2) A ball of mass m and speed v travels horizontally, hits a wall, and rebounds. Another ball of the same mass and traveling at the same speed hits the wall and sticks to it. Which ball has a greater change in momentum as a result of the collision? Create a momentum bar chart to explain your answer. Ability A4: Is able to use representations other than math/words to solve problems Inadequate Adequate All relevant representations were used correctly to solve the problem and the ways they were used are clearly explained. Adequate Bar chart is properly labeled and has momentum bars of appropriate magnitudes and direction. The system is clearly identified. Adequate Explanation is clear, detailed, and shows physical and conceptual understanding. Explains both what was done and why. Needs Work All relevant representations were used to solve the problems, but minor errors were made or details of how they were used are omitted. Not all relevant representations were used or representations were used incorrectly to solve the problem. Ability A8: Is able to construct a momentum bar chart Needs Work Inadequate Bar chart is either missing energy values, bars drawn do not show the conservation of momentum or are drawn in the wrong places. Bars could also be labeled incorrectly. The system is not identified. Explanation is slightly unclear, missing some minor information, covers what was done but is missing why it was done. Missing Representations beyond math/words may be present but were not used to the solve of the problem. Bar chart has the momentum bars drawn correctly, but some labels are missing or the system is not correctly identified. The bar chart matches the process described with some other representation. Ability F3: Is able to clearly explain their reasoning in words Needs Work Inadequate Explanation is incoherent, incomplete, confusing, or inconsistent with the work shown. Missing No representation is constructed. Missing No verbal explanation is provided.