ACJC_H1_PHY_P1

This paper consists of 13 printed pages Anglo-Chinese Junior College Physics Preliminary Examination Higher 1 PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet 8866/01 30 Aug 2016 1 hour READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your Name and Index number in the answer sheet provided. There are 30 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 separate Answer Sheet. Read the instructions on the 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.

2 2016 H1 8866 Prelim Exam P1 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 P1 [Turn over 1 Which estimate is realistic? A The order of magnitude of the frequency of a Bluetooth signal is 109 Hz. B The acceleration of a Singapore MRT when moving off from a station is 10 m s-2. C The density of air at atmospheric pressure is 1.2 g cm-3. D The order of magnitude of pressure of air in a car tyre is 103 Pa. 2 When computing systematic and random errors, the following pairs of properties of errors in an experimental measurement may be obtained: X1: error can possibly be eliminated X2: error cannot possibly be eliminated Y1: error is of constant sign and magnitude Y2: error is of varying sign and magnitude Z1: error can be reduced by averaging repeated measurements Z2: error cannot be reduced by averaging repeated measurements Which properties apply to the random errors? A X1, Y1, Z2 B X1, Y2, Z2 C X2, Y2, Z1 D X2, Y1, Z1 3 In an experiment to determine the thickness of the glass of a boiling tube, the following readings were taken using a vernier caliper. Internal diameter, d1 = (2.064  0.004) cm External diameter, d2 = (2.560  0.004) cm The uncertainty in the thickness of the glass is A  0.002 cm B  0.004 cm C  0.008 cm D  0.016 cm 4 Which pair includes a vector quantity and a scalar quantity? A displacement, magnetic flux density B voltage, frequency C torque, work