.. . 69% Back Problem Set 05.pdf 3) Describe using words, a sketch, and a force diagram two situations whose mathematical description is presented below. 9.8N (30kg) v2 70ON - (30kg) kg 12m Ability A2: Can construct new representations from previous representations Adequate Needs Work Inadequate Missing Representations are Representations are created Representations are No attempt is made to constructed with all given without mistakes, but there attempted but use incorrect construct a different (or understood) information is information missing, i.e., information or the representation. and contain no major flaws. labels, variables. representation does not agree with the information used Ability A5: Is able to construct a force diagram Adequate Needs Work Inadequate Missing The diagram contains no FD contains no errors in FD is constructed but No representation is errors and each force is vectors but lacks a key contains major errors such constructed labeled so that it is clearly feature such as labels of as incorrect mislabeled or understood what each force forces with two subscripts not labeled force vectors, represents. or vectors are not drawn length of vectors, wrong from single point, or axes direction, extra incorrect are missing. vectors are added, or vectors are missing Ability A7: Is able to draw a sketch Adequate Needs Work Inadequate Missing Sketch contains all key Sketch has no incorrect Sketch is drawn but it is No representation is items with correct labeling information but has either incomplete with no physical constructed. of all physical quantities no or very few labels of quantities labeled, or have consistent subscripts; given quantities. Subscripts important information is axes are drawn and labeled are missing or inconsistent. missing, or it contains wrong correctly. Majority of key items are information, or coordinate.. . 69%