YIJC 2024 JC2 PRELIM H1 Phy P2 QP

©YIJC 8867/02/YIJC/PRELIM/2024 [Turn over YISHUN INNOVA JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION Higher 1 CANDIDATE NAME CG INDEX NO PHYSICS Paper 2 Structured Questions Candidates answer on the Question Paper. No Additional Materials are required. 8867/02 9 September 2024 2 hours READ THESE INSTRUCTIONS FIRST This document consists of 25 printed pages and 3 blank pages For Examiner’s Use Paper 2 Section A 1 / 8 2 / 10 3 / 10 4 /5 5 /10 6 /17 Section B 7 /20 8 /20 Penalty Paper 2 Total /80 Write your name and class 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 or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid/tape. The use of an approved scientific calculator is expected, where appropriate. Section A Answer all questions. Section B Answer any one question only. 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.

2 ©YIJC 8867/02/YIJC/PRELIM/2024 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 + 2 1at2 v2 = u2 + 2as resistors in series R = R1 + R2 +………. resistors in parallel R 1 ........11 21  RR =

3 ©YIJC 8867/02/YIJC/PRELIM/2024 [Turn over BLANK PAGE

4 ©YIJC 8867/02/YIJC/PRELIM/2024 Section A Answer all questions in the spaces provided. 1 (a) Under certain conditions, the distance s moved in a straight line by an object in time t is given by 21= 2s at where a is the acceleration of the object. State two conditions under which the above expression applies to the motion of the object. 1 ….…………………………………………………………………………………………………… 2 ……………………………………………………… …. …………………….………………… . [2] (b) The variation with time t of the velocity v of a car that is moving in a straight line is shown in Fig. 1.1. Fig. 1.1 (i) Compare, qualitatively, the acceleration of the car at time t = 8.0 s and at time t = 14.0 s in terms of magnitude, and …………………………………………………………………………………………………. ……………………………………………………………………………………………… [1] direction. …………………………………………………………………………………………………. ……………………………………………………………………