These can be followed with RSS or as podcasts from iTunes. Instructors are encouraged to submit their own problems and solutions. Problems should be submitted in LaTeX format; ample support is available on the web site.

**EDITOR'S NOTE:** Although this material is organized to support

*Matter and Interactions* by Chabay and Sherwood, most of the problems can be used with other introductory physics texts. Additional information about the pedagogy behind

*Matter and Interactions*, which emphasizes student modeling and a modern perspective, can be found at

Matter and Interactions Home PageFor a cost-free article by the authors on implementation of

*Matter and Interactions* in the introductory physics classroom, SEE RELATED ITEMS on this page.