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New York Regents Physics June 2009

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PS/PHYSICS The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING PHYSICS Wednesday, June 24, 2009 9:15 a.m. to 12:15 p.m., only The answer sheet for Part A and Part B 1 is the last page of this examination booklet. Turn to the last page and fold it along the perforations. Then, slowly and carefully, tear off the answer sheet and fill in the heading. The answers to the questions in Part B 2 and Part C are to be written in your separate answer booklet. Be sure to fill in the heading on the front of your answer booklet. You are to answer all questions in all parts of this examination according to the directions provided in the examination booklet. Record your answers to the Part A and Part B 1 multiple-choice questions on your separate answer sheet. Write your answers to the Part B 2 and Part C questions in your answer booklet. All work should be written in pen, except for graphs and drawings, which should be done in pencil. You may use scrap paper to work out the answers to the questions, but be sure to record all your answers on the answer sheet and in the answer booklet. When you have completed the examination, you must sign the statement printed at the end of your separate answer sheet, indicating that you had no unlawful knowledge of the questions or answers prior to the examination and that you have neither given nor received assistance in answering any of the questions during the examination. Your answer sheet and answer booklet cannot be accepted if you fail to sign this declaration. Notice. . . A scientific or graphing calculator, a centimeter ruler, a protractor, and a copy of the 2006 Edition Reference Tables for Physical Setting/Physics, which you may need to answer some questions in this examination, must be available for your use while taking this examination. The use of any communications device is strictly prohibited when taking this examination. If you use any communications device, no matter how briefly, your examination will be invalidated and no score will be calculated for you. DO NOT OPEN THIS EXAMINATION BOOKLET UNTIL THE SIGNAL IS GIVEN. PS/PHYSICS Part A Answer all questions in this part. Directions (1 35): For each statement or question, write on the separate answer sheet the number of the word or expression that, of those given, best completes the statement or answers the question. 1 On a highway, a car is driven 80. kilometers during the first 1.00 hour of travel, 50. kilometers during the next 0.50 hour, and 40. kilometers in the final 0.50 hour. What is the car s average speed for the entire trip? (1) 45 km/h (3) 85 km/h (2) 60. km/h (4) 170 km/h 5 A 25-newton weight falls freely from rest from the roof of a building. What is the total distance the weight falls in the first 1.0 second? (1) 19.6 m (3) 4.9 m (2) 9.8 m (4) 2.5 m 6 A golf ball is given an initial speed of 20. meters per second and returns to level ground. Which launch angle above level ground results in the ball traveling the greatest horizontal distance? [Neglect friction.] (1) 60. (3) 30. (2) 45 (4) 15 2 The vector diagram below represents the horizontal component, FH, and the vertical component, FV, of a 24-newton force acting at 35 above the horizontal. F V Base your answers to questions 7 and 8 on the information below. N 24 F A go-cart travels around a flat, horizontal, circular track with a radius of 25 meters. The mass of the go-cart with the rider is 200. kilograms. The magnitude of the maximum centripetal force exerted by the track on the go-cart is 1200. newtons. H What are the magnitudes of the horizontal and vertical components? (1) FH = 3.5 N and FV = 4.9 N (2) FH = 4.9 N and FV = 3.5 N (3) FH = 14 N and FV = 20. N (4) FH = 20. N and FV = 14 N 7 What is the maximum speed the 200.