SPM Percubaan 2007 MRSM Physics Paper 3

CONFIDENTIAL 4531/3 PHYSICS Paper 3 August 2007 1 ½ hours Angka Giliran ….................................................................. Identity Card No.: ……………………………………..…. Name : ………………………………………………….… College No. : ………………. Class : ……………. 4531/3 MAKTAB RENDAH SAINS MARA SPM TRIAL EXAMINATION 2007 PHYSICS Paper 3 One hour and thirty minutes DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO Examiner’s code Section Question 1 A 2 1 B 2 TOTAL 12 12 12 Marks 16 Score 1. Write down your index no., identity card no., name, college no. and class in the space provided. 2. The questions are written in English and bahasa Malaysia. 3. Candidates are required to read the information on page 3. This booklet consists of 16 printed pages Buku soalan ini mengandungi 16 halaman bercetak 4531/3 ©2007 Copyright Bahagian Pendidikan dan Latihan (Menengah) MARA Turn over CONFIDENTIAL CONFIDENTIAL INFORMATION TO CANDIDATES MAKLUMAT UNTUK CALON 4531/3 1. 2. This question paper consists of two sections: Section A and Section B. Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B. Answer all questions in Section A. Write your answers for Section A in the spaces provided in the question paper. Jawab semua soalan daripada Bahagian A. Jawapan kepada Bahagian A hendaklah ditulis dalam ruang yang disediakan dalam kertas soalan. 3. Answer one question from Section B. Write your answers for Section B on the paper provided by invigilators. Answer questions in Section B in detail. Answers should be clear and logical. Equations, figures, tables, graphs and other suitable methods can be used to explain your answer. Jawab satu soalan daripada Bahagian B . Jawapan kepada Bahagian B hendaklah ditulis pada helaian tambahan yang dibekalkan oleh pengawas peperiksaan. Anda diminta menjawab dengan lebih terperinci. Jawapan mestilah jelas dan logik. Persamaan, gambar rajah, jadual, graf dan cara lain yang sesuai untuk menjelaskan jawapan anda boleh digunakan. 4 5. Show your working it may help you to get marks. Tunjukkan kerja mengira,ini membantu anda mendapatkan markah. If you wish to cancel any answer, neatly cross out the answer. Sekiranya anda hendak menukar jawapan, batalkan dengan kemas jawapan yang telah dibuat. Kemudian tulis jawapan yang baru. 6. 7. The figures in the questions provided are not drawn to scale unless stated. Rajah yang mengiringi soalan tidak dilukis mengikut skala kecuali dinyatakan. The marks allocated for each question or sub-section of a question are shown in brackets. Markah yang diperuntukkan bagi setiap soalan atau ceraian soalan ditunjukkan dalam kurungan) 8. 9. A booklet of four-figure mathematical tables is provided. Buku sifir matematik empat angka disediakan. You may use non-programmable scientific calculator. However, steps in calculation must be shown. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh diprogram. 10. The time suggested to complete Section A is 60 minutes and Section B is 30 minutes. Masa yang dicadangkan untuk menjawab Bahagian A ialah 60 minit dan Bahagian B ialah 30 minit 11. Hand in your answer sheets at the end of the examination. Serahkan kertas jawapan anda di akhir peperiksaan. 