ACJC_H1_PHY_P2

This paper consists of 22 printed pages Anglo-Chinese Junior College Physics Preliminary Examination Higher 1 CANDIDATE NAME CLASS CENTRE NUMBER S 3 0 0 4 INDEX NUMBER PHYSICS Paper 2 Structured questions Candidates answer on the Question Paper No additional Materials are required 8866/02 24 August 2016 2 hours READ THESE INSTRUCTIONS FIRST Write your Name and Index number in the spaces provided at the boxes above and on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid. Section A Answer all questions. Section B Answer any two question. 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. For examiners’ use only Section A 1 / 5 2 / 6 3 / 7 4 / 8 5 / 8 6 / 6 Section B 7 / 20 8 / 20 9 / 20 Total / 80

2 2016 H1 8866 Prelim Exam P2 For Examiner’s Use Data speed of light in free space, c = 3.00  108 m s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 acceleration of free fall, g = 9.81 m s2 Formulae uniformly accelerated motion, s = ut + 2 1 at 2 v 2 = u 2 + 2as work done on/by a gas, W = p V hydrostatic pressure, p =  g h resistors in series, R = R1 + R2 +  resistors in parallel, 1/R = 1/R1 + 1/R2 + 

3 2016 H1 8866 Prelim Exam P2 [Turn over For Examiner’s Use Section A Answer all the questions in the spaces provided. 1 (a) State the main distinction between a systematic error and a random error in the measurement of a physical quantity. [2] (b) In a simple pendulum experiment to determine g the acceleration due to gravity, the following equation is used, 𝑇 = 2𝜋√ 𝑙 𝑔 The following measurements were obtained with the help of a meter rule and stopwatch respectively. The length of the pendulum: l = 98.0 cm  0.1% Average time for 10 oscillations: t = 19.8 s  1% g was calculated to be 9.869 m s-2. Present the value of g with its associated uncertainty. g = ………….…  .............. m s [3]

4 2016 H1 8866 Prelim Exam P2 For Examiner’s Use 2 (a) State the law of conservation of linear momentum. [2] (b) A bullet of mass 0.02 kg travelling horizontally with a speed of 500 m s -1 becomes embedded in a bag of sand of mass 40 kg initially at rest which is suspend