2024 ACJC J2 H1 Physics Prelim P2

This paper consists of 26 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. 8867/02 22 August 2024 2 hours READ THESE INSTRUCTIONS FIRST Write your name, class and index number in the spaces at the top of this page. Write in dark blue or black pen on both sides of the paper. You may use an HB 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 one question only. You are advised to spend 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. For Examiners’ use only Section A 1 / 6 2 / 9 3 / 7 4 / 6 5 / 8 6 / 8 7 / 16 Total / 60 Section B 8 / 9 / 20 Grand Total / 80

2 Anglo-Chinese Junior College 2024 J2 H1 8867 Paper 2 Preliminary Examination DATA AND FORMULAE Data speed of light in free space c = 3.00  108 m s1 elementary charge e = 1.60  1019 C 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 the Avogadro constant NA = 6.02  1023 mol1 gravitational constant G = 6.67  1011 N m2 kg2 acceleration of free fall g = 9.81 m s2 Formulae uniformly accelerated motion s = ut + 1 2 at 2 v 2 = u 2 + 2as resistors in series R = R1 + R2 +  resistors in parallel 1/R = 1/R1 + 1/R2 + 

3 [Turn over Anglo-Chinese Junior College 2024 J2 H1 8867 Paper 2 Preliminary Examination For Examiner’s Use Section A Answer all the questions in this Section in the spaces provided. 1 (a) Distinguish between precision and accuracy. …………………………………… …………. ……… .…………………………………… …………………………………… …………. ……… .…………………………………… …………………………………… …………. ……… .…………………………………… …………………………………… …… ……………… .……………………… … …… [2] (b) A simple pendulum consists of a mass attached to a light inextensible string of length L. The pendulum is secured to a fixed point and made to undergo oscillations when displaced by a small angle. The acceleration of free fall g can be found by the following equation: 2 LT g where T is the period of oscillation. The fo