PS P FOR TEACHERS ONLY The Uniersity o the State o New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING/PHYSICS Wednesday, June 16, 004 1:15 to 4:15 p.m., only SCORING KEY AND RATING GUIDE Directions to the Teacher: Reer to the directions on page 3 beore rating student papers. Part A and Part B 1 Allow 1 credit or each correct response Part A Part B 1 1 4 13 4 5 36 4 4 1 14 6 4 37 3 43 3 4 15 7 4 38 3 44 1 4 3 16 3 8 1 39 1 45 4 5 3 17 9 3 40 1 46 4 6 1 18 1 30 41 3 7 19 3 31 3 8 0 3 3 3 9 1 1 33 3 10 4 1 34 1 11 4 3 35 4 1 4 1 Updated inormation regarding the rating o this examination may be posted on the New York State Education Department s web site during the rating period. Visit the site http://www.emsc.nysed.go/osa/ and select the link Latest Inormation or any recently posted inormation regarding this examination. This site should be checked beore the rating process or this examination begins and at least one more time beore the inal scores or the examination are recorded.
Directions to the Teacher Follow the procedures below or scoring student answer papers or the Physical Setting/Physics examination. Additional inormation about scoring is proided in the publication Inormation or Administering and Scoring Regents Examinations in the Sciences. Use only red ink or red pencil in rating Regents papers. Do not attempt to correct the student s work by making insertions or changes o any kind. On the detachable answer sheet or Part A and Part B 1, indicate by means o a checkmark each incorrect or omitted answer. In the box proided at the end o each part, record the number o questions the student answered correctly or that part. Students responses must be scored strictly according to the Scoring Key and Rating Guide. For open-ended questions, credit may be allowed or responses other than those gien in the rating guide i the response is a scientiically accurate answer to the question and demonstrates adequate knowledge as indicated by the examples in the rating guide. Fractional credit is not allowed. Only whole-number credit may be gien to a response. Units need not be gien when the wording o the questions allows such omissions. Raters should enter the scores earned or Part A, Part B 1, Part B, and Part C on the appropriate lines in the box printed on the answer booklet, and then should add these our scores and enter the total in the box labeled Total Written Test Score. Then, the student s raw score on the written test should be conerted to a scaled score by using the conersion chart that will be posted on the Department s web site: http://www.emsc.nysed.go/osa/ on Wednesday, June 16, 004. The student s scaled score should be entered in the labeled box on the student s answer booklet. The scaled score is the student s inal examination score. All student answer papers that receie a scaled score o 60 through 64 must be scored a second time. For the second scoring, a dierent committee o teachers may score the student s paper or the original committee may score the paper, except that no teacher may score the same open-ended questions that he/she scored in the irst rating o the paper. The school principal is responsible or assuring that the student s inal examination score is based on a air, accurate, and reliable scoring o the student s answer paper. Because scaled scores corresponding to raw scores in the conersion chart may change rom one examination to another, it is crucial that or each administration, the conersion chart proided or that administration be used to determine the student s inal score. [3]
Please reer to the Department publication Regents Examination in Physical Setting/Physics: Rating Guide or Parts B and C. This publication can be ound on the NYS Education Department web site at http://www.emsc.nysed.go/osa/scire/phyratg0.pd. Teachers should become amiliar with this guide beore rating students papers. Scoring Criteria or Calculations For each question requiring the student to show all calculations, including the equation and substitution with units, apply the ollowing scoring criteria: Allow 1 credit or the equation and substitution o alues with units. I the equation and/or substitution with units is not shown, do not allow this credit. Allow 1 credit or the correct answer (number and unit). I the number is gien without the unit, do not allow this credit. Penalize a student only once per equation or omitting units. Allow ull credit een i the answer is not expressed with the correct number o signiicant igures. Part B 47 Allow a maximum o credits or calculating the speed o the car. Reer to Scoring Criteria or Calculations in this scoring key. d = t πr = t π( 160 m) = 36 s = 8 m/s or 7.9 m/s [4]
48 Allow 1 credit or drawing an arrow directed toward the center o the circle. A 49 Allow a maximum o credits or calculating the magnitude o the acceleration o the car. Reer to Scoring Criteria or Calculations in this scoring key. a a a c c c = r = ( 8 m/s) 160 m = 4.9 m/s Allow credit or an answer that is consistent with the student s response to question 47. 50 Allow a maximum o credits or calculating the magnitude o the cannon s elocity. Reer to Scoring Criteria or Calculations in this scoring key. p = m p = m 3.40 10 kg i m/s 3 = 1.00 10 kg =.40 m/s [5]
