Tiêu đề 20. DP024 KMK-PRA PSPM SET 3 - SKEMA.pdf ✅

SULIT DP024 DP024 Physics 2 Fizik 2 Semester 2 Semester 2 Session 2023/2024 Sesi 2023/2024 2 hours 2 Jam KOLEJ MATRIKULASI KEDAH PRA PEPERIKSAAN SEMESTER PROGRAM MATRIKULSI MATRICULATION PROGRAMME EXAMINATION JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU DO NOT OPEN THIS QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO SET 3 Kertas soalan ini mengandungi 7 halaman bercetak This question paper consists of 7 printed pages
1 (a) A progressive wave equation is given by y(x,t)= 0.6 sin (8πt + 0.4x) where y and x are in cm and t in s. Calculate the following from this wave equation: i) Amplitude of the wave. ii) Direction of the wave propagation. iii) Frequency of the wave. iv) Period. v) Wave number. vi) Wavelength. vii) Velocity of particle when t = 0.3 s and x = 0.3 cm. [11 marks] (b) Two waves, y1 and y2 propagating in opposite direction are given by the equations y1 = 20 sin (15t – 2x) and y2 = 20 sin (15t + 2x) where y and x are in meters and t in second. These two waves undergo superposition. (i) Name the resultant wave. (ii) Determine the equation of the resultant wave. . [2 marks] (c) A string that is exactly two meters long has a mass of 10.0 g. A transverse wave travels along this string at a speed of 50.0 m s-1 . Determine (i) The mass per unit length of the string.. (ii) The tension of the string. [3 marks]

2 (a) How many electron per second pass through a particular section of wire carrying a curent 0.50 A? [2marks] (b) You are given two resistors of 1 kΩ. How do you connect the resistors to a circuit that requires a 500 Ω resistance? Shows your suggestion [3 marks] (c) FIGURE 2 FIGURE 2 shows four identical bulbs connected to a 6 V battery and a switch. When the switch is off, the ammeter reading is 0.5 A. (i) Calculate the resistance of a bulb. (ii) What happen to the reading of the ammeter when the switch in on? Explain your answer. [ 7 marks]