-kilogram go-cart can travel without sliding off the track? (1) 8.0 m/s (3) 150 m/s (2) 12 m/s (4) 170 m/s 8 Which change would increase the maximum speed at which the go-cart could travel without sliding off this track? (1) Decrease the coefficient of friction between the go-cart and the track. (2) Decrease the radius of the track. (3) Increase the radius of the track. (4) Increase the mass of the go-cart. 3 Which quantity is a vector? (1) impulse (3) speed (2) power (4) time 4 A high-speed train in Japan travels a distance of 300. kilometers in 3.60 103 seconds. What is the average speed of this train? (1) 1.20 10 2 m/s (3) 12.0 m/s 2 m/s (2) 8.33 10 (4) 83.3 m/s Physics June 09 [2] Note that question 15 has only three choices. 9 A 0.50-kilogram cart is rolling at a speed of 0.40 meter per second. If the speed of the cart is doubled, the inertia of the cart is (1) halved (3) quadrupled (2) doubled (4) unchanged 15 As a ball falls freely toward the ground, its total mechanical energy (1) decreases (2) increases (3) remains the same 10 Two forces, F1 and F2, are applied to a block on a frictionless, horizontal surface as shown below. F1 = 12 N Block 16 A spring with a spring constant of 4.0 newtons per meter is compressed by a force of 1.2 newtons. What is the total elastic potential energy stored in this compressed spring? (1) 0.18 J (3) 0.60 J (2) 0.36 J (4) 4.8 J F2 = 2 N Frictionless surface If the magnitude of the block s acceleration is 2.0 meters per second2, what is the mass of the block? (1) 1 kg (3) 6 kg (2) 5 kg (4) 7 kg 17 A distance of 1.0 meter separates the centers of two small charged spheres. The spheres exert gravitational force Fg and electrostatic force Fe on each other. If the distance between the spheres centers is increased to 3.0 meters, the gravitational force and electrostatic force, respectively, may be represented as 11 Which body is in equilibrium? (1) a satellite orbiting Earth in a circular orbit (2) a ball falling freely toward the surface of Earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory (1) (2) 9 Fg 3 and Fe 9 (3) 3Fg and 3Fe and Fe 3 (4) 9Fg and 9Fe 18 The electrical resistance of a metallic conductor is inversely proportional to its (1) temperature (3) cross-sectional area (2) length (4) resistivity 12 What is the weight of a 2.00-kilogram object on the surface of Earth? (1) 4.91 N (3) 9.81 N (2) 2.00 N (4) 19.6 N 19 In a simple electric circuit, a 24-ohm resistor is connected across a 6.0-volt battery. What is the current in the circuit? (1) 1.0 A (3) 140 A (2) 0.25 A (4) 4.0 A 13 A 70.-kilogram cyclist develops 210 watts of power while pedaling at a constant velocity of 7.0 meters per second east. What average force is exerted eastward on the bicycle to maintain this constant speed? (1) 490 N (3) 3.0 N (2) 30. N (4) 0 N 20 An operating 100.-watt lamp is connected to a 120-volt outlet. What is the total electrical energy used by the lamp in 60. seconds? (1) 0.60 J (3) 6.0 103 J (2) 1.7 J (4) 7.2 103 J 14 The gravitational potential energy, with respect to Earth, that is possessed by an object is dependent on the object s (1) acceleration (3) position (2) momentum (4) speed Physics June 09 Fg [3] [OVER] 21 A beam of electrons is directed into the electric field between two oppositely charged parallel plates, as shown in the diagram below. + + + + + + 24 Which type of wave requires a material medium through which to travel? (1) sound (3) television (2) radio (4) x ray + 25 A periodic wave is produced by a vibrating tuning fork. The amplitude of the wave would be greater if the tuning fork were (1) struck more softly (2) struck harder (3) replaced by a lower frequency tuning fork (4) replaced by a higher frequency tuning fork Electron beam The electrostatic force exerted on the electrons by the electric field is directed (1) into the page (2) out of the page (3) toward the bottom of the page (4) toward the top of the page 26 The sound wave produced by a trumpet has a frequency of 440 hertz. What is the distance between successive compressions in this sound wave as it travels through air at STP? (1) 1.5 10 6 m (3) 1.3 m (2) 0.75 m (4) 6.8 105 m 22 When two ring magnets are placed on a pencil, magnet A remains suspended above magnet B, as shown below. 