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SECTION A: 100 MARKS BAHAGIAN A: 100 MARKAH INSTRUCTION: This section consists of SIX (6) structured questions. Answer FOUR (4) questions only. ARAHAN: Bahagian ini mengandungi ENAM (6) soalan berstruktur. Jawab EMPAT (4) soalan sahaja. QUESTION 1 SOALAN 1 C1 (a) Define the terms below: Berikan definisi bagi istilah berikut: i. Base quantity [2 marks] Kuantiti asas ii. Derived quantity [2 marks] Kuantiti terbitan C2 (b) Determine the reading of the following measurement tools by stating the scientific notation. Nyatakan nilai bacaan bagi alat pengukuran berikut dan nyatakan dalam bentuk saintifik. i. [3 marks] [3 markah] 2 SULIT

ii. [3 marks] [3 markah] (c) Convert the following units. Tukarkan unit-unit yang berikut. i. 100.5 mm 3 into cm 3. [3 marks] 100.5 mm 3 kepada cm 3. [3 markah] ii. 20 m/s 2 into km/h 2. [3 marks] 20 m/s 2 kepada km/h 2. [3 markah] iii. 10 g/cm 3 into kg/m 3. [3 marks] 10 g/cm 3 kepada kg/m 3. [3 markah] iv. 20 Nm -2 to knm -2 [3 marks] 20 Nm -2 kepada knm -2 [3 markah] v. 100 µm to m [3 marks] 100 µm kepada m [3 markah] 3 SULIT

QUESTION 2 SOALAN 2 C1 (a) Give the definition of the following terms with ONE (1) examples. Berikan takrifan pergerakan seragam dengan SATU (1) contoh. i. Uniform motion [2 marks] Pergerakan seragam ii. Non-linear motion [2 marks] Pergerakan tidak seragam C2 (b) State THREE(3) differences between speed and velocity. Nyatakan THREE(3) perbezaan di antara laju dan halaju. [6 marks] [6 markah] (c) Halim is driving his car with velocity of 70 m/s. He steps on his brake to reduce the velocity of the car to 30 m/s after travelling 50 m. Calculate the deceleration and the time taken while the car decelerates. Halim memandu keretanya dengan halaju 70 m/s. Dia menekan brek untuk mengurangkan halaju kereta kepada 30 m/s selepas perjalanan 50 m. Kira nyahpecutan dan masa yang diambil semasa kereta mengalami nyahpecutan. [5 marks] [5 markah] 4 SULIT

(d) A car starts from 30 m/s and accelerates at a constant acceleration of 4m/s 2 for 10 s. Then it travels at a constant velocity for 15 s. Then, the brakes are applied and the car stops in 9 s. Sebuah kereta bermula dari 30 m/s dan memecut dengan pecutan seragam, 4m/s 2 selama 10 s. Kemudian ia bergerak pada halaju seragam selama 15 s. Brek kemudiannya ditekan dan kereta berhenti dalam masa 9 s. i. Calculate the maximum velocity attained by the car Kirakan halaju maksimum yang dicapai oleh kereta [2 marks] ii. Sketch a velocity-time graph for the whole journey Lakarkan graf halaju-masa untuk keseluruhan perjalanan iii. From the velocity-time graph, determine the total distance traveled Daripada graf halaju-masa, tentukan jumlah jarak yang dilalui 5 SULIT

QUESTION 3 SOALAN 3 C1 (a) State the definition and SI units of the terms below: Nyatakan definisi dan unit SI bagi sebutan di bawah; i. Force [2marks] Daya ii. Moment [2 marks] Momen C2 (b) i. An object with the mass of 50 kg is placed on a smooth floor and being pulled by a force of 80 N. Find the acceleration of the object. Sebuah objek seberat 50 kg telah diletakkan di atas lantai dan ditarik dengan daya 80 N. Cari pecutan objek tersebut. [2 marks] ii. Calculate the net force acting on the x-axis and y-axis of an object in Figure 3(a). Kira daya bersih yang bertindak pada paksi x dan paksi y bagi objek dalam Rajah 3(a). 30N 25N 8N 15N 25N 15N Figure 3(a)/Rajah 3(a) 6 SULIT

(c) i. Calculate the magnitude and angle of the resultant force for the Figure 3(b). Kirakan magnitud dan sudut bagi daya paduan untuk Rajah 3(b). [8 marks] [8 markah] y-axis 20N 20 80N x-axis 10 60N Figure 3(b)/Rajah 3(b) ii. Find the centre of gravity of the Figure 3(c) so that it is in equilibrium. Cari pusat graviti bagi Rajah 3(c) supaya ia berada dalam keseimbangan. 40N 10N 1m 3m 4m 2m 20N 10 o 25N Figure 3(c)/Rajah 3 (c) [7 marks] [7 markah] 7 SULIT