4531/3 CONFIDENTIAL CONFIDENTIAL Section A Bahagian A 4531/3 [28 marks /28 markah] Answer all questions Jawab semua soalan 1 A student carries out an experiment to investigate the relationship between the sine of the angle of incidence, i and the sine of the angle of refraction, r of a glass block. The arrangement of the apparatus for the experiment is shown in Figure 1.1 Seorang pelajar menjalankan eksperimen untuk mengkaji hubungan di antara sin sudut tuju,i dan sin sudut biasan,r bagi suatu blok kaca. Susunan alat radas eksperimen seperti yang ditunjukkan pada Rajah 1. Ray box Kotak sinar Protractor Protrektor M Incidence ray Sinar tuju i Glass block Bongkah kaca r N Refracted ray Sinar biasan FIGURE 1.1 /RAJAH 1.1 A ray of light is directed along the angle of incidence, i = 20o and forms the angle of refraction, r. The angle of refraction is measured by using a protractor. The corresponding reading of r1 , is shown in Figure 1.2 on page 5. The experiment is repeated by varying the angle of incidence, i, to 30o, 40o, 50o and 60o. The corresponding angles of refraction, r are shown in Figures 1.3, 1.4, 1.5 and 1.6 on pages 6 and 7 respectively. Satu sinar cahaya ditujukan ke bongkah kaca pada sudut tuju, i = 20o dan membentuk sudut biasan, r. Sudut biasan diukur dengan menggunakan protrektor. Bacaan sudut biasan, r1 yang sepadan ditunjukkan pada Rajah 1.2 pada halaman 5. Eksperimen ini diulangi dengan mengubah sudut tuju, i, kepada 30o, 40o, 50o dan 60o. Bacaan bagi sudut biasan, r yang sepadan ditunjukkan pada Rajah 1.3, 1.4, 1.5 dan 1.6 pada halaman 6 dan 7. 4531/3 Turn over CONFIDENTIAL CONFIDENTIAL 4531/3 i = 200 FIGURE 1.2 RAJAH 1.2 The reading of the angle of refraction, r when i = 200 Bacaan sudut biasan, r apabila sudut i = 200 4531/3 CONFIDENTIAL CONFIDENTIAL i = 300 4531/3 FIGURE 1.3 RAJAH 1.3 The reading of the angle of refraction, r when i = 300 Bacaan sudut biasan, r apabila sudut i = 300 i = 400 FIGURE 1.4 RAJAH 1.4 The reading of the angle of refraction, r when i = 400 Bacaan sudut biasan, r apabila sudut i = 400 Turn over 4531/3 CONFIDENTIAL CONFIDENTIAL i = 500 4531/3 FIGURE 1.5 RAJAH 1. The reading of the angle of refraction, r when i = 500 Bacaan sudut biasan, r apabila sudut i = 500 i = 600 FIGURE 1.6 RAJAH 1.6 The reading of the angle of refraction, r when i = 600 Bacaan sudut biasan, r apabila sudut i = 600 4531/3 CONFIDENTIAL CONFIDENTIAL 4531/3 For Examiner’s Use (a) For the experiment described on page 4 , identify Bagi eksperimen yang diterangkan di halaman 4 kenal pasti (i) the manipulated variable pembolehubah dimanipulasikan 1(a)(i) ………………………………………………………………………… [ 1 mark ] (ii) the responding variable pembolehubah bergerak balas 1(a)(ii) ………………………………………………………………………… [ 1 mark ] (iii) the fixed variable pembolehubah dimalarkan 1(a)(iii) ………………………………………………………………………… [ 1 mark ] (b) Determine the angle of incidence, i and the corresponding angle of refraction, r,. for Figures 1.2, 1.3, 1.4, 1.5 and 1.6. Tabulate your results for i, r, sin i and sin r in the space below. Tentukan nilai sudut tuju,i dan nilai sudut biasan, r yang sepadan pada Rajah 1.2, 1.3, 1.4, 1.5 dan 1.6, Jadualkan keputusan anda bagi i, r, sin i dan sin r pada ruang di bawah. 1(b) [ 6 marks ] Turn over 4531/3 CONFIDENTIAL CONFIDENTIAL 4531/3 For Examiner’s Use (c) On the graph paper on page 10, plot a graph of sin r against sin i. Pada kertas graf di halaman 8, lukiskan graf sin r melawan sin i. 1(c) [ 5 marks ] (d) Based on your graph, state the relationship between sin r and sin i. Berdasarkan graf anda, nyatakan hubungan di antara sin r and sin i. 1(d) ………………………………………………………………………………… [ 1 mark ] (e) State one precaution that should be taken to obtain the accurate readings of i. Nyatakan satu langkah berjaga-jaga