27 The diagram below represents a light ray striking the boundary between air and glass. Normal A B Air Which statement describes the gravitational force and the magnetic force acting on magnet A due to magnet B? (1) The gravitational force is attractive and the magnetic force is repulsive. (2) The gravitational force is repulsive and the magnetic force is attractive. (3) Both the gravitational force and the magnetic force are attractive. (4) Both the gravitational force and the magnetic force are repulsive. Glass What would be the angle between this light ray and its reflected ray? (1) 30. (3) 120. (2) 60. (4) 150. 28 In which way does blue light change as it travels from diamond into crown glass? (1) Its frequency decreases. (2) Its frequency increases. (3) Its speed decreases. (4) Its speed increases. 23 Which color of light has a wavelength of 5.0 10 7 meter in air? (1) blue (3) orange (2) green (4) violet Physics June 09 [4] 29 The diagram below shows two pulses approaching each other in a uniform medium. 32 An electron in the c level of a mercury atom returns to the ground state. Which photon energy could not be emitted by the atom during this process? (1) 0.22 eV (3) 4.86 eV (2) 4.64 eV (4) 5.43 eV 10. cm 5 cm 33 Which phenomenon provides evidence that light has a wave nature? (1) emission of light from an energy-level transition in a hydrogen atom (2) diffraction of light passing through a narrow opening (3) absorption of light by a black sheet of paper (4) reflection of light from a mirror Which diagram best represents the superposition of the two pulses? 7.5 cm 5 cm (1) (3) 34 When Earth and the Moon are separated by a distance of 3.84 108 meters, the magnitude of the gravitational force of attraction between them is 2.0 1020 newtons. What would be the magnitude of this gravitational force of attraction if Earth and the Moon were separated by a distance of 1.92 108 meters? (3) 4.0 1020 N (1) 5.0 1019 N 20 N (2) 2.0 10 (4) 8.0 1020 N 15 cm 5 cm (2) (4) 30 Sound waves strike a glass and cause it to shatter. This phenomenon illustrates (1) resonance (3) reflection (2) refraction (4) diffraction 35 The particles in a nucleus are held together primarily by the (1) strong force (3) electrostatic force (2) gravitational force (4) magnetic force 31 An alpha particle consists of two protons and two neutrons. What is the charge of an alpha particle? (1) 1.25 1019 C (3) 6.40 10 19 C (2) 2.00 C (4) 3.20 10 19 C Physics June 09 [5] [OVER] Part B 1 Answer all questions in this part. Directions (36 47): For each statement or question, write on the separate answer sheet the number of the word or expression that, of those given, best completes the statement or answers the question. 40 A motorcycle being driven on a dirt path hits a rock. Its 60.-kilogram cyclist is projected over the handlebars at 20. meters per second into a haystack. If the cyclist is brought to rest in 0.50 second, the magnitude of the average force exerted on the cyclist by the haystack is (1) 6.0 101 N (3) 1.2 103 N 2N (2) 5.9 10 (4) 2.4 103 N 36 The work done in lifting an apple one meter near Earth s surface is approximately (1) 1 J (3) 100 J (2) 0.01 J (4) 1000 J Base your answers to questions 37 and 38 on the graph below, which represents the motion of a car during a 6.0-second time interval. Base your answers to questions 41 and 42 on the information below. Velocity vs. Time Velocity (m/s) 15.0 A boy pushes his wagon at constant speed along a level sidewalk. The graph below represents the relationship between the horizontal force exerted by the boy and the distance the wagon moves. 10.0 5.0 Force vs. Distance 0.0 2.0 4.0 Time (s) 40.0 6.0 Force (N) 0.0 37 What is the acceleration of the car at t = 5.0 seconds? (1) 0.0 m/s2 (3) 2.5 m/s2 2 (2) 2.0 m/s (4) 10. m/s2 30.0 20.0 10.0 0.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Distance (m) 38 What is the total distance traveled by the car during this 6.0-second interval? (1) 10. m (3) 40. m (2) 20. m (4) 60. m 41 What is the total work done by the boy in pushing the wagon 4.0 meters? (1) 5.0 J (3) 120 J (2) 7.5 J (4) 180 J 39 A person weighing 785 newtons on the surface of Earth would weigh 298 newtons on the surface of Mars. What is the magnitude of the gravitational field strength on the surface of Mars? (1) 2.63 N/kg (3) 6.09 N/kg (2) 3.72 N/kg (4) 9.81 N/kg Physics June 09 42 As the boy pushes the wagon, what happens to the wagon s energy? (1) Gravitational potential energy increases. (2) Gravitational