2018 MJC P1 Soln

This document consists of 18 printed pages. [Turn over MERIDIAN JUNIOR COLLEGE JC2 Preliminary Examinations Higher 2 H2 Physics 9749/01 Paper 1 Multiple Choice 20 September 2018 1 hour Additional Materials: Optical Mark Sheet (OMS) Class Reg No Candidate Name: READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and index number on the Answer Sheet in the spaces provided. There are thirty questions in this section. 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 Answer Sheet. In the Index Number section, shade your index number using the first two spaces (e.g. index number 5 should be entered as “05”). Ignore the remaining numbers and letters. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any working should be done in this booklet. The use of an approved scientific calculator is expected, where appropriate.

Meridian Junior College H2 Physics Paper 1 JC2 Preliminary Examinations 2018 2 20 September 2018 Data speed of light in free space c = 3.00 × 108 m s 1 permeability of free space o = 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

Meridian Junior College H2 Physics Paper 1 JC2 Preliminary Examinations 2018 3 20 September 2018 [Turn over Formulae uniformly accelerated motion s = 21 2ut at v2 = u2 + 2as work done on/by a gas W = p V hydrostatic pressure p = gh gravitational potential = /G m r temperature T /K = T /°C + 273.15 pressure of an ideal gas p = 21 3 Nm cV mean translation kinetic energy an ideal gas molecule E = 3 2 kT displacement of particle in s.h.m. x = xo sin t velocity of particle in s.h.m. v = vo cos t v = 2 2 ox x electric current I = Anvq resistors in series R = 1 2R R … resistors in parallel 1/ R = 1 21/ 1/R R … electric potential V = 04 Q r alternating current/voltage X = xo sin t magnetic flux density due to a long straight wire B = 0 2 d I magnetic flux density due to a flat circular coil B = 0 2 N r I magnetic flux density due to a long solenoid B = 0n I radioactive decay x = 0 expx t decay constant = 1 2 ln2 t

Meridian Junior College H2 Physics Paper 1 JC2 Preliminary Examinations 2018 4 20 September 2018 1 B 11 D 21 D 2 C 12 C