IJC_H1_PHY_P2_Solution

© IJC 2016 8866/02/Prelim/16 [Turn over INNOVA JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION in preparation for General Certificate of Education Advanced Level Higher 1 CANDIDATE NAME CLASS GROUP: PHYSICS Paper 2 Structured Questions 8866/02 23 August 2016 2 hours Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name and class on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. The use of an approved scientific calculator is expected, where appropriate. Section A Answer all questions. Section B Answer any two questions. Please write down your answers in the spaces provided. The number of marks is given in the brackets [ ] at the end of each question or part question. Marks will be deducted for using inappropriate number of significant figures or wrong value of g. This document consists of 26 printed pages. For Examiner’s Use Section A 1 7 2 5 3 6 4 7 5 5 6 10 Section B 7 20 8 20 9 20 Significant Figures Total 80 Innova Junior College [Turn over

2 © IJC 2016 8866/02/Prelim/16 [Turn over For Examiner’s Use Data speed of light in free space, c = 3.00 x 108 m s-1 elementary charge, e = 1.60 x 10-19 C the Planck constant h = 6.63 × 10-34 J s unified atomic mass constant, u = 1.66 x 10-27 kg rest mass of electron, me = 9.11 x 10-31 kg rest mass of proton, mp = 1.67 x 10-27 kg acceleration of free fall, g = 9.81 m s-2 Formulae uniformly accelerated motion, s = ut + ½at2 v2 = u2+ 2as work done on/by a gas, W = pV hydrostatic pressure, p = gh resistors in series, R = R1 + R2 + … resistors in parallel, 1/R = 1/R1 + 1/R2 + …

3 © IJC 2016 8866/02/Prelim/16 [Turn over For Examiner’s Use Section A Answer all the questions in this section. 1 One end of a spring is fixed to a support. A mass is attached to the other end of the spring. The arrangement is shown in Fig. 1.1. Fig. 1.1 (a) The mass is in translational equilibrium. Explain, with reference to the forces acting on the mass, what is meant by translational equilibrium. There is no net resultant force in all directions. [B1] The weight downwards is equal to the tension upwards. [B1] …………………………………………………………………………………………. [2] (b) The mass is pulled down and then released at time t = 0. The mass oscillates up and down. The variation with t of the displacement of the mass d is shown in Fig. 1.2. Fig. 1.2 Given that acceleration is directly proportional to displacement, d