FOR TEACHERS ONLY. The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING/PHYSICS

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1 PS P FOR TEACHERS ONLY The Uiersity of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING/PHYSICS Wedesday, Jue, 005 :5 to 4:5 p.m., oly SCORING KEY AND RATING GUIDE Directios to the Teacher: Refer to the directios o page 3 before ratig studet papers. Updated iformatio regardig the ratig of this examiatio may be posted o the New York State Educatio Departmet s web site durig the ratig period. Visit the site ad select the lik Latest Iformatio for ay recetly posted iformatio regardig this examiatio. This site should be checked before the ratig process for this examiatio begis ad at least oe more time before the fial scores for the examiatio are recorded. Part A ad Part B Allow credit for each correct respose. Part A Part B

3 Directios to the Teacher Follow the procedures below for scorig studet aswer papers for the Physical Settig/Physics examiatio. Additioal iformatio about scorig is proided i the publicatio Iformatio for Admiisterig ad Scorig Regets Examiatios i the Scieces. Use oly red ik or red pecil i ratig Regets papers. Do ot attempt to correct the studet s work by makig isertios or chages of ay kid. O the detachable aswer sheet for Part A ad Part B, idicate by meas of a checkmark each icorrect or omitted aswer. I the box proided at the ed of each part, record the umber of questios the studet aswered correctly for that part. Studets resposes must be scored strictly accordig to the Scorig Key ad Ratig Guide. For ope-eded questios, credit may be allowed for resposes other tha those gie i the ratig guide if the respose is a scietifically accurate aswer to the questio ad demostrates adequate kowledge as idicated by the examples i the ratig guide. Fractioal credit is ot allowed. Oly whole-umber credit may be gie to a respose. Uits eed ot be gie whe the wordig of the questios allows such omissios. Raters should eter the scores eared for Part A, Part B, Part B, ad Part C o the appropriate lies i the box prited o the aswer booklet, ad the should add these four scores ad eter the total i the box labeled Total Writte Test Score. The, the studet s raw score o the writte test should be coerted to a scaled score by usig the coersio chart that will be posted o the Departmet s web site: o Wedesday, Jue, 005. The studet s scaled score should be etered i the labeled box o the studet s aswer booklet. The scaled score is the studet s fial examiatio score. All studet aswer papers that receie a scaled score of 60 through 64 must be scored a secod time. For the secod scorig, a differet committee of teachers may score the studet s paper or the origial committee may score the paper, except that o teacher may score the same ope-eded questios that he/she scored i the first ratig of the paper. The school pricipal is resposible for assurig that the studet s fial examiatio score is based o a fair, accurate, ad reliable scorig of the studet s aswer paper. Because scaled scores correspodig to raw scores i the coersio chart may chage from oe examiatio to aother, it is crucial that for each admiistratio, the coersio chart proided for that admiistratio be used to determie the studet s fial score. [3]

4 Please refer to the Departmet publicatio Regets Examiatio i Physical Settig/Physics: Ratig Guide for Parts B ad C. This publicatio ca be foud o the New York State Educatio Departmet web site Teachers should become familiar with this guide before ratig studets papers. Scorig Criteria for Calculatios For each questio requirig the studet to show all calculatios, icludig the equatio ad substitutio with uits, apply the followig scorig criteria: Allow credit for the equatio ad substitutio of alues with uits. If the equatio ad/or substitutio with uits is ot show, do ot allow this credit. Allow credit for the correct aswer (umber ad uit). If the umber is gie without the uit, do ot allow this credit. Pealize a studet oly oce per equatio for omittig uits. Allow full credit ee if the aswer is ot expressed with the correct umber of sigificat figures. Part B 48 Allow credit for markig a appropriate scale o the axis labeled Potetial Drop (V). 49 Allow credit for plottig all poits accurately (±0.3 grid space). 50 Allow credit for drawig the lie of best fit. Allow credit for a aswer that is cosistet with the studet s respose to questios 48 ad/or Example of a 3-Credit Graph Potetial Drop s. Curret Potetial Drop (V) Curret (A) [4]

5 5 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. y V slope x A 90. V 30. V slope 3.0 A.0 A V slope 30. or 30Ω A Allow credit for a aswer that is cosistet with the studet s graph. Note: The slope may be determied by substitutio of data poits oly if the data alues are o the best-fit lie or if the studet failed to draw a best-fit lie. 5 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. V W W W W q qv ( )( C J V ) 53 Allow credit for the correct order: C A B D. Allow credit ee if the studet writes the list of materials istead of the letters. 54 Allow credit for drawig a traserse wae that would produce complete destructie iterferece whe superimposed with the origial wae. A B C D [5]

