SYLLABUS AND SPECIMEN PAPERS PHYSICS STPM (960)

39TopicPeriodLearning Outcome NotesTheory Practical(b) Interpret the phase relationship between displacement and pressurevariation using diagrams andgraphs;(c) Solve problems related to propagation of sound waves.22.2 Sources of sound4 3 Candidates should be able to:(a) Explain the resonant modes of vibration in a stretched string using appropriate diagrams;(b) Use the formula Tv =to determine resonant frequencies of a stretched string;(c) Explain the resonant modes of vibration in air columns using appropriate diagrams for open pipe and closed pipe including end correction;(d) Solve problems regarding the resonance of sound produced, including the determination of end correction. 22.3 Intensity level ofsound2 Candidates should be able to:(a) Define intensity level of sound;(b) Use the formula 10010log .II =

40TopicPeriodLearning Outcome NotesTheory Practical22.4 Beat 2 Candidates should be able to:(a) Explain the formation of beats using the principle of superposition;Derivation of formula for beats frequency is required.(b) Use the formula for beat frequency,1 2 f f f = −.22.5 Doppler effect3 Candidates should be able to:(a) Explain Doppler effect for sound;For sourceand/or observermoving along the same line(b) Derive and solve problems using the formula'.osv u f fv u  =     23 Geometrical Optics9 323.1 Spherical mirrors2 Candidates should be able to:(a) Derive and use 2rf =for spherical mirrors; Prior knowledge of drawing ray diagrams to show the formation of images by concave andconvex mirrorsis required.The sign conventionmust be used consistently.(b) Use the formula u v f1 1 1+ =for spherical mirrors.

41TopicPeriodLearning Outcome NotesTheory Practical23.2 Refraction at spherical surfaces3 Candidates should be able to:(a) Use the formula nunvn nr1 2 2 1+ =−for refraction at spherical surfaces.23.3 Thin lenses 4 3 Candidates should be able to:(a) Derive the thin lens formula1 1 1u v f+ =and lensmaker’s equation  −= −1 21 111n r rnf mlmusing the formula 1 2 2 1 ;n n n nu v r−+ =(b) Solve problems using thin lens formula and lensmaker’s equation;(c) Use the formula for power of lens,1P ;f=(d) Solve problems relating to combination of a thin lenseand a spherical mirror orcombination of two thin lenses.Including two thin lenses in contact24 Wave Optics 20 324.1 Huygens’s principle2 Candidates should be able to:(a) State the Huygens’s principle;(b) Apply the Huygens’s principle to explain reflection, refraction, interference and diffraction of waves with the aid of diagrams.

42TopicPeriodLearning Outcome NotesTheory Practical24.2 Interference 3 Candidates should be able to:(a) Explain coherence;(b) Explain optical path difference;(c) State the conditions for constructive and destructive interferences involving optical path difference;(d) Solve problems relating to interference.24.3 Two-slit interference pattern3 Candidates should be able to:(a) Explain the formation ofYoung’s two-slit interference pattern;(b) Derive and use the formula for the fringe separation, .Dxa=(c) Solve problems relating to Young’s two-slit interference.24.4 Interference in a thin film3 Candidates should be able to:(a) Explain the phenomenon of thin film interference for nearly normal incident light;(b) Solve problems relating to thin film interference.24.5 Diffraction by a single slit3 Candidates should be able to:(a) Explain the diffraction pattern for a single slit;(b) Derive and use the formulasina =for the first minimum;

43TopicPeriodLearning Outcome NotesTheory Practical(c) Explain the resolving power of an aperture, ;a =For circular aperture,  =a1.22(d) Use the formula .a =24.6 Diffraction gratings3 3 Candidates should be able to:(a) Explain the diffraction pattern for a diffraction grating;(b) Derive and use the formula for a diffraction grating,d m sin  = ;(c) Describe the use of a diffraction grating to formthe spectrum of white light;(d) Describe the use of a diffraction grating to determine the wavelength of monochromatic light.24.7 Polarisation 2 Candidates should be able to:(a) Explain polarised light;(b) Explain the polarisation of light obtained by using a polariser;(c) State Malus’s law;(d) Use the formulaI = I0 cos2 ;(e) Explain the polarisation of light obtained by reflection;(f) Derive and use Brewster’s law, 21tan . Bnn =

44TopicPeriodLearning Outcome NotesTheory Practical24.8 Optical waveguides1 Candidates should be able to:(a) Explain the basic principles of fibre opticsas optical waveguides;Prior knowledge oftotal internal reflection is required(b) State the applications of fibre optics.25 Quantum Physics 21 325.1 Photons 6 3 Candidates should be able to:(a) State Planck quantum theory of radiation;(b) Use equation E hf = ;(c) Describe the important observations in photoelectric experiments;(d) Explain stopping potential; (e) Use the formula 2s max12eV mv = ;(f) Explain the features of the photoelectric effect that cannot be explained by wave theory; (g) Explain work function and threshold frequency;(h) Use Einstein’s equation for the photoelectric effect,2max12hf W mv = + ;(i) Explain photovoltaic effect in a solar cell.

45TopicPeriodLearning Outcome NotesTheory Practical25.2 Wave-particle duality3 Candidates should be able to:(a) State de Broglie’s hypothesis;(b) Use de Broglie’swavelength, ;hp =(c) Interpret the electron diffraction pattern asevidence of the wave nature of electrons;(d) Explain the advantage of an electron microscope as compared to an optical microscope in terms of resolving power only.25.3 Atomicstructure5 Candidates should be able to:(a) State Bohr’s postulates for a hydrogen atom;(b) Derive and use an expression for the radii of the orbits, 2 202n hrme= in Bohr’s model;(c) Derive and use the formula 422208ne m E h n= − for Bohr’s model of hydrogen atom;(d) Explain the production of emission and absorption line spectra with reference to the transitions between energy levels;(e) Explain excitation energyand ionisation energy.

