Lab 10S - Masses and Springs Directions: Download, print, read, and bring this worksheet to DL. You will work on it in class with your group. Answer questions 1-3 and all predictions before running the following simulation: http://phet.colorado.edu/en/simulation/mass-spring-lab. 1. Using the Intro simulation explore and answer this question. Say you hang a mass m on spring A and it stretches a distance d. If then you hang the same mass on a second spring (B) and it doesn't stretch as far, what can you conclude about the two springs? Which one has a lower spring constant? Explain briefly how you tested this