Prelim H2P3

1 Name: _____________________________ ( ) Class: 21 / ______ 2021 JC2 Preliminary Examination PHYSICS Higher 2 9749/03 Paper 3 Longer Structured Questions Thursday 16 September 2021 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 provided above. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil for any diagrams or graphs. 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 about one and a half hours on Section A and half an hour on Section B. 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. 9749/03/ASRJC/2021PRELIM [Turn Over ANDERSON SERANGOON JUNIOR COLLEGE For Examiner’s Use Paper 1 Total / 30 Paper 2 Total / 80 Paper 4 Total / 55 Paper 3 Total / 80 1 2 3 4 5 6 7 8 Deduction Prelim / 100 CLT Notice Questions set on the Common Last Topic of the syllabus do not form part of the assessment. They will not be marked by the Examiners. Do not answer the following questions: Question 9 on page 22 Turn to the question and cross it out by drawing a line through the question. In Section B you must answer Question 8. There is now no choice of question in this Section. The total time allowed for this Question Paper has not been changed. The total mark allowed for this Question Paper has not been changed. This document consists of 24 printed pages and 0 blank page.

2 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 9749/03/ASRJC/2021PRELIM

3 Formulae uniformly accelerated motion s= ut + 1 2 at2 v2 = u2 + 2 as work done on/by a gas W= pΔV hydrostatic pressure p= ρgh gravitational potential φ= −Gm r temperature T/K  T/C + 273.15 pressure of an ideal gas p  1 3 Nm V ⟨ c2⟩ mean translational kinetic energy of an ideal gas molecule E= 3 2 kT displacement of particle in s.h.m. x  x0 sin  t velocity of particle in s.h.m. v  v0 cos  t = ±