46TopicPeriodLearning Outcome NotesTheory Practical25.4 X-rays 6 Candidates should be able to:(a) Describe the production of X-rays in X-ray tube;(b) Explain the continuous spectrum and characteristic line spectrum;(c) Derive and use theequation min ;hceV =(d) Explain X-ray diffraction by two parallel adjacent atomic planes;(e) Derive and use Bragg’slaw, 2d sin  = m ;(f) State the applications of X-rays.25.5 Nanoscience 1 Candidates should be able to:(a) Explain nanoscience;(b) State the applications of nanoscience in electronics devices.26 Nuclear Physics 1826.1 Nucleus 6 Candidates should be able to:(a) Describe the discovery of protons and neutrons;Experimental details are not required.(b) Explain mass defect and binding energy;(c) Use the formula for mass-energy equivalence, E = mc2;(d) Relate and use unified atomic mass unit u, and unit eV;

47TopicPeriodLearning Outcome NotesTheory Practical(e) Sketch and interpret agraph of binding energy per nucleon against nucleon number.26.2 Radioactivity 6 Candidates should be able to:(a) Explain radioactive decay as a spontaneous and random processes; (b) Define radioactive activity, dd;NAt=(c) State radioactive decay law;(d) Use the formuladd;NNt= −(e) define decay constant, ;(f) Derive and use the formula 0e ;t N N −=(g) Derive and use the relation of12ln 2;t =(h) Solve problems involving applications of radioisotopes including as tracers in medical physics, agriculture and industry.26.3 Nuclear reactions6 Candidates should be able to:(a) State the conservation of nucleon number and charge in nuclear reactions;

48TopicPeriodLearning Outcome NotesTheory Practical(b) Apply the conservation of nucleon number and charge in nuclear reactions;(c) State the principle of mass-energy conservation to solve related problems in nuclear reactions;(d) Apply the principle of mass-energy conservation in nuclear reactions;(e) Explain the occurrence of fission and fusion using the graph of binding energy per nucleonagainst nucleon number;(f) Explain the chain reaction in nuclear fission; (g) Explain a controlled fission process in a reactor;(h) Explain a nuclear fusion process in the Sun;(i) State ways for propernuclear waste disposal.Total 105 15

49Coursework (Paper 4)The coursework is carried out by Form Six candidates from government and private schools approved by MEC.MEC determines 15 experiments to be carried out by the candidates and to be assessed by the subject teachers in schools in the respective semester. Details of the topic, title, objective, theory, apparatus and procedure for each experiment are specified in the Teacher’s and Student’s Manual for Physics Coursework which can be downloaded from the MEC Portal (http://www.mpm.edu.my) at the beginning of Semester 1 by the subject teachers.Each candidate will be given a worksheet one week before the experiment is carried out to enable the candidate to plan his work. The duration of each experiment is two hours. The candidate is assessed by the subject teacher during the experiment and from the laboratory report. The assessment should comply with the guidelines prepared by MEC.The Physics coursework for STPM is meant to improve the quality of candidates on the experimental skills. The candidates should be able to:(a) Perform a set or sequence of instructions,(b) Plan and carry out experiments using appropriate methods,(c) Identify suitable equipment and use them correctly and carefully,(d) Determine the best range of readings for more detailed and careful measurements,(e) Make observations, take measurements and record data with precision, accuracy and suitable units,(f) Recognise the importance of check readings and repeat readings,(g) Deduce the limits of accuracy of observations and measurements,(h) Present data and information clearly in appropriate forms,(i) Interpret, analyse and evaluate observations, experimental data, perform error analysis and make deductions,(j) Make conclusions based on the objective of the experiment,(k) Identify sources of error and suggest modifications for improvement,(l) Identify the safety measures which need to be taken,(m) Prepare a comprehensive report of the experiment,(n) Integrate scientific ethics and noble values.

50Written Practical Test (Paper 5)The main objective of the written practical test is to assess the candidates’ understanding of practical procedures in the laboratory.The following candidates are required to register for this paper:(a) Individual private candidates(b) Candidates from private schools which have no permission to carry out the coursework Candidates are required to answer three structured questions based the current coursework. Where appropriate, candidates will be given sufficient information to enable them to answer the questions. Only knowledge of theory within the syllabus and laboratory procedures will be expected.The questions will test the candidates’ ability to:(a) Record readings from diagrams of apparatus,(b) Complete tables of data and plot graphs,(c) Interpret, draw conclusions from, and evaluate observations and experimental data,(d) Recognise limitations of experiments and sources of errors,(e) Explain the effect of errors on experimental results,(f) Perform simple calculations and error analysis based on experiments,(g) Suggest precautions or safety measures,(h) Explain theoretical basis of experiments,(i) Predict experimental results when a certain parameter is varied,(j) Suggest or comment on experiment arrangement, techniques and procedures.

51List of ReferencesTeachers and candidates may use references such as those listed below, but not limited to.Allday, J., Adams, S., Ramsden, E., Barker, R., Barsby, D., Commons, R., Rizzo, G., Swales, M., Wood, I., Rounce, J. F., Lowe, T. L., Chambers, J. S., Crawshaw, D. J., Jefferson, B., Bowles, D., Mullan, E., Wiseman, G., Rayneau, J., Heylings, M., . . . Gaulter, B. (2020). Advanced Physics. Oxford University Press - Children.Giambattista A, Richardson B.M., Richardson R.C., (2020), College Physics, 5st ed. New York: Mc Graw Hill.Giancoli, D. C. (2018). Physics: Principles with Applications Volume I (Chs. 1-15). (n.p.): Pearson Education.Giancoli, D. (2022). Physics for Scientists & Engineers with Modern Physics Volume 2 (Chapters 21-35), Global Edition. Pearson.Halliday, D., Resnick, R., & Walker, J. (2023). Principles of Physics: extended, international adaptation. John Wiley & Sons.Halliday, D., Resnick, R., & Walker, J. (2021). Fundamentals of Physics, extended. John Wiley & Sons.Serway, R. A., & W, J. (2019). Physics for scientists and engineers with modern physics (10th ed.). Cengage.Young, H.D. and Freedman, R.A., (2020). University Physics with Modern Physics. 15th ed. California: Pearson Addison Wesley.

52GRADE AA Grade A candidate should be able to:• Show excellent understanding of the fundamental principles and concepts of Physics from the syllabus;• Synthesise most information from fundamental principles of different content areas in problem solving including usage of mathematical expressions, schematic diagrams, tables, graphs and numerical calculations;• Make appropriate assumptions and use the fundamental knowledge of Physics in analysing an unfamiliar situation; • Distinguish factors that cause errors in the analysis of experimental results;• Show excellent knowledge relating precision of data to the accuracy of the final result;• Interpret and evaluate critically the numerical answer in calculations;• Demonstrate high competency in practical skills; • Use proper techniques of operation and safety aspects of scientific equipment;• Demonstrate good attitudes, ethics, and values in the study and practice of Physics.GRADE CA Grade C candidate should be able to:• Show moderate understanding of the fundamental principles and concepts of Physics from the syllabus;• Identify information from fundamental principles of different content areas in problem solving including usage of mathematical expressions, schematic diagrams, tables, graphs and numerical calculations;• Make some assumptions and use the fundamental knowledge of Physics in familiar situation; • Identify factors that cause errors in the analysis of experimental results;• Show moderate knowledge relating precision of data to the accuracy of the final result;• Interpret and evaluate some numerical answer in calculations;• Demonstrate moderate competency in practical skills;• Use some proper techniques of operation and safety aspects of scientific equipment;• Indicate good attitudes, ethics, and values in the study and practice of Physics.PERFORMANCE DESCRIPTIONS

53GRADE DA Grade D candidate should be able to:• Show little understanding of the fundamental principles and concepts of Physics from the syllabus;• Identify limited information from fundamental principles of different content areas in problem solving including usage of mathematical expressions, schematic diagrams, tables, graphs and numerical calculations;• Make limited assumptions and use the fundamental knowledge of Physics in familiar situation; • Identify few factors that cause errors in the analysis of experimental results;• Show limited knowledge relating precision of data to the accuracy of the final result;• Show few numerical answers in calculations;• Show little competency in practical skills; • Use limited techniques of operation and safety aspects of scientific equipment;• Show good attitudes, ethics, and values in the study and practice of Physics.

