ASRJC 2025 H2 Physics Prelim P2

1 9749/02/ASRJC/2025Prelim [Turn over Name: _____________________________ ( ) Class: 25 / ______ 2025 JC2 Preliminary Examination PHYSICS Higher 2 9749/02 Paper 2 Structured Questions Friday 22 August 2025 2 hours Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, class index number and class 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. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 23 printed pages and 1 blank page. For Examiner’s Use Paper 2 (80 marks) 1 2 3 4 5 6 7 Deductions Total ANDERSON SERANGOON JUNIOR COLLEGE

2 9749/02/ASRJC/2025Prelim 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

3 9749/02/ASRJC/2025Prelim [Turn over Formulae uniformly accelerated motion s 2 2 1 atut  2v asu 22  work done on/by a gas W Vp hydrostatic pressure p gh gravitational potential  r Gm temperature T/K  T/C + 273.15 pressure of an ideal gas p   2 3 1 cV Nm mean translational kinetic energy of an ideal gas molecule E kT2 3 displacement of particle in s.h.m. x  x0 sin  t velocity of particle in s.h.m. v  v0 cos  t  22 xxo  electric current I  Anvq resistors in series R  R1 + R2 + … resistors in parallel 1/R  1/R1 + 1/R2 + … electric potential V  r Q o4 alternating current/voltage x  x0 sin  t magnetic flux density due to a long straight wire B  d o   2 I magnetic flux density due to a flat circular coil B  r No 2 I magnetic flux density due to a long solen