Lab #2: Conservation of Momentum [5 points] Link to simulation: [Hold Ctrl + Click to open link]. https://phet.colorado.edu/sims/html/collision- lab/latest/collision-lab_en.html Learning goals: From this lesson you will be able to: .Draw "before-and-after" pictures of collisions. . Construct appropriate vector representations of "before-and-after" collisions. . Explain what variables are conserved and under what conditions. . What does "elasticity" mean? . Identify vector and scalar quantities. Directions: Click link and select the 1D. Check velocity, momentum, kinetic energy, values[ More Data], as the case may be. Click "to Repeat a trial and click . to Reset to default values. 1. Experiment with one-dimension elastic collisions (Check Show Values and set elasticity at 100%)._Complete the table below to help you organize your thoughts about collisions; "x" means there would not be a drawing in that box. Try varying mass and initial speed (including some initial zero velocity). I am expecting several trials. Check the SLOW instead of the NORMAL. [ 3 points Mass 1 Mass 2 Initial Initial velocity Initial Initial total Kinetic Final velocity Final Final total Final total Kinetic velocity 1 2 total momentum energy velocity 2 velocity momentum energy velocity initial final (total) (total) Trial 1 0.5 0.5 0.25 0.5 Pictures of X X balls with vector Trial 2 Pictures of X X X balls with vector 2 . Think about the relationships you observed and then answer these questions: [ 2 points ] a. What is the difference between the quantities that have vector drawings and the ones that don't? b. In your own words, what does "elastic collision" mean, based on the results in the table in (1) above? C. List quantities that have the same value (and direction if a vector) before and after the collision. If a quantity has the same value (and direction if a vector), it is said to be "conserved" d. What quantities are not "conserved"? Author: Ariel Paul, Jon Olson, Kathy Perkins, Mike Dubson, Mindy Gratny, Sam Reid, Trish Loeblein Provider: University of Colorado Boulder Provider Set: PhET Interactive Simulations Creative Commons Attribution 3.0 United States _