54STPM Grading System Grade of Paper Grade of Subject Value of Subject Grade Level of Passing SubjectA A 4.00 Full passA- A- 3.67 Full passB+ B+ 3.33 Full passB B 3.00 Full passB- B- 2.67 Full passC+ C+ 2.33 Full passC C 2.00 Full passC- C- 1.67 Partial passD+ D+ 1.33 Partial passD D 1.00 Partial passF F 0.00 Fail

55Summary of Key Quantities and UnitsCandidates are expected to be familiar with the following quantities, their symbols, their units, and their interrelationships. They should also be able to perform calculations and deal with questions involving these quantities as indicated in the syllabus. The list should not be considered exhaustive.Quantity Usual symbols UnitsBase quantitiesAmount of matter n molElectric current I ALength L mMass M kgTemperature T KTime T sOther quantitiesAcceleration a m s–2Acceleration of free fall g m s–2Activity of radioactive source A s−1, BqAmplitude A mAngular displacement  , radAngular frequency  rad s–1Angular momentum L kg m2 rad s–1Angular speed , rad s–1Angular velocity , rad s–1Area A m2Atomic mass ma kgAtomic number (proton number) ZLight intensity I cdCapacitance C FChange of internal energy U JCharge carrier density n m–3Coefficient of friction Conductivity  –1m–1Critical angle c Current density J A m–2Decay constant  s–1Density  kg m–3Displacement s, x mDistance d mElectric charge Q, q C

56Quantity Usual symbols UnitsElectric field strength E N C–1Electric flux Φ N C–1 m2Electric potential V VElectric potential difference V, VVElectromotive force , E VElectron mass me kg, uElementary charge e CEmissivity e Energy E, U JFocal length f mForce F NForce constant k N m–1Frequency f HzGravitational field strength G N kg–1Gravitational potential V J kg–1Half-life t12sHeat Q JHeat capacity C J K–1Image distance v mImpedance Z Intensity I W m–2Internal energy U JLatent heat L JMagnetic flux Φ WbMagnetic flux density B TMagnification MMass number (nucleon number) AMass per unit length  kg m–1Molar heat capacity Cm J K–1 mol–1Molar mass M kg mol–1Molecular speed c m s–1Momentum p N s / kg m s–1Mutual inductance M HNeutron mass mn kg, uNeutron number NObject distance u mPeriod T sPermeability  H m–1Permeability of free space 0 H m–1Permittivity  F m–1

57Quantity Usual symbols UnitsPermittivity of free space 0 F m–1Phase difference  , radPotential energy U JPower P WPressure p PaMolar heat capacities at constant volume/pressureCV,m; Cp,m J K–1 mol–1Radius r mRatio of heat capacities Reactance X Refractive index n Relative atomic mass ArRelative molecular mass MrRelative permeability rRelative permittivity rResistance R Resistivity   mSelf-inductance L HSpecific heat capacity c J K–1 kg–1Specific latent heat l J kg–1Speed u, v m s–1Speed of electromagnetic waves c m s–1Stress  PaSurface charge density  C m–2Temperature T,  K, CTension T NThermal conductivity k W m–1 K–1Time constant  sTorque  N mVelocity u, v m s–1Volume V m3Wavelength  mWave number k m–1Weight W NWork W JWork function , W JYoung’s modulus E, Y Pa, N m–2

58960 PHYSICSValues of constantsAcceleration of free fall g = 9.81 m s–2Avogadro’s number NA = 6.02  1023 mol–1Boltzmann’s constant k, kB = 1.38  10–23 J K–1Elementary charge e = 1.60  10–19 CGravitational constant G = 6.67  10–11 N m2 kg–2Mass of the Earth ME = 5.97  1024 kgMass of the Sun MS = 1.99  1030 kgMolar gas constant R = 8.31 J K–1 mol–1Permeability of free space 0 = 4  10–7 H m–1Permittivity of free space 0 = 8.85  10−12 F m–1Planck’s constant h = 6.63  10–34 J sRadius of the Earth RE = 6.38  106 mRadius of the Sun RS = 6.96  108 mRest mass of electron me = 9.11  10–31 kgRest mass of proton mp = 1.67  10–27 kgSpeed of light in free space c = 3.00  108 m s–1Stefan-Boltzmann’s constant  = 5.67  10–8 W m–2 K–4Unified atomic mass unit u = 1.66  10–27 kgWien’s constant b = 2.90  10–3 m K

59SPECIMEN PAPER960/1(U1) STPM 960/1SIJIL TINGGI PERSEKOLAHAN MALAYSIA PHYSICS PAPER 1 (REPEAT 1) AND PAPER 1MAJLIS PEPERIKSAAN MALAYSIA(MALAYSIAN EXAMINATIONS COUNCIL)1 Hour 30 MinutesInstructions to candidates:DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE ALLOWED TO DO SO.Answer all questions in Section A, Section B and Section C. All working should be shown in Section B and Section C . For numerical answers, units should be quoted wherever appropriate.Answers may be written either in English or Malay.Arahan kepada calon:JANGAN BUKA KERTAS SOALAN INI SEHINGGA ANDA DIBENARKAN BERBUAT DEMIKIAN.Jawab semua soalan dalam Bahagian A, Bahagian B, dan Bahagian C. Semua kerja hendaklah ditunjukkan dalam Bahagian B, dan Bahagian C. Bagi jawapan berangka, unit hendaklah dinyatakan di mana-mana yang sesuai.Jawapan boleh ditulis dalam bahasa Inggeris atau bahasa Melayu.This question paper consists of printed pages and blank pages.(Kertas soalan ini terdiri daripada halaman bercetak dan halaman kosong.)© Majlis Peperiksaan MalaysiaSTPM 960/1(U1), 960/1

