Jan 16 and 17, 2014 Learning Target: Demonstrate how objects doing work results in a change in energy. Question of the day: What is the equation for elastic potential energy Concept quiz Eureka on potential energy Notes on potential energy and Conservation of Energy Lab Part 2 Today’s vocabulary: Elastic Potential energy Spring constant Zero level Homework: Read pg.173-177, odd problems Quiz on Work and Potential Energy 1. Elastic potential energy depends on distance ________or __________. 2. The symbol k is called the 3. The spring constant is in units of 4. Is it possible to have negative potential energy? 5. The ______is the vertical coordinate at which gravitation potential energy is a result of an object’s position. 1. 2. 3. 4. Compressed or stretched Spring constant N/m Yes, it means work must be done to bring an object to zero level 5. Zero level