Mass on Spring Simulation

The following simulates a spring with a mass attached bouncing. You can watch the spring bounce by pressing the play button at the bottom of the screen. Play with the different sliders to change the values of k and m. Then answer the following questions. 1. What do you think k and m represent? Why? 2. Why does the graph slow down toward the end of the time? 3. How does this relate to what we're learning about in class?