60Section A [20 marks]Answer all questions.Indicate the correct answer on the Multiple-choice Answer Sheet provided.1 In determining the density of a solid sphere, a student measures the diameter and the mass of the sphere. The percentage of errors in measuring the diameter and the mass are 2.0% and 3.0% respectively. What is the percentage error for the spherical density?A 5.0% B 8.0% C 9.0% D 11%2 An athlete jumps at an angle of 20.0 to the horizontal with a take-off speed of 11.0 m s–1. What is the distance of his jump?A 3.96 m B 4.22 m C 7.93 m D 12.3 m3 A block, P, of mass m on a smooth plane inclined at an angle of  to the horizontal is shown in the diagram below. P is connected to another block, Q, of mass M by a string over a frictionless pulley. If P is moving up the plane, what is the acceleration of P?Ag(M - m sin q)M + mBg(m sin q - M )M + mCg(M - m sin q)mDg(m sin q - M )m4 A coin is placed on a horizontal disc at a distance, r, from the axis of rotation. The disc is rotated with an increasing angular velocity. If the coefficient of static friction between the disc and the coin is µs, what is the maximum angular velocity so that the coin will not slip?Arg sBrg  s2Cgr sDrg s2STPM 960/1(U1), 960/1PQ

61Bahagian A [20 markah]Jawab semua soalan.Tandakan jawapan yang betul pada Borang Jawapan Aneka Pilihan yang dibekalkan.1 Dalam menentukan ketumpatan satu sfera pejal, seorang pelajar mengukur diameter dan jisim sfera itu. Peratusan ralat dalam pengukuran diameter dan jisim masing-masing ialah 2.0% dan 3.0%. Berapakah peratusan ralat bagi ketumpatan sfera itu?A 5.0% B 8.0% C 9.0% D 11%2 Seorang atlet melompat pada sudut 20.0 dengan ufukan dengan laju pelepasan 11.0 m s–1. Berapakah jarak lompatannya?A 3.96 m B 4.22 m C 7.93 m D 12.3 m3 Satu bongkah, P, berjisim m di atas suatu satah licin yang condong pada sudut  dengan ufukanditunjukkan dalam gambar rajah di bawah. P disambung kepada sebuah bongkah lain, Q, berjisim M oleh seutas tali melalui sebuah takal tanpa geseran. Jika P bergerak ke atas satah itu, berapakah pecutan bagi P?Ag(M - m sin q)M + mBg(m sin q - M )M + mCg(M - m sin q)mDg(m sin q - M )m4 Sekeping syiling diletakkan pada satu cakera mengufuk pada satu jarak, r, dari paksi putaran.Cakera itu berputar dengan peningkatan halaju sudut. Jika pekali geseran statik antara cakera itu dengan syiling ialah µs, berapakah halaju sudut maksimum supaya syiling itu tidak menggelongsor?Arg sBrg  s2Cgr sDrg s2STPM 960/1(U1), 960/1PQ

625 The variation of the resultant force, F, with time, t, for a car of mass 1000 kg initially at rest is shown in the graph below.What is the maximum velocity of the car? A 32 m s–1 B 35 m s–1 C 36 m s–1 D 37 m s–16 The variation of force, F, with velocity, v, of a car is shown in the graph below.When the velocity of the car increases from v1 to v2, the shaded area in the graph representsA an increase in the power of the carB an increase in the momentum of the carC an increase in the work done by the carD an increase in the kinetic energy of the car7 A mass tied to one end of an inelastic string is whirled in a horizontal motion with uniform speed. Which statement is true about the motion of the mass?A An outward force acts on the mass.B The net force that acts on the mass is zero.C The tension in the string enables the mass to move in a circular path.D The tension in the string is balanced by an outward force on the mass.STPM 960/1(U1), 960/112.0F/×103 N4.0−2.04.0 10.0 013.0 t/s

635 Ubahan bagi daya paduan, F, dengan masa, t, bagi sebuah kereta berjisim 1000 kg yang pada awalnya pegun ditunjukkan dalam graf di bawah.Berapakah halaju maksimum bagi kereta itu?A 32 m s–1 B 35 m s–1 C 36 m s–1 D 37 m s–16 Ubahan bagi daya, F, dengan halaju, v, bagi sebuah kereta ditunjukkan dalam graf di bawah.Apabila halaju kereta itu bertambah daripada v1 kepada v2, kawasan berlorek dalam graf mewakiliA pertambahan pada kuasa kereta ituB pertambahan pada momentum kereta ituC pertambahan pada kerja yang dilakukan oleh kereta ituD pertambahan pada tenaga kinetik kereta itu7 Satu jisim yang diikat pada satu hujung seutas tali tak kenyal diputarkan dalam satu gerakanmengufuk dengan laju seragam. Pernyataan yang manakah yang benar tentang gerakan jisim itu?A Daya ke luar bertindak pada jisim itu. B Daya bersih yang bertindak pada jisim ialah sifar. C Tegangan dalam tali membolehkan jisim bergerak dalam lintasan membulat. D Tegangan dalam tali diimbangi oleh daya ke luar pada jisim itu.STPM 960/1(U1), 960/112.0F/×103 N4.0−2.04.0 10.0 013.0 t/s

648 An ice-skater with his arms extended horizontally is spinning about the vertical axis through his body at a constant angular velocity. If the skater then pulls his arms to his sides, his rotational kinetic energy increases because A both his moment of inertia and angular momentum increaseB both his moment of inertia and angular momentum decreaseC his moment of inertia decreases but angular momentum increases D his moment of inertia decreases but angular momentum remains unchanged9 A boy of mass 20 kg is riding a carousel horse on the edge of the carousel of mass 100 kg and radius 2.00 m at constant angular velocity of 10 revolution per minute. The boy then moves to the center of the carousel. What is the new angular velocity of the system? [Moment of inertia of carousel is12MR2.]A 7.0 revolution per minute B 10 revolution per minuteC 12 revolution per minute D 14 revolution per minute10 Which graph represents the variation of gravitational potential, V, with distance, r, from the centre of the Earth for regions r > R?[R is the radius of the Earth.]A BC DSTPM 960/1(U1), 960/1V0R rV0rRV0rRV0R r