51 Allow 1 credit or identiying the direction o the cannon s elocity. Acceptable responses include, but are not limited to: west opposite backward 5 Allow a maximum o credits, 1 credit or the magnitude and 1 credit or the direction. Examples o -Credit Responses.0 m/s west.0 m/s east Examples o 1-Credit Responses.0 m/s east.0 m/s west 53 Allow 1 credit or indicating that the slope is not constant. Acceptable responses include, but are not limited to: The slope changes. The line (or graph) cures. The graph is not a straight line. Note: Do not allow credit or slope only. 54 Allow 1 credit or. 55 Allow 1 credit or indicating that the temperature changed, or the resistiity changed. Acceptable responses include, but are not limited to: As the oltage increased, the temperature increased, causing a higher resistance. The bulb got hotter. the temperature o the bulb resistiity 56 Allow 1 credit or. [6]
57 Allow a maximum o credits or calculating the waelength o the sound wae. Reer to Scoring Criteria or Calculations in this scoring key. = λ λ= 331 m/s λ= 650 Hz λ = 0.51 m or 0.509 m 58 Allow a maximum o credits or calculating the absolute index o reraction o medium X. Reer to Scoring Criteria or Calculations in this scoring key. c n = n = 8 3.00 10 m/s 8 1.80 10 m/s n = 1.67 or 1.7 59 Allow 1 credit or 75 m. [7]
Part C 60 Allow 1 credit or correctly plotting all points ±0.3 grid space. 61 Allow 1 credit or drawing the best-it line. 60 61 Example o a -Credit Graph 10 Force s. Elongation 8 Force (N) 6 4 0 0.5 1.0 1.5 Elongation (m) 6 Allow a maximum o credits or calculating the spring constant o the spring. Reer to Scoring Criteria or Calculations in this scoring key. k = slope F k = x k = 4.0 Ν.0 Ν 1.0m 0.5m k = 4.0 Nm Allow credit or an answer that is consistent with the student s response to questions 60 and 61. Note: The slope may be determined by direct substitution o data points only i the data alues are on the best-it line, or i the student ailed to draw a best-it line. [8]
63 Allow a maximum o credits or describing a procedure to obtain the necessary measurements, allocated as ollows: Allow 1 credit or setting up a measured distance. and Allow 1 credit or measuring the time to trael that distance. 64 Allow 1 credit or an equation or equations that could be used to correctly determine the student s acceleration. Examples o Acceptable Responses i 1 d = t + at or a = d t 65 Allow 1 credit or 1,000 N or 11,800 N. 66 Allow a maximum o credits or calculating the rictional orce the road applied to the car in stopping it. Reer to Scoring Criteria or Calculations in this scoring key. F F F =µ F N = (0.67)(1, 000 N) = 8,000 N or 8,040 N Allow credit or an answer that is consistent with the student s response to question 65. [9]
67 Allow a maximum o credits or calculating the work done by the rictional orce in stopping the car. Reer to Scoring Criteria or Calculations in this scoring key. W W W = Fd = ( ) 8,000 N (16 m) = 5 1.3 10 J or 18,000 J Allow credit or an answer that is consistent with the student s response to question 66. 68 Allow a maximum o credits or calculating the speed o the car beore the brakes were applied. Reer to Scoring Criteria or Calculations in this scoring key. Examples o Acceptable Responses 1 W = KE = m = = KE m = 15m/s 5 ( ) 1.3 10 J 3 1. 10 kg or Fnet a = m a = 6.7 m/s = + ad i = ad i i i ( )( ) = 0 6.7 m/s 16 m = 14.6 m/s Allow credit or an answer that is consistent with the student s responses to questions 66 and/or 67. 69 Allow 1 credit or indicating the color with the lowest intensity. Examples o Acceptable Responses iolet the one with the greatest requency [10]
PHYSICAL SETTING/PHYSICS concluded 70 Allow 1 credit or using inormation rom the graph to explain the adantage o using yellowgreen paint. Examples o Acceptable Responses Yellow green has a higher intensity. Yellow green is brighter than red. 71 Allow a maximum o credits or calculating the requency o this light. Reer to Scoring Criteria or Calculations in this scoring key. = λ = λ = 8 3.00 10 m/s 7 6.56 10 m = or 14 14 4.57 10 Hz 4.6 10 Hz 7 Allow 1 credit or 3.03 10 19 J or an answer that is consistent with the student s response to question 71. 73 Allow 1 credit or 1.89 ev or an answer that is consistent with the student s response to question 7. [11]
Regents Examination in Physical Setting/Physics June 004 Chart or Conerting Total Test Raw Scores to Final Examination Scores (Scaled Scores) The Chart or Determining the Final Examination Score or the June 004 Regents Examination in Physical Setting/Physics will be posted on the Department s web site http://www.emsc.nysed.go/osa/ on Wednesday, June 16, 004. Conersion charts proided or preious administrations o the Regents Examination in Physical Setting/Physics must NOT be used to determine students inal scores or this administration. [1]
Map to Core Curriculum June 004 Physical Setting/Physics Question Numbers Key Ideas Part A Part B Part C Standard 1 Math Key Idea 1 47,49,50,5,57,58, 60,61,65,66,67, 59 68,71,7,73 Math Key Idea Math Key Idea 3 40 Sci. Inq. Key Idea 1 Sci. Inq. Key Idea 63 Sci. Inq. Key Idea 3 36,39,45 64,69,70 Eng. Des. Key Idea 1 Standard Key Idea 1 Key Idea Standard 6 Key Idea 1 Key Idea 51 Key Idea 3 38 Key Idea 4 Key Idea 5 37 Key Idea 6 Standard 7 Key Idea 1 Key Idea Standard 4 Process Skills 4.1 4,43,44,46,53,54, 55 4.3 56 5.1 48 6 5.3 41 Standard 4 4.1 11,1,13,14,15,16,18,19, 37,4,43,44,46,53,,3 54,55 4.3 6,7,8,9,30,31,3,33, 34,35 39,56,57,58, 69,70,71 5.1 1,,3,4,5,6,7,8,9,10,0,1 36,45,47,48,49,50, 51,5,59 60,61,6,63,64 5.3 17,4,5 40,41 7,73 [13]