The Work Energy Principle is one of the big ideas in introductory physics courses. It's so big that the textbook presentation can get a little confusing - but it doesn't have to be that way. I haven't ...

We investigate Hooke's Law and explore the concept of spring potential energy. Segment 4G: Spring Potential Energy We investigate Hooke's Law as we explore the concept of spring potential energy. We ...

A research team from Penn State has broken a 165-year-old law of thermal radiation with unprecedented strength, setting the stage for more efficient energy harvesting, heat transfer and infrared ...