658 Seorang peluncur ais dengan lengannya didepa secara mengufuk berpusing pada paksi menegak melalui badannya pada halaju sudut malar. Jika peluncur ais itu menarik lengannya ke sisi badannya, tenaga kinetik putarannya meningkat keranaA kedua-dua momen inersia dan momentum sudut meningkatB kedua-dua momen inersia dan momentum sudut menurunC momen inersianya menurun tetapi momentum sudut meningkatD momen inersianya menurun tetapi momentum sudut kekal tidak berubah9 Seorang budak lelaki berjisim 20 kg menunggang kuda karusel pada hujung sebuah karuselberjisim 100 kg dan jejari 2.00 m pada halaju sudut malar pada 10 kisaran per minit. Budak lelaki itu kemudiannya bergerak ke pusat karusel itu. Berapakah halaju sudut yang baharu bagi sistem itu? [Momen inersia bagi karusel ialah12MR2.]A 7.0 kisaran per minit B 10 kisaran per minitC 12 kisaran per minit D 14 kisaran per minit 10 Graf yang manakah yang mewakili ubahan keupayaan graviti, V, dengan jarak, r, dari pusat Bumi untuk rantau r > rantau R?[R ialah jejari Bumi.]A BC DSTPM 960/1(U1), 960/1V0R rV0rRV0rRV0R r

6611 The mass of the Earth is 80 times greater than the mass of the Moon and the distance of the Moon from the Earth is 3.8 × 108 m. What is the distance from the Earth where the resultant gravitational field strength is zero? A 1.90 × 108 m B 3.42 × 108 m C 3.75 × 108 m D 3.80 × 108 m 12 A door of weight W is hinged at two points, P and Q. The reactions of the hinges on the door at Pand Q are R1 and R2 respectively. Which diagram shows the correct direction of the forces that acts on the door?A BC D13 Which statement is not true about the assumptions of the kinetic theory for ideal gas?A The attractions between the molecules are negligible.B The impact time is negligible compared to the time between collisions.C The volume of the molecules is negligible compared to the volume of the gas.D The collisions between the molecules and the wall of the container are inelastic.14 At a fixed temperature, what is the value of the ratio of r.m.s. speed of oxygen gas molecule to r.m.s. speed of carbon dioxide gas molecule?[Relative atomic masses of carbon and oxygen are 12 and 16 respectively.]A 0.85 B 1.17 C 1.38 D 3.46STPM 960/1(U1), 960/1

6711 Jisim bagi Bumi ialah 80 kali lebih besar daripada jisim bagi Bulan dan jarak bagi Bulan dari Bumi ialah 3.8 × 108 m. Berapakah jarak dari Bumi dengan kekuatan medan graviti paduan ialah sifar?A 1.90 × 108 m B 3.42 × 108 m C 3.75 × 108 m D 3.80 × 108 m 12 Sebuah pintu dengan berat W diengselkan pada dua titik, P dan Q. Tindak balas engsel pada pintu itu di P dan tindak balas engsel pada pintu itu di Q masing-masing ialah R1 dan R2. Gambar rajah yang manakah yang menunjukkan arah yang betul bagi daya yang bertindak pada pintu itu?A BC D13 Pernyataan yang manakah yang tidak benar tentang andaian teori kinetik bagi gas unggul?A Tarikan antara molekul boleh diabaikan.B Masa hentaman boleh diabaikan berbanding dengan masa antara perlanggaran.C Isi padu bagi molekul boleh diabaikan berbanding dengan isi padu bagi gas.D Perlanggaran antara molekul dengan dinding bekas adalah tak kenyal.14 Pada suhu tetap, berapakah nilai nisbah bagi laju p.m.k.d. molekul gas oksigen kepada laju p.m.k.d. molekul gas karbon dioksida?[Jisim atom relatif bagi karbon dan jisim atom relatif bagi oksigen masing-masing ialah 12 dan 16.]A 0.85 B 1.17 C 1.38 D 3.46STPM 960/1(U1), 960/1

6815 A stress against strain graph for a material is shown below. Initially, the material is stretched, and then allowed to contract. Which deduction is true about the material? A The material is stretched beyond the elastic limit.B The material is permanently deformed after the process.C The net work done in the process is stored as strain energy in the material.D The work done during stretching is more than the energy recovered during contracting.16 A container of volume V contains n mol of an ideal gas at pressure p and temperature T. If the molar heat capacity of the gas at constant volume isCV m, , what is the expression of the heatneeded to increase the temperature of the gas by 1 K at constant pressure?AV m,pV CT+BV m,pV nCT+CV m,npV CT+DV m,npV nCT+STPM 960/1(U1), 960/1

6915 Graf tegasan lawan terikan bagi suatu bahan ditunjukkan di bawah. Pada awalnya, bahan itu diregang, dan kemudian dibiarkan untuk mengecut. Deduksi yang manakah yang benar tentang bahan itu? A Bahan itu telah diregang melebihi had kekenyalan.B Bahan itu telah mengalami canggaan kekal selepas proses itu.C Kerja bersih yang dilakukan dalam proses itu disimpan sebagai tenaga terikan dalam bahan itu. D Kerja yang dilakukan semasa regangan adalah lebih daripada tenaga yang pulih semasa pengecutan.16 Sebuah bekas yang berisi padu V mengandungi n mol suatu gas unggul pada tekanan p dan suhu T. Jika muatan haba molar bagi gas itu pada isi padu malar ialah CV m, , apakah ungkapan bagi haba yang diperlukan untuk menaikkan suhu gas itu sebanyak 1 K pada tekanan malar?AV m,pV CT+BV m,pV nCT+CV m,npV CT+DV m,npV nCT+STPM 960/1(U1), 960/1

7017 A cyclic process, QRSTQ, for a gas is shown by the p-V graph below. Which statement is true about the cyclic process? A Heat is absorbed and the internal energy of the system increases. B Heat is released and the internal energy of the system decreases. C Heat is absorbed and the net work is done by the system. D Heat is released and the net work is done on the system.18 An ideal gas undergoes the following thermodynamic processes: P Q: Adiabatic compression Q R: Isothermal expansion back to its initial volumeR P: Cooling down at a constant volume back to its initial stateWhich graph represents the above processes?A BC DSTPM 960/1(U1), 960/1R QS TpVPressureVolumeQRPQ RPPressureVolumePressureVolumeQPRQ PRPressureVolume

7117 Satu proses kitaran, QRSTQ, bagi satu gas ditunjukkan oleh graf p-V di bawah. Pernyataan yang manakah yang benar tentang proses kitaran itu? A Haba diserap dan tenaga dalam bagi sistem itu bertambah. B Haba dibebaskan dan tenaga dalam bagi sistem itu berkurang. C Haba diserap dan kerja bersih dilakukan oleh sistem itu. D Haba dibebaskan dan kerja bersih dilakukan ke atas sistem itu.18 Suatu gas unggul mengalami proses termodinamik yang berikut:P Q: Pemampatan adiabatikQ R: Pengembangan isoterma kembali kepada isi padu asalR P: Penyejukan pada isi padu malar kembali kepada keadaan asalGraf yang manakah yang mewakili proses di atas? A BC DSTPM 960/1(U1), 960/1R QS TpVTekananIsi paduQRPQ RPTekananIsi paduQ PRTekananIsi paduTekananIsi paduQPR