yang perlu diambil untuk mendapatkan bacaan i yang jitu. ………………………………………………………………………………… 1(e) ………………………………………………………………………………… [ 1 mark ] Total 4531/3 CONFIDENTIAL CONFIDENTIAL Graph of sin r against sin i Graf sin r melawan sin i 4531/3 Turn over 4531/3 CONFIDENTIAL CONFIDENTIAL For Examiner’s Use 4531/3 2 A student carries out an experiment to investigate the relationship between pressure, P and depth, h of a liquid X at sea level. The pressure P is determined using the formula : P = Pliquid + Patm where Pliquid = pressure by column of liquidX Patm = atmospheric pressure Seorang murid menjalankan satu eksperimen untuk mengkaji hubungan di antara tekanan, P dengan kedalaman, h bagi satu cecair X pada paras laut. Tekanan P ditentukan menggunakan dengan rumus: P = Pcecair + Patm di mana Pcecair = tekanan okeh turus cecair X Patm = tekanan atmosfera (a) Based on the graph on page 11, determine the atmospheric pressure, Patm when h = 0 m. Show on the graph, how you determine the value of the atmospheric pressure. Berdasarkan graf di halaman 11, tentukan tekanan atmosfera, Patm apabila h = 0 m. Tunjukkan pada graf itu bagaimana anda menentukan nilai tekanan atomosfera. 2(a) Patm = ………………………. [ 2 marks ] (b) The density of the liquid can be determined from the formula Ketumpatan cecair boleh ditentukan oleh rumus ρ = 0.12 k where k is the gradient of the graph P against h di mana k adalah kecerunan graf P melawan h 9 (i) Calculate the gradient, k, of the graph P against h. Show on the graph how you determine k. Hitungkan kecerunan , k, bagi graf P melawan h Tunjukkan pada graf itu bagaimana anda menentukan nilai k. 2(b)(i) k = …………………….. [ 4 marks] 4531/3 CONFIDENTIAL CONFIDENTIAL Graph of P against h Graf P melawan h 4531/3 P / x 105 N m-2 1.06 1.05 1.04 1.03 1.02 1.01 1.00 0.99 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 h/m 4531/3 Turn over CONFIDENTIAL CONFIDENTIAL (ii) Determine the density of liquid, ρ Seterusnya tentukan nilai ketumpatan cecair ,ρ 4531/3 For Examiner’s Use 2(b)(ii) ρ = ………………………… kg m-3. [ 1 mark] (c) Based on the graph on Figure 2.1 on page 12, determine the pressure P exerted on the liquid when the depth of liquid, h = 0.5 m Berdasarkan graf pada Rajah 2.1 pada halaman 12, tentukan tekanan, P yang dikenakan ke atas cecair apabila nilai kedalaman, h = 0.5 m 2(c) P = ……………………………. [ 2 marks] (d) (i) If the liquid X is replaced with a denser liquid Y, what will happen to the value of k? Sekiranya cecair X digantikan dengan cecair Y yang lebih tumpat, apakah yang akan berlaku terhadap nilai k? 2(d)(i) ………………………………………………………………………… [ 1 mark] (ii) 2(d)(ii) ………………………………………………………………………… [ 1 mark] (e) State one precaution that should be taken to improve the results of this experiment. 2(e) Nyatakan satu langkah berjaga-jaga yang perlu diambil untuk memperbaiki keputusan eksperimen ini. Explain your answer. Terangkan jawapan anda. ………………………………………………………………………………… [ 1 mark] Total 4531/3 CONFIDENTIAL CONFIDENTIAL 4531/3 Section B Bahagian B [12 marks /12 markah] Answer any one questions. Jawab mana-mana satu soalan. 3 Figure 3(a) and 3(b) show two similar electric kettles used to boil water. The power ratings for the kettles are 240 V, 1000 W. It is found that the water in the kettle in Figure 3(b) boils faster than the water in the kettle in Figure 3(a). Rajah 3(a) dan 3(b) menunjukkan dua buah cerek elektrik yang serupa , digunakan untuk mendidihkan air. Kadar kuasa cerek-cerek tersebut adalah 240 V, 1000 W. Didapati air dalam cerek di Fajah 3(b) mendidih lebih cepat berbanding dengan air dalam cerek di Rajah 3(a). 