QUESTION 4 SOALAN 4 C1 (a) Define each of the following terms and state the SI unit. Berikan takrifan setiap yang berikut dan nyatakan dalam unit SI. i. Potential Energy. [2 marks] Tenaga Keupayaan. ii. Kinetic Energy. Tenaga Kinetik. [2 marks] C2 (b) Ahmad lifts a 50 kg hiking bag onto his shoulders through a vertical distance of 1.65 m in 3 s. Calculate the work done and power produced by Ahmad. Ahmad mengangkat 50 kg beg mendaki ke bahu melalui jarak menegak 1.65 m dalam masa 3 saat. Kirakan kerja dan kuasa yang dihasilkan oleh Ahmad. [6 marks] [6 markah] (c) A durian with mass of 1.5 kg falls from a tree branch which is 5 m high from the ground. Calculate : Sebiji durian dengan jisim 1.5 kg gugur dari dahan pokok yang berketinggian 5 m dari tanah. Kirakan: i. Potential energy while the durian is still at the tree branch. Tenaga keupayaan sewaktu durian tersebut masih berada di dahan pokok. [3 marks] [3 markah] 8 SULIT

ii. Potential Energy and Kinetic Energy when the durian falls 3 m from the tree. Tenaga Kinetik dan Tenaga Keupayaan apabila durian tersebut gugur bebas sejauh 3 m. [5 marks] [5 markah] iii. Velocity of the durian just before touches the ground. Halaju durian tersebut sebelum mencecah tanah. [3 marks] [3markah] (d) A water pump is running at an efficiency of 88.24% with power output of 7.5 kw to deliver clean water to Water Supply Tank. Calculate the power input of the water pump in watt. Sebuah pam air berfungsi dengan kecekapan 88.24% telah menghasilkan kuasa output 7.5 kw untuk menghantar bekalan air bersih ke Tangki Bekalan Air. Kirakan kuasa input pam air tersebut dalam unit Watt. 9 SULIT

QUESTION 5 SOALAN 5 C1 (a) State TWO (2) characteristics of solid and gas. Nyatakan DUA (2) ciri-ciri pepejal dan gas. C2 (b) A cube as in Figure 5 (a) has dimensions of 0.25 m with a mass of 890 g. Find the density of the cube. Sebuah kiub seperti di Rajah 5(a) mempunyai dimensi 0.25 m dengan jisim sebanyak 890 g. Cari ketumpatan kiub tersebut. [6 marks] [6 markah] 0.25 m Figure 5(a) / Rajah 5(a) (c) Figure 5(b) shows a simple hydraulic system. Rajah 5 (b) menunjukkan sistem hidraulik mudah. 3 kg Piston A Load P Piston B Area = 0.45 m 2 Area = 4.5 m 2 Figure 5(b) /Rajah 5(b) 10 SULIT

i. If 3 kg of load are placed on piston A, determine the force should be applied at piston B. (use, g = 9.81 m/s 2 ) Jika 3 kg beban diletakkan pada omboh A, tentukan daya yang dikenakan pada omboh B. (guna, g = 9.81 m/s 2 ) [5 marks] [5 markah] ii. If piston A moves down by 2.5 m when force is applied, calculate the distance of piston B when it moves upward. Sekiranya omboh A bergerak ke bawah sebanyak 2.5 m setelah daya dikenakan, kirakan jarak omboh B apabila ia bergerak ke atas. iii. If load P is replaced with 180 kg of mass, determine the force should be applied on piston A in order to support the weights on piston B. (Acceleration due to gravity, g = 9.81 m/s 2 ) Jika beban P digantikan dengan jisim 180 kg, tentukan daya yang harus digunakan di omboh A untuk menyokong berat pada omboh B. (guna, g = 9.81 m/s 2 ) [6 marks] [6 markah] 11 SULIT

QUESTION 6 SOALAN 6 C1 (a) Give the definition for the following terms: Berikan definisi bagi istilah-istilah berikut: i. Heat Capacity [2 marks] Muatan Haba ii. Specific Heat Capacity. [2 marks] Muatan Haba Tentu. C2 (b) State THREE (3) methods of heat transfer and explain the process of each method. Nyatakan TIGA (3) kaedah pemindahan haba dan terangkan prosesnya. [6 marks] [6 markah] (b) The mass of X is 3.5 kg while the mass of Y is m kg. Given that the specific heat capacity of X is 4200 J/kg o C and Y is 390 J/kg o C, the initial temperature of X is 29 o C and Y is 80 o C. When X and Y are mixed, the final temperature of the mixture is 65 o C. Calculate : (Assume that no heat lost to the surrounding). Jisim bagi X ialah 3.5 kg manakala jisim bagi Y ialah m kg. Diberi muatan haba tentu bagi X ialah 4200 J/kg o C dan Y ialah 390 J/kg o C, suhu awal X ialah 29 o C dan Y ialah 80 o C. X dan Y dicampurkan, suhu akhir campuran ialah 65 o C. Kira : (Andaikan tiada kehilangan haba ke sekeliling). i. Heat of Y. Haba bagi Y. ii. Mass of Y. Jisim bagi Y. 12 SULIT

iii. Heat capacity for Y. [3 marks] Muatan Haba bagi Y. [3 markah] d) A 4 kg metal at temperature 600 o C is put into 3 kg of water at temperature 30 o C. Find the final temperature. (Specific heat capacity of metal is 120 J/kg o C, specific heat capacity of water is 4200 J/kg o C) 4 kg logam pada suhu 600 o C dimasukkan ke dalam 3 kg air pada suhu 30 o C. Kirakan suhu akhir. (Muatan haba tentu logam ialah 120 J/kg o C, muatan haba tentu air ialah 4200 J/kg o C) SOALAN TAMAT 13 SULIT