RVHS 2022 Prelim P3

River Valley High School Page 1 of 25 H2 Physics 9749 2022 JC 2 Preliminary Examinations RIVER VALLEY HIGH SCHOOL JC 2 PRELIMINARY EXAMINATIONS H2 PHYSICS 9749 / 3 PAPER 3 13 SEPTEMBER 2022 2 HOURS CANDIDATE NAME CENTRE NUMBER S INDEX NUMBER CLASS 2 1 J INSTRUCTIONS TO CANDIDATES DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO. FOR EXAMINERS’ USE Section A – do all questions 1 / 6 2 / 9 3 / 7 4 / 8 5 / 9 6 / 5 7 / 8 8 / 8 Section B – do ONE question only 9 / 20 10 / 20 Deduction TOTAL / 80 Read these notes carefully. Write your name, centre number, index number and class in the spaces at the top of this page and on all work you hand in. Candidates answer on the Question Paper. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. The use of an approved scientific calculator is expected, where appropriate. Section A Answer all questions. Section B Answer one question only. You are advised to spend one and half hours on Section A and half an hour on Section B. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 25 printed pages.

River Valley High School Page 2 of 25 H2 Physics 9749 2022 JC 2 Preliminary Examinations Data speed of light in free space, c = 3.00  108 m s–1 permeability of free space, 0 = 4   10–7 H m–1 permittivity of free space, 0 = 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 K–1 mol–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

River Valley High School Page 3 of 25 H2 Physics 9749 2022 JC 2 Preliminary Examinations Formulae uniformly accelerated motion 2 2 1 atuts += 22 2v u as=+ work done on / by a gas W p V= hydrostatic pressure p gh= gravitational potential  = − GM / r temperature T / K = T / C + 273.15 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 = x0 sin t velocity of particle in s.h.m., v = v0 cos t = )( 22 0 xx −  electric current, I = Anvq resistors in series, 12R R R= + + resistors in parallel, 121/ 1/ 1/R R R= + + electric potential, r QV 04= alternating current/voltage, x = x0 sin t magnetic flux density due to a long straight wire, dB   2 0I= magnetic flux density du