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1) A toy mobile is built like the one shown below. B 2 3 1 2 1 1 Object A has a 1.0-kg mass. What should be the mass of object B? The numbers indicate the relative lengths of the rods on each side of their supporting cords.

1) A toy mobile is built like the one shown below. B 2 3 1 2 1 1 Object A has a 1.0-kg mass. What should be the mass of object B? The numbers indicate the relative lengths of the rods on each side of their supporting cords.

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1) A toy mobile is built like the one shown below. Adequate The diagram contains no errors and each force is labeled so that it is clearly understood what each force represents. B Mathematical procedure is fully consistent with the design. All quantities are calculated correctly with proper units. Final answer is meaningful. 2 Adequate Explanation is clear, detailed, and shows physical and conceptual understanding. Explains both what was done and why. 3 Object A has a 1.0-kg mass. What should be the mass of object B? The numbers indicate the relative lengths of the rods on each side of their supporting cords. Ability A5: Is able to construct a force diagram Needs Work Inadequate FD contains no errors in vectors but lacks a key feature such as labels of forces with two subscripts or vectors are not drawn from single point, or components are drawn instead of forces. 2 1 FD is constructed but contains major errors such as incorrect mislabeled or not labeled force vectors, length of vectors, wrong direction, extra incorrect vectors are added, or vectors are missing. Ability D7: Is able to choose a productive mathematical procedure for solving the problem Adequate Needs Work Inadequate Correct and complete mathematical procedure is described but an error is made in the calculations. All units are consistent. 1 Explanation is slightly unclear, missing some minor information, covers what was done but is missing why it was done. A mathematical procedure is described, but is incorrect or incomplete, due to which the final answer cannot be calculated. Or units are inconsistent. Missing No representation is 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. constructed. Missing Mathematical procedure is either missing, or the equations written down are irrelevant to the design. Missing No verbal explanation is provided.
Transcribed Image Text:1) A toy mobile is built like the one shown below. Adequate The diagram contains no errors and each force is labeled so that it is clearly understood what each force represents. B Mathematical procedure is fully consistent with the design. All quantities are calculated correctly with proper units. Final answer is meaningful. 2 Adequate Explanation is clear, detailed, and shows physical and conceptual understanding. Explains both what was done and why. 3 Object A has a 1.0-kg mass. What should be the mass of object B? The numbers indicate the relative lengths of the rods on each side of their supporting cords. Ability A5: Is able to construct a force diagram Needs Work Inadequate FD contains no errors in vectors but lacks a key feature such as labels of forces with two subscripts or vectors are not drawn from single point, or components are drawn instead of forces. 2 1 FD is constructed but contains major errors such as incorrect mislabeled or not labeled force vectors, length of vectors, wrong direction, extra incorrect vectors are added, or vectors are missing. Ability D7: Is able to choose a productive mathematical procedure for solving the problem Adequate Needs Work Inadequate Correct and complete mathematical procedure is described but an error is made in the calculations. All units are consistent. 1 Explanation is slightly unclear, missing some minor information, covers what was done but is missing why it was done. A mathematical procedure is described, but is incorrect or incomplete, due to which the final answer cannot be calculated. Or units are inconsistent. Missing No representation is 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. constructed. Missing Mathematical procedure is either missing, or the equations written down are irrelevant to the design. Missing No verbal explanation is provided.
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