2024 JPJC H2 Prelim P2_Printed

[Turn over A Data READ THESE INSTRUCTIONS FIRST Write your name, class and index number in the spaces at the top of this page. 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. Answer all questions. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 20 printed pages. [Turn over JURONG PIONEER JUNIOR COLLEGE JC2 Preliminary Examination 2024 PHYSICS 9749/02 Higher 2 27 August 2024 Paper 2 Structured Questions 2 hours Candidates answer on the Question Paper. No Additional Materials are required. Name: _______________________________ Class: ______________ For Examiner’s Use 1 / 6 2 / 8 3 / 6 4 / 10 5 / 10 6 / 9 7 / 11 8 / 20 Total / 80

2 2024/JPJC/Prelim/9749/02 Data speed of light in free space 81000.3 =c m s–1 permeability of free space 7 0 104 −=  H m–1 permittivity of free space 12 0 1085.8 −= F m–1 ( )( ) 910361 −=  F m–1 elementary charge 191060.1 −=e C the Planck constant 341063.6 −=h J s 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 J K–1 mol–1 the Avogadro constant 231002.6 =AN mol–1 the Boltzmann constant 231038.1 −=k J K–1 gravitational constant 111067.6 −=G N m2 kg–2 acceleration of free fall 81.9=g m s–2

3 2024/JPJC/Prelim/9749/02 [Turn over Formulae uniformly accelerated motion 2 2 1 atuts += asuv 222 += work done on/by a gas VpW = hydrostatic pressure ghp = gravitational potential GM r =− temperature / K / C 273.15TT =  + pressure of an ideal gas 21 3 Nmpc V= mean translational kinetic energy of an ideal gas molecule 3 2E k T= displacement of particle in s.h.m. txx sin0= velocity of particle in s.h.m. tvv cos0= 22 0 xx −=  electric current Anvq=I resistors in series ...21 ++= RRR resistors in parallel .../1/1/1 21 ++= RRR electric potential r QV 04= alternating current/voltage txx sin0= magnetic flux density due to a long straight wire 0 2B d  = I magnetic flux density due to a flat circular coil 0 2 NB r = I magnetic flux density due to a long solenoid 0Bn = I radioactive d