1. Go to this link: https://phet.colorado.edu/en/simulation/legacy/mass-spring-lab 2. Click on the \"play arrow\" and try out the simulation. Turn on the Show Energy to see the variation in forms of energy as the mass-spring system oscillates. 3. Determine how changing the mass on the spring changes the motion of the spring. (Look specically at how many times it moves per second or some gure like that) 4. Next determine, with a constant mass, how changing the "stretchiness" of the spring affects the period of the spring/mass system. 5. You will need to take and record measurements using the ruler and stopwatch. You should be able to come to a conclusion about how mass and stretchiness affect the period of the spring systems. ote: You can only change the stretchiness of spring #3.) Stiffness 6. How does the amount of mass affect the period of the spring? a) mass, longer period. b) mass, shorter period. 7. How does the stretchiness of the spring affect the period of the spring? a) spring, longer period. b) spring, shorter period