TJC_H1_PHY_P1

READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Civics group and Index Number on the Answer Sheet in the spaces provided. There are thirty questions in this paper. 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 booklet. The use of an approved scientific calculator is expected, where appropriate. This booklet consists of 16 printed pages. [Turn over TEMASEK JUNIOR COLLEGE 2016 Preliminary Examination Higher 1 PHYSICS Paper 1 Multiple Choice 8866/01 20 September 2016 1 hour Additional Materials: Multiple Choice Answer Sheet

2 Data speed of light in free space, c = 3.00 x 10 8 m s-1 elementary charge, e = 1.60 x 10 -19 C the Planck constant, h = 6.63 x 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 = ρgh resistors in series, R = R1 + R2 + … resistors in parallel, 1/ R =1 / R1 + 1/R2 + …

3 1 The behaviour of many real gases can be represented by an equation of the form (p + ) 2 mV a (Vm – b) = RT where p is pressure, Vm is volume per mole, T is temperature, R is a constant, and the values of a and b are characteristics of the particular gas. What are the units of a and b? a b A Pa m-6 mol2 m3 mol B Pa m6 mol-2 m3 mol C Pa m-6 mol2 m3 mol-1 D Pa m6 mol-2 m3 mol-1 2 A plastic ruler is used to measure the thickness of a block whose thickness is 7.5 cm. Repeated measurements give the following readings. Thickness/ cm 7.6 7.5 7.8 7.4 7.6 Which of the following is correct? results are accurate to within 0.1 cm results are precise to within 0.1 cm A Yes No B Yes Yes C No Yes D No No 3 Which of the following statements is correct? A In the measurement of the diameter of a sphere, take more readings and finding the average value of these readings will help to reduce the fractional uncertainty of the diameter. B Plotting a graph of voltage and current readings for an ohmic conductor and using its gradient to find resistance will help to eliminate random error. C Measuring the timing of a larger