2020 ASRJC H1 Physics Prelims P1 Questions

1 8867/01/ASRJC/2020Prelim [Turn over Name: _____________________________ ( ) Class: 20 / ______ 2020 JC2 Preliminary Examination PHYSICS Higher 1 8867/01 Paper 1 Multiple Choice Tuesday 22 September 2020 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name and class on the Multiple Choice Answer Sheet. Shade and write your NRIC/FIN. There are thirty questions on 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 Multiple Choice Answer Sheet. Read the instructions on the Multiple Choice 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. The use of an approved scientific calculator is expected, where appropriate. This document consists of 15 printed pages and 1 blank page. ANDERSON SERANGOON JUNIOR COLLEGE

8867/01/ASRJC/2020Prelim 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 + … 2

3 8867/01/ASRJC/2020Prelim [Turn Over 1 What is a reasonable estimate of the mass of a raindrop? A 101 kg B 10−1 kg C 10−3 kg D 10−5 kg 2 A student makes the following measurements to determine the density of a plastic ruler. length = 31.2 ± 0.1 cm cross−sectional area = 0.32 ± 0.02 cm2 mass = 13.78 ± 0.01 g Which statement is correct? A The actual uncertainty of density is 0.03 g cm−3. B The fractional uncertainty of density is 0.031. C The percentage uncertainty of density is 6.6 %. D The density of the plastic ruler is expressed as 1.38 ± 0.07 g cm−3.

4 8867/01/ASRJC/2020Prelim 3 A passenger in a car travelling due East at speed vC see