potential energy decreases. (3) Internal energy increases. (4) Internal energy decreases. [6] 46 A 3.0-ohm resistor and a 6.0-ohm resistor are connected in series in an operating electric circuit. If the current through the 3.0-ohm resistor is 4.0 amperes, what is the potential difference across the 6.0-ohm resistor? (1) 8.0 V (3) 12 V (2) 2.0 V (4) 24 V 43 Which is an SI unit for work done on an object? (1) (2) kg m2 s 2 kg m2 s kg m s (3) kg m (4) s2 44 The momentum of a photon, p, is given by the h equation p = where h is Planck s constant and is the photon s wavelength. Which equation correctly represents the energy of a photon in terms of its momentum? p (1) Ephoton = phc (3) Ephoton = c hp (2) Ephoton = (4) Ephoton = pc c 47 Which combination of resistors has the smallest equivalent resistance? (1) 2 2 (2) 45 A constant potential difference is applied across a variable resistor held at constant temperature. Which graph best represents the relationship between the resistance of the variable resistor and the current through it? 2 1 Current Current 2 (3) Resistance (1) 1 Resistance (3) (4) 1 Current Current 1 Resistance Resistance (2) (4) Physics June 09 [7] [OVER] Part B 2 Answer all questions in this part. Directions (48 59): Record your answers in the spaces provided in your answer booklet. 53 Two oppositely charged parallel metal plates, 1.00 centimeter apart, exert a force with a magnitude of 3.60 10 15 newton on an electron placed between the plates. Calculate the magnitude of the electric field strength between the plates. [Show all work, including the equation and substitution with units.] [2] 48 A cart travels 4.00 meters east and then 4.00 meters north. Determine the magnitude of the cart s resultant displacement. [1] 49 A 70-kilogram hockey player skating east on an ice rink is hit by a 0.1-kilogram hockey puck moving toward the west. The puck exerts a 50-newton force toward the west on the player. Determine the magnitude of the force that the player exerts on the puck during this collision. [1] 54 On the diagram in your answer booklet, sketch at least four electric field lines with arrowheads that represent the electric field around a negatively charged conducting sphere. [1] 50 On a snow-covered road, a car with a mass of 1.1 103 kilograms collides head-on with a van having a mass of 2.5 103 kilograms traveling at 8.0 meters per second. As a result of the collision, the vehicles lock together and immediately come to rest. Calculate the speed of the car immediately before the collision. [Neglect friction.] [Show all work, including the equation and substitution with units.] [2] 55 In the space in your answer booklet, draw a diagram of an operating circuit that includes: a battery as a source of potential difference two resistors in parallel with each other an ammeter that reads the total current in the circuit [2] 56 Calculate the resistance of a 900.-watt toaster operating at 120 volts. [Show all work, including the equation and substitution with units.] [2] 51 A baby and stroller have a total mass of 20. kilograms. A force of 36 newtons keeps the stroller moving in a circular path with a radius of 5.0 meters. Calculate the speed at which the stroller moves around the curve. [Show all work, including the equation and substitution with units.] [2] 57 A student and a physics teacher hold opposite ends of a horizontal spring stretched from west to east along a tabletop. Identify the directions in which the student should vibrate the end of the spring to produce transverse periodic waves. [1] 52 A 10.-newton force compresses a spring 0.25 meter from its equilibrium position. Calculate the spring constant of this spring. [Show all work, including the equation and substitution with units.] [2] Physics June 09 [8] Base your answers to questions 58 and 59 on the information and diagram below. The vertical lines in the diagram represent compressions in a sound wave of constant frequency propagating to the right from a speaker toward an observer at point A. A Speaker 0 1.0 2.0 3.0 4.0 5.0 6.0 Distance (meters) 58 Determine the wavelength of this sound wave. [1] 59 The speaker is then moved at constant speed toward the observer at A. Compare