240 V, 1000 W Figure 3(a) Rajah 3(a) 240 V, 1000 W Figure 3(b) Rajah 3(b) Based on the information and your observation above: Berdasarkan maklumat dan pemerhatian di atas : (a) (b) State one suitable inference. Nyatakan satu inferens yang sesuaI [1 mark] State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai. [1 mark] 4531/3 CONFIDENTIAL CONFIDENTIAL 4531/3 (c) Turn over With the use of apparatus such as immersion heater, measuring cylinder and other apparatus, describe an experiment framework to investigate the hypothesis stated in 3 (b) Dengan menggunakan radas seperti pemanas rendam, silinder penyukat dan lain-lain radas, terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang anda nyatakan di 3 (b). In your description state clearly the following: Dalam penerangan anda jelaskan perkara berikut: (i) (ii) (iii) (iv) (v) Aim of the experiment. Tujuan eksperimen Variables in the experiment Pembolehubah yang terlibat dalam eksperimen List of apparatus and materials Senarai radas dan bahan Arrangement of apparatus. Susunan radas The procedure of the experiment which includes the method of controlling the manipulated variable and the method of measuring the responding variable. Prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi dan kaedah mengukur pembolehubah bergerak balas. (vi) (vii) The way you would tabulate the data. Cara anda akan menjadualkan data. The way you would analyse the data. Cara anda akan menganalisis data [10 marks] 4531/3 CONFIDENTIAL CONFIDENTIAL 4 4531/3 Figure 4(a) and 4(b) show two similar bulbs, each is connected to a dry cell. The bulb in Figure 4(b) lights up brighter than the bulb in Figure 4(a). Rajah 4(a) dan 4(b) menunjukkan dua buah mentol serupa setiap satu yang disambung pada sebuah sel kering. Mentol dalamRrajah 4(b) menyala dengan lebih cerah berbanding dengan mentol dalam Rajah 4(a). Figure 4(a) Rajah 4(a) Figure 4(b) Rajah 4(b) Based on the information and your observation above: Berdasarkan maklumat dan pemerhatian di atas : (a) State one suitable inference. Nyatakan satu inferens yang sesuai . [1 mark] (b) State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai. [1 mark] 4531/3 Turn over CONFIDENTIAL CONFIDENTIAL 4531/3 (c) With the use of apparatus such as wire of different diameters and other apparatus, describe an experiment framework to investigate the hypothesis stated in 4 (b) Dengan menggunakan radas seperti dawai yang mempunyai diameter yang berbeza dan lain-lain radas, terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang anda nyatakan di 4 (b) In your description state clearly the following: Dalam penerangan anda jelaskan perkara berikut: (i) (ii) (iii) (iv) (v) Aim of the experiment. Tujuan eksperimen Variables in the experiment Pembolehubah yang terlibat dalam eksperimen List of apparatus and materials Senarai radas dan bahan Arrangement of apparatus. Susunan radas The procedure of the experiment which includes the method of controlling the manipulated variable and the method of measuring the responding variable. Prosedur eksperimen termasuk kaedah mengawal pembolehubah dimanipulasi dan kaedah mengukur pembolehubah bergerak balas.) (vi) (vii) The way you would tabulate the data. Cara anda akan menjadualkan data. The way you would analyse the data. Cara anda akan menganalisis data [10 marks] END OF QUESTION PAPER (KERTAS SOALAN TAMAT) 4531/3 CONFIDENTIAL