7219 The thermal conductivity of a metal decreases when the temperature of the metal increases. This is due toA the speed of the free electrons of the metal increasesB the number of the free electrons of the metal decreasesC the diffusion rate of the free electrons of the metal increasesD the mean free time of the free electrons of the metal decreases20 Which graph shows the correct emission spectra of a black body at two different temperatures, T and To, where T > To ? A BC DSTPM 960/1(U1), 960/1ToTIntensity0 WavelengthIntensity0 WavelengthTToToTIntensity0 WavelengthTToIntensity0 Wavelength

7319 Kekonduksian terma bagi satu logam berkurang apabila suhu logam itu meningkat. Ini disebabkan oleh A laju elektron bebas bagi logam itu bertambahB bilangan elektron bebas bagi logam itu berkurang C kadar resapan elektron bebas bagi logam itu bertambahD min masa bebas elektron bebas bagi logam itu berkurang20 Graf yang manakah yang menunjukkan spektrum pemancaran yang betul bagi satu jasad hitam pada dua suhu yang berbeza, T dan To, dengan T > To ? A BC DSTPM 960/1(U1), 960/1ToTKeamatan0 Panjang gelombangTToKeamatan0 Panjang gelombangTToKeamatan0 Panjang gelombangToTKeamatan0 Panjang gelombang

74Section B [14 marks]Answer all questions. Write the answers on the answer sheets provided. Begin each answer on a new page of the answer sheet.21 A ball is thrown horizontally from the roof of a building of height H as shown in the diagram below.The initial speed of the ball is 16.0 m s–1. The ball hits the ground at an angle of 60.0 with the horizontal.(a) Assuming that air resistance is negligible, (i) determine the vertical velocity of the ball when it hits the ground [2](ii) determine H [2](iii) sketch a graph to show the variation of the height, h, of the ball with time, t [1](b) If there is air resistance, what is the effect on the angle when the ball hits the ground? Give a reason for your answer. [2]22 A double-paned window with an area of 6.0 m2consists of two panes of glasses, each with a thickness of 4.0 mm, separated by a thin layer of air with thickness 5.0 mm which is sealed between the panes. [Thermal conductivity of glass is 0.800 W m−1 K−1and thermal conductivity of air is 0.025 W m−1 K−1.](a) Explain the mechanism of heat conduction through the double-paned window. [2](b) If the temperature inside the house is 20 C and temperature outside the house is 35 C, calculate the rate flow of heat into the house. [3](c) Why does the layer of air must be thin? [2]STPM 960/1(U1), 960/116.0 m s–1HGround 60.0

75Bahagian B [14 markah]Jawab semua soalan. Tulis jawapan pada helaian jawapan yang disediakan. Mulakan setiap jawapan pada halaman baharu helaian jawapan.21 Sebiji bola dilontarkan secara mengufuk dari bumbung sebuah bangunan pada ketinggian Hseperti yang ditunjukkan dalam gambar rajah di bawah.Laju awal bagi bola itu ialah 16.0 m s–1. Bola itu sampai ke tanah pada sudut 60.0 dengan ufukan. (a) Andaikan bahawa rintangan udara boleh diabaikan,(i) tentukan halaju menegak bagi bola itu apabila bola itu sampai ke tanah [2](ii) tentukan H [2](iii) lakar satu graf untuk menunjukkan ubahan ketinggian, h, bagi bola itu dengan masa, t. [1](b) Jika terdapat rintangan udara, apakah kesan pada sudut apabila bola itu menghentam tanah? Beri sebab bagi jawapan anda. [2]22 Satu tingkap dwi lapis dengan luas 6.0 m2terdiri daripada dua lapisan kaca, setiap satu berketebalan 4.0 mm, terpisah oleh satu lapisan nipis udara berketebalan 5.0 mm yang dilapisi antara lapisan kaca.[Kekonduksian terma bagi kaca ialah 0.800 W m−1 K−1 dan kekonduksian terma bagi udara ialah 0.025 W m−1 K−1.](a) Jelaskan mekanisme bagi kekonduksian haba melalui tingkap dwi lapis itu. [2](b) Jika suhu di dalam rumah ialah 20 C dan suhu di luar rumah ialah 35 C, hitung kadar aliran haba ke dalam rumah itu. [3](c) Mengapakah lapisan udara itu mesti nipis? [2]STPM 960/1(U1), 960/116.0 m s–1HTanah 60.0

76Section C [26 marks]Answer all questions. Write the answers on the answer sheets provided. Begin each answer on a new page of the answer sheet.23 A spaceship is launched into an orbit around the Earth.(a) The spaceship can remain orbiting the Earth and then escape to planet Mars. How is this situation possible? Explain your answer. [9](b) If the spaceship is orbiting above the surface of the Earth from the distance of 280 km, determine the period of orbiting. [4]24 A container of volume V contains n moles of diatomic gas at pressure p and temperature T. (a) Discuss the effects on the motion and the degrees of freedom of the diatomic gas molecules when the temperature increases gradually from 30 K to 3000 K. [7](b) Using the law of equipartition of energy, deduce an expression for internal energy, U, of the gas in terms of V, p and degrees of freedom, f. [6]STPM 960/1(U1), 960/1

77Bahagian C [26 markah]Jawab semua soalan. Tulis jawapan pada helaian jawapan yang disediakan. Mulakan setiap jawapan pada halamanbaharu helaian jawapan.23 Sebuah kapal angkasa dilancarkan ke satu orbit yang mengeliling Bumi.(a) Kapal angkasa itu boleh kekal mengorbit Bumi dan kemudiannya terlepas ke planet Marikh.Bagaimanakah situasi ini boleh berlaku? Jelaskan jawapan anda. [9](b) Jika kapal angkasa itu mengorbit di atas permukaan Bumi dari jarak 280 km, tentukan tempohbagi orbit itu. [4]24 Sebuah bekas berisi padu V mengandungi n mol gas dwiatom pada tekanan p dan suhu T. (a) Bincangkan kesan pada gerakan dan kesan pada darjah kebebasan bagi gas molekul dwiatom apabila suhu meningkat secara perlahan daripada 30 K kepada 3000 K. [7](b) Menggunakan hukum kesamaan tenaga, deduksikan ungkapan bagi tenaga dalam, U, bagi gas dalam ungkapan V, p, dan darjah kebebasan, f. [6]STPM 960/1(U1), 960/1