the wavelength of the sound wave received by the observer while the speaker is moving to the wavelength observed when the speaker was at rest. [1] Physics June 09 [9] [OVER] Part C Answer all questions in this part. Directions (60 72): Record your answers in the spaces provided in your answer booklet. Base your answers to questions 60 through 62 on the information below. The path of a stunt car driven horizontally off a cliff is represented in the diagram below. After leaving the cliff, the car falls freely to point A in 0.50 second and to point B in 1.00 second. v A dy 0 B 8.0 16.0 Distance From Base of Cliff (m) 60 Determine the magnitude of the horizontal component of the velocity of the car at point B. [Neglect friction.] [1] 61 Determine the magnitude of the vertical velocity of the car at point A. [1] 62 Calculate the magnitude of the vertical displacement, dy, of the car from point A to point B. [Neglect friction.] [Show all work, including the equation and substitution with units.] [2] Physics June 09 [10] Base your answers to questions 63 through 65 on the information below. A roller coaster car has a mass of 290. kilograms. Starting from rest, the car acquires 3.13 105 joules of kinetic energy as it descends to the bottom of a hill in 5.3 seconds. 63 Calculate the height of the hill. [Neglect friction.] [Show all work, including the equation and substitution with units.] [2] 64 Calculate the speed of the roller coaster car at the bottom of the hill. [Show all work, including the equation and substitution with units.] [2] 65 Calculate the magnitude of the average acceleration of the roller coaster car as it descends to the bottom of the hill. [Show all work, including the equation and substitution with units.] [2] Base your answers to questions 66 and 67 on the information below. One end of a rope is attached to a variable speed drill and the other end is attached to a 5.0-kilogram mass. The rope is draped over a hook on a wall opposite the drill. When the drill rotates at a frequency of 20.0 Hz, standing waves of the same frequency are set up in the rope. The diagram below shows such a wave pattern. f = 20.0 Hz Drill 3.0 m 5.0 kg 66 Determine the wavelength of the waves producing the standing wave pattern. [1] 67 Calculate the speed of the wave in the rope. [Show all work, including the equation and substitution with units.] [2] Physics June 09 [11] [OVER] Base your answers to questions 68 and 69 on the information below. A ray of monochromatic light ( f = 5.09 1014 Hz) passes from air into Lucite at an angle of incidence of 30. . 68 Calculate the angle of refraction in the Lucite. [Show all work, including the equation and substitution with units.] [2] 69 Using a protractor and straightedge, on the diagram in your answer booklet, draw the refracted ray in the Lucite. [1] Base your answers to questions 70 through 72 on the information below. A photon with a frequency of 5.48 1014 hertz is emitted when an electron in a mercury atom falls to a lower energy level. 70 Identify the color of light associated with this photon. [1] 71 Calculate the energy of this photon in joules. [Show all work, including the equation and substitution with units.] [2] 72 Determine the energy of this photon in electronvolts. [1] Physics June 09 [12] The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PHYSICAL SETTING Tear Here PHYSICS Wednesday, June 24, 2009 9:15 a.m. to 12:15 p.m., only ANSWER SHEET I Male I Female Grade . . . . . . . . . . . . . Student . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sex: Teacher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . School . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Record your answers to Part A and Part B 1 on this answer sheet. Part B 1 Part A 1 ............ 13 . . . . . . . . . . . . 25 . . . . . . . . . . . 36 . . . . . . . . . . . . 42 . . . . . . . . . . . . 2 ............ 14 . . . . . . . . . . . . 26 . . . . . . . . . . . 37 . . . . . . . . . . . . 43 . . . . . . . . . . . . 3 ............ 15 . . . . . . . . . . . . 27 . . . . . . . . . . . 38 . . . . . . . . . . . . 44 . . . . . . . . . . . . 4 ............ 16 . . . . . . . . . . . . 28 . . . . . . . . . . . 39 . . . . . . . . . . . . 