6 55 Allow credit for 33 MeV. 56 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. a a a t 5 m/s 3 m/s 5.0 s.4 m/s 57 Allow credit for 9 m/s. 58 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. mm F G r m m m ( N)(.50 0 m) Ni m 4 ( ) Fr Gm kg kg kg 59 Allow credit for C. 60 Allow credit for. 6 Allow credit for 0e. Note: Allow credit if the studet writes eutral. [6]

7 Part C 6 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. PE mg h ( 50. kg 75 kg)( 9.8 m/s )( 0. m) PE + PE J 4 63 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. Examples of Acceptable Resposes PE m PE KE m 4 ( ) J 35 kg 0. m/s J or ( 50. kg + 75 kg) m/s PE KE m 4 Allow credit for a aswer that is cosistet with the studet s respose to questio Allow credit for idicatig that the total mechaical eergy is the same at all three poits. 65 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. a F F F et et et Fet m ma ( 0. kg)(.0 m/s ) 0. N or 0 N [7]

8 66 Allow a maximum of credits. Allow credit for a legth of 4.0 cm (±0. cm). Allow credit for drawig a ector directed to the left. Allow credit ee if the ector does ot begi at poit P. Example of a -Credit Respose + m 0. kg P Rough floor 67 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. F f µ F N Ff µ FN 0.N µ 98.N µ 0.0 Allow credit for a aswer that is cosistet with the studet s respose to questio 65. [8]

9 68 Allow credit for sketchig the theoretical path of the projectile. 30. m/s h Impact locatio d X 69 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. Examples of Acceptable Resposes d t i + at d + d 75 m ( 30. m/s)(.5 s) ( 0 m/s )(.5 s) or d t d t d ( )( d 75 m 30. m/s.5 s ) 70 Allow a maximum of credits, credit for a correct equatio with substitutio ad credit for solig for t (ot t ). Examples of Acceptable Resposes d t i + at t d a t h g or h t + h t i gt h g g t or t h g Note: Allow full credit if d y or s y are used i place of h. Allow credit if d is used i place of h. [9]

10 PHYSICAL SETTING/PHYSICS cocluded 7 Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. si θ si θ si θ si θ (.33)( si 40. ) si θ.00 si θ θ 59 or Allow a maximum of credits. Refer to Scorig Criteria for Calculatios i this ratig guide. Examples of Acceptable Resposes 8 ( ) m/s m/s or c c m/s m/s 8 8 [0]

11 Regets Examiatio i Physical Settig/Physics Jue 005 Chart for Coertig Total Test Raw Scores to Fial Examiatio Scores (Scaled Scores) The Chart for Determiig the Fial Examiatio Score for the Jue 005 Regets Examiatio i Physical Settig/Physics will be posted o the Departmet s web site o Wedesday, Jue, 005. Coersio charts proided for preious admiistratios of the Regets Examiatio i Physical Settig/Physics must NOT be used to determie studets fial scores for this admiistratio. []

12 Map to Core Curriculum Jue 005 Physical Settig/Physics Questio Numbers Key Ideas Part A Part B Part C Stadard Math Key Idea,,6,7,9,0,,,6,8, 9,0,,,3,3 48,49,50,5,55,56,57,58 6,63,65,66,67,69, 70,7,7 Math Key Idea 38 Math Key Idea 3 40,5 Sci. Iq. Key Idea Sci. Iq. Key Idea Sci. Iq. Key Idea 3 44,46 68 Eg. Des. Key Idea Stadard Key Idea Key Idea Stadard 6 Key Idea Key Idea Key Idea 3 36,4 Key Idea 4 Key Idea 5 Key Idea 6 Stadard 7 Key Idea Key Idea Stadard 4 Process Skills 4. 39,47, , Stadard ,7,8,9,0,,,3 37,39,40,4,47,5,5 6,63, ,5,6,7,8,9,30 4,53,54 7,7 5.,,3,4,5,6,7,8,9,0,, 3,4,5 38,44,45,46,56,57,58 65,66,67,68,69, ,3,33,34,35 43,55,59,60,6 []

When you click on Unit V in your course, you will see a TO DO LIST to assist you in starting your course.

When you click on Unit V in your course, you will see a TO DO LIST to assist you in starting your course. UNIT V STUDY GUIDE Percet Notatio Course Learig Outcomes for Uit V Upo completio of this uit, studets should be able to: 1. Write three kids of otatio for a percet. 2. Covert betwee percet otatio ad decimal