78Values of constants(Nilai Pemalar)Acceleration of free fall (Pecutan jatuh bebas) g = 9.81 m s–2Avogadro’s number (Pemalar Avogadro) NA = 6.02  1023 mol–1Boltzmann’s constant (Pemalar Boltzmann) k, kB = 1.38  10–23 J K–1Elementary charge (Magnitud cas elektron) e = 1.60  10–19 CGravitational constant (Pemalar graviti) G = 6.67  10–11 N m2 kg–2Mass of the Earth (Jisim Bumi) ME = 5.97  1024 kgMass of the Sun (Jisim Matahari) MS = 1.99  1030 kgMolar gas constant (Pemalar gas molar) R = 8.31 J K–1 mol–1Permeability of free space (Ketelapan ruang bebas) 0 = 4  10–7 H m–1Permittivity of free space (Ketelusan ruang bebas) 0 = 8.85  10−12 F m–1Planck’s constant (Pemalar Planck) h = 6.63  10–34J sRadius of the Earth (Jejari Bumi) RE = 6.38  106 mRadius of the Sun (Jejari Matahari) RS = 6.96  108 mRest mass of electron (Jisim rehat elektron) me = 9.11  10–31 kgRest mass of proton (Jisim rehat proton) mp = 1.67  10–27 kgSpeed of light in free space (Laju cahaya dalam ruang bebas) c = 3.00  108 m s–1Stefan-Boltzmann’s constant (Pemalar Stefan-Boltzmann)  = 5.67  10–8 W m–2 K–4Unified atomic mass unit (Unit jisim atom bersatu) u = 1.66  10–27 kgWien’s constant (Pemalar Wien) b = 2.90  10–3 m KSTPM 960/1(U1), 960/1

79SPECIMEN PAPER960/2 STPM SIJIL TINGGI PERSEKOLAHAN MALAYSIA PHYSICS PAPER 2MAJLIS PEPERIKSAAN MALAYSIA(MALAYSIAN EXAMINATIONS COUNCIL)1 Hour 30 MinutesInstructions to candidates:DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE ALLOWED TO DO SO.Answer all questions in Section A, Section B and Section C. All working should be shown. For numerical answers, units should be quoted wherever appropriate.Answers may be written either in English or Malay.Arahan kepada calon:JANGAN BUKA KERTAS SOALAN INI SEHINGGA ANDA DIBENARKAN BERBUAT DEMIKIAN.Jawab semua soalan dalam Bahagian A, Bahagian B, dan Bahagian C. Semua kerja hendaklah ditunjukkan. Bagi jawapan berangka, unit hendaklah dinyatakan di mana-mana yang sesuai.Jawapan boleh ditulis dalam bahasa Inggeris atau bahasa Melayu.This question paper consists of printed pages and blank pages.(Kertas soalan ini terdiri daripada halaman bercetak dan halaman kosong.)© Majlis Peperiksaan MalaysiaSTPM 960/2

80Section A [20 marks]Answer all questions.Indicate the correct answer on the Multiple-choice Answer Sheet provided.1 A point charge, +q, in between two stationary charges, +3Q and +Q, is shown in the diagram below. If +q is in equilibrium, what is the value of the ratio of distance x to distance y?A31B13C3D 32 The electric field strength and electric potential at a distance r from a point charge are E and Vrespectively. What are the electric field strength and electric potential at a distance 2r from the charge?Electric field strength Electric potentialA12E12VB14E14VC12E14VD14E12V3 Four parallel plate capacitors, P, Q, R and S, are each filled by four different dielectric materialswith different permittivity and thickness are shown in the table below. Capacitor Permittivity ThicknessP 20 0.4 mmQ 30 0.8 mmR 40 1.0 mmS 50 1.2 mmIf the area of the plates is the same, which capacitor gives the highest capacitance?A P B Q C R D SSTPM 960/2+3Q +q +Qx y

81Bahagian A [20 markah]Jawab semua soalan.Tandakan jawapan yang betul pada Borang Jawapan Aneka Pilihan yang dibekalkan.1 Satu cas titik, +q, di antara dua cas pegun, +3Q dan +Q, ditunjukkan dalam gambar rajah dibawah. Jika +q berada dalam keseimbangan, berapakah nilai nisbah bagi jarak x kepada jarak yA31B13C3D 32 Kekuatan medan elektrik dan keupayaan elektrik pada jarak r dari satu cas titik masing-masingialah E dan V. Berapakah kekuatan medan elektrik dan keupayaan elektrik pada jarak 2r dari cas itu?Kekuatan medan elektrik Keupayaan elektrikA12E12VB14E14VC12E14VD14E12V3 Empat kapasitor plat selari, P, Q, R, dan S, setiap satu diisi oleh empat bahan dielektrik yang berbeza dengan ketelusan dan ketebalan yang berbeza ditunjukkan dalam jadual di bawah. Kapasitor Ketelusan KetebalanP 20 0.4 mmQ 30 0.8 mmR 40 1.0 mmS 50 1.2 mmJika luas plat itu adalah sama, kapasitor yang manakah yang memberikan kapasitans yang paling tinggi?A P B Q C R D SSTPM 960/2+3Q +q +Qx y

824 The variation of voltage, V, with time, t, for a discharging capacitor through a resistor is shown in the graph below. What is the time constant for the capacitor?A 0.1 s B 2 s C 10 s D 20 s5 Which statement is not true of the model used to explain the electrical conduction in a metal?A The kinetic energy for the random motion of the free electrons depends on the temperature of the metal.B The excess energy acquired by the free electrons in the electric field is lost during collisions with the lattice atoms.C The mean free time of the free electrons decreases as the temperature of the metal increases because the lattice atoms vibrate more strongly.D At any instant, all the free electrons are moving with the same drift velocity because the electrons are accelerated by the same electric fields.6 Which is the reason for a lamp to light up immediately as the switch in the circuit is closed?A The current flowing in the circuit is largeB The random velocity of the electrons is largeC The supplied potential difference in the circuit is largeD All the free electrons drift simultaneously in the circuit7 A metal strip of cross-sectional area, A, and length,,is connected to a voltage supply, V. If thecurrent flows through the metal strip is I, the conductivity of the strip isAIVABVAICVIADIAVSTPM 960/210 20ln V21t/ s

