Prelim H2P1

1 Name: _____________________________ ( ) Class: 21 / ______ 2021 JC2 Preliminary Examination PHYSICS Higher 2 9749/01 Paper 1 Multiple Choice Tuesday 21 September 2021 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name and class on the Multiple Choice Answer Sheet. Shade and write your NRIC/FIN. 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 Multiple Choice Answer Sheet. Read the instructions on the Multiple Choice 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 question paper. The use of an approved scientific calculator is expected, where appropriate. 9749/01/ASRJC/2021PRELIM [Turn over ANDERSON SERANGOON JUNIOR COLLEGE 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 30 on page 16 Turn to these questions and cross them out by drawing a line through these questions. The total time allowed for this Question Paper has not been changed. The total mark allowed for this Question Paper is now 29. This document consists of 16 printed pages and 0 blank page.

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 9749/01/ASRJC/2021PRELIM 2

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= ρ gh 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 = ±ω √ xo2−x2 electric current I  Anvq resistors in series R = R1 + R2 + … resistors in parallel 1/R = 1/R1 + 1/R2 + … electric potential