Physics 30 June 01 Diploma Exam

suspend the wire or rod from one arm of the balance

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Unformatted text preview: wire or rod must be perpendicular to the magnetic field Direction of forces do not matter. If Fm is given, it must be consistent with the polarity of the power supply 9 Scoring Guide for Anaholistic Questions Major Concepts: Graphing data; Calculation of slope and identifying physics quantity; Balanced Forces; Data Analysis Score 5 4 3 2 1 0 NR Criteria In the response, the student • uses an appropriate method that reflects an excellent understanding of all major concepts • provides a complete description of the method used and shows a complete solution for the problem • states formulas explicitly • may make a minor error, omission, or inconsistency; however, this does not hinder the understanding of the physics content • draws diagrams that are appropriate, correct, and complete • may have an error in significant digits or rounding In the response, the student • uses an appropriate method that reflects a good understanding of all major concepts or that reflects an excellent understanding of three of the major concepts • provides explanations that are correct and detailed • states most formulas explicitly and applies them correctly • makes minor errors, omissions, or inconsistencies in calculations and/or substitutions; however, these do not hinder the understanding of the physics content • draws most diagrams appropriately, correctly, and completely • may have errors in units, significant digits, rounding, or graphing In the response, the student • uses an appropriate method that reflects a basic understanding of all four of the major concepts or that reflects a good understanding of three of the major concepts • uses an appropriate method that reflects an excellent understanding of two of the major concepts and that reflects a basic understanding of one of the two remaining concepts • uses formulas and/or diagrams that may be implicit, and these are applied correctly; however, errors in calculations and/or substitutions that hinder the understanding of the physics content are present • provides explanations that are correct but lack detail • has a major omission or inconsistency In the response, the student • uses an appropriate method that reflects a basic understanding of three of the four major concepts or that reflects a good understanding of two of the major concepts • gives formulas and/or diagrams that are implicitly correct; however, they are not applied to determine the final solution or errors in the application of equations are present, but the answer is consistent with calculated results In the response, the student • attempts at least two of the major concepts or uses an appropriate method that reflects a good understanding of one of the major concepts • makes errors in the formulas, diagrams, and/or explanations, and the answer is not consistent with calculated results In the response, the student • identifies an area of physics that does not apply to the major concepts • uses inappropriate formulas, diagrams, and/or explanations No response is given. 10 Use the following information to answer the next question. In a modified Millikan apparatus, a small, charged object that has a mass of 3.8 × 10–15 kg is suspended by the electric field that is between charged parallel plates. The table below shows how the balancing voltage depends on the distance between the plates. Balancing vo...
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This note was uploaded on 01/14/2014 for the course PHYSICS Physics 30 taught by Professor Quinlan during the Fall '09 term at Centennial High School.

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