834 Ubahan bagi voltan, V, dengan masa, t, bagi satu kapasitor nyahcas melalui satu perintangditunjukkan dalam graf di bawah. Berapakah pemalar masa bagi kapasitor itu?A 0.1 s B 2 s C 10 s D 20 s5 Pernyataan yang manakah yang tidak benar tentang model yang digunakan untuk menjelaskan konduksi elektrik dalam satu logam?A Tenaga kinetik untuk gerakan rawak bagi elektron bebas bersandar pada suhu logam itu.B Tenaga lebihan yang diperoleh oleh elektron bebas dalam medan elektrik hilang semasa perlanggaran dengan atom kekisi.C Min masa bebas bagi elektron bebas berkurang apabila suhu logam itu meningkat kerana atom kekisi bergetar dengan lebih kuat.D Pada sebarang ketika, semua elektron bebas bergerak dengan halaju hanyut yang sama kerana elektron dipecut oleh medan elektrik yang sama.6 Yang manakah sebab bagi sebuah lampu bernyala serta-merta apabila suis dalam litar itu ditutup?A Arus yang mengalir dalam litar itu adalah besarB Halaju rawak bagi elektron itu adalah besarC Beza keupayaan yang dibekalkan dalam litar itu adalah besarD Semua elektron bebas hanyut secara serentak dalam litar itu7 Satu kepingan logam dengan luas keratan rentas, A, dan panjang,,disambung kepada satu bekalan voltan, V. Jika arus mengalir melalui kepingan logam itu ialah I, kekonduksian kepingan itu ialahAIVABVAICVIADIAVSTPM 960/210 20ln V21t/ s

848 A cell of e.m.f., ε, which is connected to three identical bulbs, R, S and T, and a rheostat, XY, is shown in the circuit diagram below. If the contact, P, of the rheostat is adjusted towards Y, which statement is true about the changes in the brightness of the three bulbs?A R, S and T become brighter. B R and T become brighter, but S becomes dimmer. C R becomes brighter, but S and T become dimmer.D R and S become brighter, but T becomes dimmer. 9 Which statement is not true about Kirchhoff’s laws?A The algebraic sum of e.m.f.s in a closed loop is equal to zero. B The algebraic sum of current entering a junction is equal to zero.C Kirchhoff’s first law is equivalent with the principle of conservation of charge.D Kirchhoff’s second law is equivalent with the principle of conservation of energy.10 Four resistors and a galvanometer are connected to a battery as shown in the circuit diagram below. If the reading of the galvanometer is zero, what is the resistance of X?A 1.0  B 16  C 46  D 100 STPM 960/240  10 X 4.0 GεSRPXYT

858 Satu sel dengan d.g.e., , yang disambung kepada tiga mentol seiras, R, S, T, dan satu reostat, XY,ditunjukkan dalam gambar rajah litar di bawah.Jika sesentuh, P, bagi reostat itu dilaraskan ke arah Y, pernyataan yang manakah yang benar tentang perubahan dalam kecerahan bagi tiga mentol itu?A R, S, dan T menjadi lebih cerah. B R dan T menjadi lebih cerah, tetapi S menjadi lebih malap. C R menjadi lebih cerah, tetapi S dan T menjadi lebih malap.D R dan S menjadi lebih cerah, tetapi T menjadi lebih malap. 9 Pernyataan yang manakah yang tidak benar tentang hukum Kirchhoff?A Jumlah algebra bagi d.g.e. dalam gelung tertutup adalah sama dengan sifar. B Jumlah algebra bagi arus yang memasuki pada satu simpang adalah sama dengan sifar. C Hukum Kirchhoff pertama adalah setara dengan hukum keabadian cas. D Hukum Kirchhoff kedua adalah setara dengan hukum keabadian tenaga. 10 Empat perintang dan satu galvanometer disambung kepada sebuah bateri seperti yang ditunjukkan dalam gambar rajah litar di bawah. Jika bacaan bagi galvanometer itu ialah sifar, berapakah rintangan bagi X?A 1.0  B 16  C 46  D 100 STPM 960/2εSRPXYT40  10 X 4.0 G

8611 A Hall voltage can be produced when current, I, flows in a thin semiconductor which is placed in a magnetic field, B. Which diagram will not produce Hall voltage?A BC D12 Which statement is not true about the motion of a charged particle entering a uniform magnetic field?A The path of the particle is parabolic if the direction of motion of the particle is parallel to the direction of the magnetic field.B The path of the particle is circular if the direction of motion of the particle is perpendicular tothe direction of the magnetic field.C The magnitude of the magnetic force is directly proportional to the charge of the particle.D The magnitude of the magnetic force is maximum if the direction of motion of the particle is perpendicular to the direction of the magnetic field.13 A straight rod of length 40 cm that carries a current of 20 A in a magnetic field of 2.0 T is shown in the diagram below.The magnetic field acts in the horizontal plane at an angle of  with the direction of the current. If the weight of the rod is 8.0 N and the magnetic force is just enough to balance the weight of the rod, what is the angle ?A 30 B 60 C 120 D 150STPM 960/2IBSemiconductor IBSemiconductorBISemiconductorIBSemiconductor20 AB = 2.0 T

8711 Satu voltan Hall boleh dihasilkan apabila arus, I, mengalir dalam satu semikonduktor nipis yang diletakkan dalam satu medan magnet, B. Gambar rajah yang manakah yang tidak menghasilkan voltan Hall?A BC D12 Pernyataan yang manakah yang tidak benar tentang gerakan satu zarah bercas yang memasuki suatu medan magnet seragam?A Lintasan bagi zarah itu adalah parabola jika arah gerakan bagi zarah itu selari dengan arah medan magnet.B Lintasan bagi zarah itu adalah membulat jika arah gerakan bagi zarah itu adalah berserenjang dengan arah medan magnet.C Magnitud bagi daya magnet berkadar terus dengan cas bagi zarah itu.D Magnitud bagi daya magnet adalah maksimum jika arah gerakan bagi zarah itu adalah berserenjang dengan arah medan magnet.13 Satu rod lurus yang panjangnya 40 cm yang membawa arus 20 A dalam satu medan magnet 2.0 T ditunjukkan dalam gambar rajah di bawah.Medan magnet itu bertindak dalam satah mengufuk pada sudut  dengan arah arus. Jika berat rod itu ialah 8.0 N dan daya magnet hanya cukup untuk mengimbangi berat rod itu, berapakah sudut ?A 30 B 60 C 120 D 150STPM 960/2IBSemikonduktor IBSemikonduktorBISemikonduktorIBSemikonduktor20 AB = 2.0 T

8814 Three parallel long wires, X, Y and Z, each carries current, I, of the same magnitude in the direction as shown in the diagram below. If the distances between X, Y and Z are the same, which diagram shows the directions of forces that acts on X, Y and Z?A BC D15 The plane of a circular coil is placed perpendicular to a uniform magnetic field. Which physical quantity does not influence the magnitude of the charge flow in the coil when the coil is pulled out from the magnetic field?A Area of the coilB Resistance of the coilC Magnetic flux densityD The time taken to pull the coil out from the magnetic fieldSTPM 960/2IX Y ZI IIX Y ZI I IX Y ZI IIX Y ZI I IX Y ZI I