2013_IJC_H2_Physics_P2

© IJC 2013 9646/Prelim2/02/13 [Turn over INNOVA JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION 2 in preparation for General Certificate of Education Advanced Level Higher 2 CANDIDATE NAME CLASS INDEX NUMBER PHYSICS Paper 2 Structured Questions Candidates answer on the Question Paper No Additional Materials are required. 9646/02 16 September 2013 1 hour 45 minutes READ THESE INSTRUCTIONS FIRST Write your name, class and index number on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. For Section A Answer all questions. It is recommended that you spend about 1 hour and 15 minutes on this section. For Section B Answer Question 8. It is recommended that you spend about 30 minutes on this section. At the end of the examination, fasten all your work securely together. The number of marks is given in the brackets [ ] at the end of each question or part question. This document consists of 24 printed pages. For Examiner’s Use 1 6 2 10 3 8 4 8 5 6 6 7 7 15 8 12 Significant Figures Total 72 Innova Junior College [Turn over

2 © IJC 2013 9646/Prelim2/02/13 [Turn over For Examiner’s Use Data speed of light in free space, c = 3.00 x 108 m s-1 permeability of free space, o = 4 x 10−7 H m−1 permittivity of free space, o = 8.85 x 10−12 F m−1 elementary charge, e = 1.60 x 10−19 C the Planck constant, h = 6.63 x 10−34 J s unified atomic mass constant, u = 1.66 x 10−27 kg rest mass of electron, me = 9.11 x 10−31 kg rest mass of proton, mp = 1.67 x 10−27 kg molar gas constant, R = 8.31 J K−1 mol−1 the Avogadro constant, NA = 6.02 x 1023 mol−1 the Boltzmann constant, k = 1.38 x 10−23 J K−1 gravitational constant, G = 6.67 x 10−11 N m2 kg−2 acceleration of free fall, g = 9.81 m s−2 Formulae uniformly accelerated motion, s= u t + ½ a t 2 v2 = u2+ 2as work done on/by a gas, W = pV mean kinetic energy of a molecule of an ideal gas E = kT2 3 hydrostatic pressure, p = gh gravitational potential,  = GM r displacement of particle in s.h.m. x = xosin ωt velocity of particle in s.h.m. v= v ocos ωt   22 ox x  resistors in series, R= R 1 + R2 + … resistors in parallel, 1/R = 1/R 1 + 1/R2 + … electric potential V = Q/4or alternating current/voltage, x = xo sint transmission coefficient T = exp ( −2kd) where k =  2 2 8 mU E h   radioactive decay, x = xo exp(−t) decay constant,  = ½ 0.693 t

3 © IJC 2013 9646/Prelim2/02/13 [Turn over For Examiner’s Use Section A Answer all the questions in this section. 1 A stone is being thrown from the top of the cliff