2) A square loop with sides of length 0.2 m is moving at a constant speed of 0.2 m/s into a region of uniform B-field of strength 2 × 10-³ T which is 0.5 m long. Represent this process with a sketch showing all important moments in time and with all given quantities listed. Missing No representation is constructed. Scientific Abilities Is able to draw a sketch Scientific Abilities Is able to construct new representations from previous representations Construct a graph showing the magnetic flux (Þ) through the loop over time starting from before it enters the magnetic field and ending after it has completely exited the magnetic field. Missing No attempt is made to construct a different representation. Scientific Abilities Is able to represent a situation with mathematics Inadequate Sketch is drawn but it is incomplete with no physical quantities labeled, or important information is missing, or it contains wrong information, or coordinate axes are missing. Missing No representation is constructed. Inadequate Representations are attempted but use incorrect information or the representation does not agree with the information used. Needs Improvement Sketch has no incorrect information but has either no or very few labels of given quantities. Subscripts are missing or inconsistent. Majority of key items are drawn. Inadequate Mathematical representation lacks the algebraic part (the student plugged the numbers right away) has the wrong concepts being applied, or signs are incorrect. Needs Improvement Representations are created without mistakes, but there is information missing, i.e. labels, variables. Find the rate at which the magnetic flux through the loop changes as it enters and exits the magnetic field. Adequate Sketch contains all key items with correct labeling of all physical quantities have consistent subscripts; axes are drawn and labeled correctly. Needs Improvement Mathematical representation is represented symbolically (not just using numbers) and applies appropriate physics concepts to the situation. No evaluation of the math in the problem is present. Adequate Representations are constructed with all given (or understood) information and contain no major flaws. Adequate Mathematical representation is represented symbolically (not just using numbers) and applies appropriate physics concepts to the situation. The mathematical representation is evaluated for its appropriateness and consistency.
2) A square loop with sides of length 0.2 m is moving at a constant speed of 0.2 m/s into a region of uniform B-field of strength 2 × 10-³ T which is 0.5 m long. Represent this process with a sketch showing all important moments in time and with all given quantities listed. Missing No representation is constructed. Scientific Abilities Is able to draw a sketch Scientific Abilities Is able to construct new representations from previous representations Construct a graph showing the magnetic flux (Þ) through the loop over time starting from before it enters the magnetic field and ending after it has completely exited the magnetic field. Missing No attempt is made to construct a different representation. Scientific Abilities Is able to represent a situation with mathematics Inadequate Sketch is drawn but it is incomplete with no physical quantities labeled, or important information is missing, or it contains wrong information, or coordinate axes are missing. Missing No representation is constructed. Inadequate Representations are attempted but use incorrect information or the representation does not agree with the information used. Needs Improvement Sketch has no incorrect information but has either no or very few labels of given quantities. Subscripts are missing or inconsistent. Majority of key items are drawn. Inadequate Mathematical representation lacks the algebraic part (the student plugged the numbers right away) has the wrong concepts being applied, or signs are incorrect. Needs Improvement Representations are created without mistakes, but there is information missing, i.e. labels, variables. Find the rate at which the magnetic flux through the loop changes as it enters and exits the magnetic field. Adequate Sketch contains all key items with correct labeling of all physical quantities have consistent subscripts; axes are drawn and labeled correctly. Needs Improvement Mathematical representation is represented symbolically (not just using numbers) and applies appropriate physics concepts to the situation. No evaluation of the math in the problem is present. Adequate Representations are constructed with all given (or understood) information and contain no major flaws. Adequate Mathematical representation is represented symbolically (not just using numbers) and applies appropriate physics concepts to the situation. The mathematical representation is evaluated for its appropriateness and consistency.
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