45 . . . . . . . . . . . . 5 ............ 17 . . . . . . . . . . . . 29 . . . . . . . . . . . 40 . . . . . . . . . . . . 46 . . . . . . . . . . . . 6 ............ 18 . . . . . . . . . . . . 30 . . . . . . . . . . . 41 . . . . . . . . . . . . 47 . . . . . . . . . . . . 7 ............ 19 . . . . . . . . . . . . 31 . . . . . . . . . . . 8 ............ 20 . . . . . . . . . . . . 32 . . . . . . . . . . . 9 ............ 21 . . . . . . . . . . . . 33 . . . . . . . . . . . 10 . . . . . . . . . . . . 22 . . . . . . . . . . . . 34 . . . . . . . . . . . 11 . . . . . . . . . . . . 23 . . . . . . . . . . . . 35 . . . . . . . . . . . 12 . . . . . . . . . . . . 24 . . . . . . . . . . . . Part B 1 Score Part A Score Write your answers to Part B 2 and Part C in your answer booklet. Tear Here The declaration below should be signed when you have completed the examination. I do hereby affirm, at the close of this examination, that I had no unlawful knowledge of the questions or answers prior to the examination and that I have neither given nor received assistance in answering any of the questions during the examination. Signature PS/PHYSICS Tear Here Tear Here PS/PHYSICS FOR TEACHERS ONLY The University of the State of New York REGENTS HIGH SCHOOL EXAMINATION PS P PHYSICAL SETTING/PHYSICS Wednesday, June 24, 2009 9:15 a.m. to 12:15 p.m., only SCORING KEY AND RATING GUIDE Directions to the Teacher: Refer to the directions on page 2 before rating student papers. Updated information regarding the rating of this examination may be posted on the New York State Education Department s web site during the rating period. Check this web site http://www.emsc.nysed.gov/osa/ and select the link Examination Scoring Information for any recently posted information regarding this examination. This site should be checked before the rating process for this examination begins and several times throughout the Regents examination period. Part A and Part B 1 Allow 1 credit for each correct response. Part B 1 Part A 1 . . . . . 3. . . . . 13 . . . . .2. . . . . 25 . . . . .2. . . . . 3 6 . . . . . 1. . . . . 42 . . . . .3 . . . . 2 . . . . .4 . . . . 1 4 . . . . . 3. . . . . 26 . . . . .2. . . . . 3 7 . . . . . 1. . . . . 43 . . . . .1 . . . . 3 . . . . . 1. . . . . 15 . . . . .3. . . . . 27 . . . . .3. . . . . 3 8 . . . . . 3. . . . . 44 . . . . .4 . . . . 4 . . . . . 4. . . . . 16 . . . . .1. . . . . 28 . . . . .4. . . . . 3 9 . . . . . 2. . . . . 45 . . . . .1 . . . . 5 . . . . . 3. . . . . 17 . . . . .1. . . . . 29 . . . . .2. . . . . 4 0 . . . . . 4. . . . . 46 . . . . .4 . . . . 6 . . . . . 2. . . . . 18 . . . . .3. . . . . 30 . . . . .1. . . . . 41 . . . . . 3 . . . . 47 . . . . . 3 . . . . 7 . . . . .2 . . . . 1 9 . . . . . 2. . . . . 31 . . . . .4. . . . . 8 . . . . .3 . . . . 2 0 . . . . . 3. . . . . 32 . . . . .4. . . . . 9 . . . . .4 . . . . 2 1 . . . . . 4. . . . . 33 . . . . .2. . . . . 1 0 . . . . . 2. . . . . 22 . . . . .1. . . . . 34 . . . . .4. . . . . 1 1 . . . . . 3. . . . . 23 . . . . .2. . . . . 35 . . . . .1. . . . . 1 2 . . . . . 4. . . . . 24 . . . . .1. . . . . PHYSICAL SETTING/PHYSICS continued Directions to the Teacher Follow the procedures below for scoring student answer papers for the Physical Setting/Physics examination. Additional information about scoring is provided in the publication Information for 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 of any kind. On the detachable answer sheet for Part A and Part B 1, indicate by means of a check mark each incorrect or omitted answer. In the box provided at the end of each part, record the number of questions the student answered correctly for that part. Students responses must be scored strictly according to the Scoring Key and Rating Guide. For open-ended questions, credit may be allowed for responses other than those given in the rating guide if the response is a scientifically 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 given to a response. Units need not be given when the wording of the questions allows such omissions. Raters should enter the scores earned for Part A, Part B 1, Part B 2, and Part C on the appropriate lines in the box printed on the answer booklet, and then should add these four 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 converted to a scaled score by using the conversion chart that will be posted on the Department s web site: http://www.emsc.nysed.gov/osa/ on Wednesday, June 24, 2009. 