VJC 2022 Prelim P1 Guide

1 PHYSICS Higher 2 Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet 9749/01 2.30 pm- 3.30 pm 1 Hour READ THESE INSTRUCTIONS FIRST Write in soft pencil (2B or softer). Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, CT group and shade your index number on the Answer Sheet provided. HOW TO SHADE YOUR INDEX NUMBER: Eg. If your class is 21S43, index number is 06, then shade 2140306. Check that you have shaded correctly. There are thirty 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. The use of an approved scientific calculator is expected, where appropriate. This document consists of 17 printed pages. VICTORIA JUNIOR COLLEGE 2022 JC2 PRELIMINARY EXAMINATIONS

2 Data speed of light in free space, c = 3.00 × 108 m s-1 permeability of free space, µo = 4 × 10-7 H m-1 permittivity of free space, o = 8.85 × 10-12 F m-1 (1/(36)) × 10-9 F m-1 elementary charge, e = 1.60 × 10-19 C the Planck constant, h = 6.63 × 10-34 J s unified atomic mass constant, u = 1.66 × 10-27 kg rest mass of electron, me = 9.11 × 10-31 kg rest mass of proton, mp = 1.67 × 10-27 kg molar gas constant, R = 8.31 J mol-1 K-1 the Avogadro constant, NA = 6.02 × 1023 mol-1 the Boltzmann constant, k = 1.38 × 10-23 J K-1 gravitational constant, G = 6.67 × 10-11 N m2 kg-2 acceleration of free fall, g = 9.81 m s-2

3 Formulae uniformly accelerated motion, s = ut + (½) at2 v2 = u2 + 2as work done on/by a gas, W = pV hydrostatic pressure, p = gh gravitational potential, r GM−= temperature 15.273// += CTKT pressure of an ideal gas 2 3 1 cV Nmp= mean translational kinetic energy of an ideal gas molecule kTE 2 3= displacement of particle in s.h.m., x = xo sin  t velocity of particle in s.h.m., )( cos 22 xx tvv o o −= =   electric current AnvqI = 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 Magnetic flux density due to a long straight wire d IB   2 0= Magnetic flux density due to a flat circular coil r NIB 2 0= Magnetic flux density due to a long solenoid nIB 0= radioactive decay, x = xoexp(-t) decay constant, 2 1 2ln t=

4 1. For electromagnetic induction, there is a physical quantity called self-induction, which is defined as e.m.f. induced in coil by a changing currentself inductance= rate of change of