2013_MJC_H2_Physics_P3

This document consists of 24 printed pages                     MERIDIAN JUNIOR COLLEGE Preliminary Examination Higher 2 _______________________________________________________________________ H2 Physics 9646/3 Paper 3 24 September 2013 2 hours _______________________________________________________________________ Class Reg Number Candidate Name _____________________________ READ THESE INSTRUCTIONS FIRST This booklet contains Sections A and B of the Preliminary Examination Paper 3. Do not open this booklet until you are told to do so. Section A Answer all questions. Section B Answer any two questions. You are advised to spend about one hour on each section. Write your answers on this question booklet in the blanks provided. INFORMATION FOR CANDIDATES The number of marks is given in brackets [ ] at the end of each question or part question. Marks will be deducted if units are not stat ed where necessary or if answers are not quoted to the appropriate number of significant figures. All working for numerical answers must be shown. You are reminded of the need for good English and clear presentation of your answers. Examiner’s Use Section A Q1 /10 Q2 /10 Q3 /12 Q4 /8 Section B Circle the questions you have attempted Q5 /20 Q6 /20 Q7 /20 Deductions Total /80

Preliminary Examination Meridian Junior College 24 September 2013 JC2 H2 Physics 2013   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 ε0 = 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 + 1 2 at2 v2 = u2 + 2as work done on/by a gas W = pV hydrostatic pressure p = gh gravitational potential  =  Gm r displacement of particle in s.h.m. x = xo sin t velocity of particle in s.h.m. v = vo cos t =   22 o -x x mean kinetic energy of a molecule of an ideal gas E = 3 2 kT resistors in series R = R1 + R2 + … resistors in parallel 1/R = 1/R1 + 1/R2 + … electric potential V = 04 Q r 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  = 1 2 0.693 t

Preliminary Examination Meridian Junior College