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 final examination score. All student answer papers that receive a scaled score of 60 through 64 must be scored a second time. For the second scoring, a different committee of 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 first rating of the paper. The school principal is responsible for assuring that the student s final examination score is based on a fair, accurate, and reliable scoring of the student s answer paper. Because scaled scores corresponding to raw scores in the conversion chart may change from one examination to another, it is crucial that for each administration, the conversion chart provided for that administration be used to determine the student s final score. [2] PHYSICAL SETTING/PHYSICS continued Please refer to the Department publication Regents Examination in Physical Setting/Physics: Rating Guide for Parts B 2 and C. This publication can be found on the New York State Education Department web site http://www.emsc.nysed.gov/osa/scire/scirearch/phyratg02.pdf. Teachers should become familiar with this guide before rating students papers. Scoring Criteria for Calculations For each question requiring the student to show all calculations, including the equation and substitution with units, apply the following scoring criteria: x Allow 1 credit for the equation and substitution of values with units. If the equation and/or substitution with units is not shown, do not allow this credit. x Allow 1 credit for the correct answer (number and unit). If the number is given without the unit, do not allow this credit. x Penalize a student only once per equation for omitting units. x Allow full credit even if the answer is not expressed with the correct number of significant figures. Part B 2 48 [1] Allow 1 credit for 5.66 m. 49 [1] Allow 1 credit for 50 N. 50 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Examples of 2-credit responses: m1 v1 pbefore = pafter m1v1 + m2 v2 m2v2 v1 m1 v1 v1 0 m2 v2 (1.1 u 103 kg) v1 v1 18 m/s or (2.5 u 103 kg) (8.0 m/s) (2.5 u 103 kg) (8.0 m/s ) 1.1 u 103 kg 18 m/s or 18 m/s [3] [OVER] PHYSICAL SETTING/PHYSICS continued 51 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: mv 2 Fc = r Fcr v= m (36 N) (5.0 m) 20. kg v v 3.0 m/s 52 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: Fs k= k k kx Fs x 10. N 0.25 m 40. N/m 53 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: Fe q 3 .6 0 u 1 0 1 5 N E= 1 .6 0 u 1 0 19 C E = 2 .2 5 u 1 0 4 N /C E= [4] PHYSICAL SETTING/PHYSICS continued 54 [1] Allow 1 credit for at least four straight lines drawn perpendicular to the surface of the sphere with each line having an arrowhead directed toward the sphere and ending within 0.2 cm of the sphere. Example of a 1-credit response: Note: Allow credit even if the lines are not drawn symmetrically. 55 [2] Allow a maximum of 2 credits, allocated as follows: x Allow 1 credit for two resistors connected in parallel with the battery (or cell) in a complete circuit. x Allow 1 credit for an ammeter connected in the circuit to measure the total current. Example of a 2-credit response: A Examples of 1-credit responses: A or A Note: Allow credit for lines not touching the battery if the distance from the lines to the battery is d the distance between the battery symbol lines. [5] [OVER] PHYSICAL SETTING/PHYSICS continued 56 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: V2 P= R V2 R= P 120 V R= 2 900. W R = 16 : 57 [1] Allow 1 credit. Acceptable responses include, but are not limited to: north and south up and down perpendicular to spring left and right Note: Do not allow credit for back and forth or east and west. 58 [1] Allow 1 credit for 1.5 m. 59 [1] Allow 1 credit for indicating that the wavelength is shorter while the speaker is moving or for an answer that is consistent with the student s response to question 58. [6] PHYSICAL SETTING/PHYSICS continued Part C 60 [1] Allow 1 credit for 16 m/s. 61 [1] Allow 1 credit for 4.9 m/s. 62 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: d = vi t + 1 at 2 2 1 d y = (4.9 m/s) (0.50 s) 2 (9.81 m/s 2 ) (0.50 s) 2 d y = 3.7 m Note: Allow credit for an answer that is consistent with the student s response to question 61. 