EJC Physics 2021 J2 H1 MYE P1 (Printed)

©EJC 2021 8867/01/J2H1MYE/2021 [Turn over EUNOIA JUNIOR COLLEGE JC2 Mid Year Examination 2021 General Certificate of Education Advanced Level Higher 1 PHYSICS Paper 1 Multiple Choice 8867/01 09 Jul 2021 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use paper clips, glue or correction fluid. Write your name, civics group and registration number on the Answer Sheet in the spaces provided. 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 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 document consists of 15 printed pages and 1 blank page.

2 ©EJC 2021 8867/01/J2H1MYE/2021 Data Formulae uniformly accelerated motion, s = ut + ½at2 v2 = u2 + 2as resistors in series, R = R1 + R2 + … resistors in parallel, 1/R = 1/R1 + 1/R2 + … 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

3 ©EJC 2021 8867/01/J2H1MYE/2021 [Turn over 1 Which formula could be correct for the speed v of ocean waves in terms of the density ρ of sea-water, the acceleration of free fall g, the depth h of the ocean and the wavelength λ? A vg λ= B gv h= C v gh ρ= D gv ρ= 2 A specimen of volume V is cut from a length of circular -section metal rod. The length of the specimen is known with an uncertainty of ± 1% and the diameter with an uncertainty of ± 2%. What will be the uncertainty of V? A 2% B 3% C 4% D 5% 3 The speed of an aeroplane in still air is 200 km h-1. The wind blows from the west at a speed of 85.0 km h-1. In which direction must the pilot steer in order to fly due north? A 23.0o east of north B 23.0o west of north C 25.2o east of north D 25.2o west of north 4 A toy airplane is flying above the ground at a constant horizontal velocity of 5.0 m s -1 when the toy pilot is ejected. The airplane propels the toy pilot upward at a height of 2.4 m above the ground and the vertical component of his speed is initially 3.0 m s -1. Ignore the effects of air resistance. What is the speed of the toy pilot when it hits the ground? A 3.7 m s-1 B 5.8 m s-1 C 7.5 m s-1 D 9.0 m