2013_IJC_H2_Physics_P1

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 1 Multiple Choice Additional Materials: Multiple choice answer sheet 9646/01 16 September 2013 1 hour 15 minutes READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, civics group and index number on the Answer sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. This document consists of 17 printed pages and 1 blank page. Innova Junior College [Turn over

© IJC 2013 9646/Prelim2/01/13 [Turn over 2 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  (1/(36)) x 10-9 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 = ut + ½at2 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 = vocos ωt   22 oxx  resistors in series, R = R1 + R2 + … resistors in parallel, 1/R = 1/R1 + 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 m U E h   radioactive decay, x = xo exp(-t) decay constant,  = ½ 0.693 t

3 © IJC 2013 9646/Prelim2/01/13 [Turn over 1 Thermal conductivity k is the property of a material that indicates its ability to conduct heat. The rate of flow of heat energy dQ dt can be found from the equation L TTkAdt dQ 12  where k is the thermal conductivity, A is the cross sectional area of the conducting surface 12 TT  is the temperature difference across the surface and L is the thickness of the conducting surface separating the two temperatures. What