In this lab, you can simulate the collision of two carts to investigate simple collisions in 1D. You can change the velocity of each cart before the collision and vary the elasticity. You can observe the change in momentum in the plot and choose to plot the Energy, Velocity, or the Position against the time.  

You can predict the changes in the energy, velocity, position, and momentum, based not the velocity and elasticity you set before pressing 'play'. Compare this to the actual plots. What do you notice?