2013_PJC_H2_Physics_P1

2013/PJC/PHYSICS/9646 [Turn over PIONEER JUNIOR COLLEGE JC2 Preliminary Examination PHYSICS 9646/01 Higher 2 Paper 1 Multiple Choice 27 September 2013 1 hour 15 minutes Additional Material: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, class and index number on the Answer Sheet in the spaces provided. 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 18 printed pages. Name Class Index Number

2 2013/PJC/PHYSICS/9646 Data speed of light in free space, 81000.3 c ms –1 permeability of free space, 7 0 104   Hm–1 permittivity of free space, 12 0 1085.8  Fm–1    910361   Fm–1 elementary charge, 191060.1 e C the Planck constant, 341063.6 h Js unified atomic mass constant, 271066.1 u kg rest mass of electron, 311011.9 em kg rest mass of proton, 271067.1 pm kg molar gas constant, 31.8R JK–1 mol–1 the Avogadro constant, 231002.6 AN mol–1 the Boltzmann constant, 231038.1 k JK–1 gravitational constant, 111067.6 G Nm2 kg–2 acceleration of free fall, 81 .9g ms –2

3 2013/PJC/PHYSICS/9646 [Turn over Formulae uniformly accelerated motion, 2 2 1 atuts  asuv 222  work done on/by a gas, VpW  hydrostatic pressure, ghp  gravitational potential, r Gm displacement of particle in s.h.m., txx sin0 velocity of particle in s.h.m., tvv cos0 22 0 xx   mean kinetic energy of a molecule kTE 2 3 of an ideal gas, resistors in series, ...21  RRR resistors in parallel, .../1/1/1 21  RRR electric potential, r QV 04 alternating current/voltage, txx sin0 transmission coefficient,  kdT 2exp  where  2 28 h EUmk   radioactive decay, )exp(0 txx  decay constant, 2 1 693.0 t

4 2013/PJC/PHYSICS/9646 1 What are the SI base units of magnetic flux density? A kg ms −2 A−1 B kg m 2 s−2 A−1 C kg s −2 A−1 rad−1 D kg s −2 A−1 2 A boat changes its velocity from 5 m s−1 due East to 7 m s−1 due South. What is its change in velocity? A 9 m s −1 at a direction of 54° South of East