63 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: 'KE 'h 'h 'h 'PE 'KE mg mg 'h 3.13 u 105 J (290. kg) (9.81 m/s 2) 110. m [7] [OVER] PHYSICAL SETTING/PHYSICS continued 64 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: KE v v v 1 mv 2 2 2 KE m 2 (3.13 u 105 J) 290. kg 46.5 m/s 65 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: a= a 'v t 46.5 m/s 5.3 s a = 8.8 m/s 2 Note: Allow credit for an answer that is consistent with the student s response to question 64. 66 [1] Allow 1 credit for 3.0 m or 3 m. 67 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: v= fO v = (20.0 Hz) (3.0 m) v 60. m/s Note: Allow credit for an answer that is consistent with the student s response to question 66. [8] PHYSICAL SETTING/PHYSICS continued 68 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in this rating guide. Example of a 2-credit response: n1 sin T1 n2 sin T2 sin T2 n1 sin T1 n2 (1.00) (sin 30. ) 1.50 T2 = 19 sin T2 = 69 [1] Allow 1 credit for a response correctly showing the refracted ray at 19q r 2q to the normal. Example of a 1 credit response: Normal 30.q Air Lucite 19q Note: Allow credit even if the arrowhead is missing. Allow credit for an answer that is consistent with the student s response to question 68. [9] [OVER] PHYSICAL SETTING/PHYSICS concluded 70 [1] Allow 1 credit for green. 71 [2] Allow a maximum of 2 credits. Refer to Scoring Criteria for Calculations in the rating guide. Example of a 2-credit response: E photon = hf E photon = (6.63 u 10 34 J < s) (5.48 u 1014 Hz) E photon = 3.63 u 10 19 J 72 [1] Allow 1 credit for 2.27 eV. Note: Allow credit for an answer that is consistent with the student s response to question 71. [10] Regents Examination in Physical Setting/Physics June 2009 Chart for Converting Total Test Raw Scores to Final Examination Scores (Scaled Scores) The Chart for Determining the Final Examination Score for the June 2009 Regents Examination in Physical Setting/Physics will be posted on the Department s web site http://www.emsc.nysed.gov/osa/ on Wednesday, June 24, 2009. Conversion charts provided for previous administrations of the Regents Examination in Physical Setting/Physics must NOT be used to determine students final scores for this administration. Online Submission of Teacher Evaluations of the Test to the Department Suggestions and feedback from teachers provide an important contribution to the test development process. The Department provides an online evaluation form for State assessments. It contains spaces for teachers to respond to several specific questions and to make suggestions. Instructions for completing the evaluation form are as follows: 1. Go to www.emsc.nysed.gov/osa/exameval. 2. Select the test title. 3. Complete the required demographic fields. 4. Complete each evaluation question and provide comments in the space provided. 5. Click the SUBMIT button at the bottom of the page to submit the completed form. [11] Map to Core Curriculum June 2009 Physical Setting/Physics Question Numbers Part A 1 35 Standard 1 Part B 36 59 Part C 60 72 19,20,26,28,32,34 39,40,41,42,43,44,45, 46,47,49,51,52,53,56 63,64,65,67,68, 71,72 9 54 Key Ideas Math Key Idea 1 Math Key Idea 2 1,2,4,5,7,8,10,12,13,14,16,17,18, Math Key Idea 3 Sci. Inq. Key Idea 1 70 Sci. Inq. Key Idea 2 Sci. Inq. Key Idea 3 23 Eng. Des. Key Idea 1 Standard 2 Key Idea 1 Key Idea 2 Standard 6 Key Idea 1 Key Idea 2 Key Idea 3 36 Key Idea 4 Key Idea 5 17,18 Key Idea 6 Standard 7 Key Idea 1 Key Idea 2 Standard 4 Process Skills 4.1 4.3 55 29 57,58,59 37,38,48,50 5.1 66,69 60,61,62 5.3 Standard 4 4.1 13,14,15,16,18,19,20,21 36,41,42,43,45,46,47, 55,56 63,64 4.3 23,24,25,26,27,28,29,30 36,41,42,43,45,46,47, 57,58,59 66,67,68,69,70 5.1 1,2,3,4,5,6,7,8,9,10,11,12,17,22,34 37,38,39,40,48,49,50, 51,52,53,54 60,61,62,65 5.3 31,32,33,35, 44 71,72 [12]

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Additional Info : Scoring key after the questions.
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