2024 JPJC H1 Prelim P2

[Turn over Data READ THESE INSTRUCTIONS FIRST Write your name, class and index number 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, glue or correction fluid. The use of an approved scientific calculator is expected, where appropriate. Section A Answer all questions. Section B Answer any one question. 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. This document consists of 25 printed pages and 3 blank pages. JURONG PIONEER JUNIOR COLLEGE JC2 Preliminary Examination 2024 PHYSICS 8867/02 Higher 1 27 August 2024 Paper 2 Structured Questions 2 hours Candidates answer on the Question Paper. No Additional Materials are required. Name: _______________________________ Class: ______________ For Examiner’s Use Section A 1 / 5 2 / 7 3 / 12 4 / 8 5 / 13 6 / 15 Section B 7 / 20 8 / 20 Total / 80

2 2024/JPJC/Prelim/8867/02 Data speed of light in free space 81000.3 c m s–1 elementary charge 191060.1 e C unified atomic mass constant 271066.1 u kg rest mass of electron 311011.9 em kg rest mass of proton 271067.1 pm kg the Avogadro constant 231002.6 AN mol–1 gravitational constant 111067.6 G N m2kg–2 acceleration of free fall 81.9g m s–2 Formulae uniformly accelerated motion 2 2 1atuts  asuv 222  resistors in series ...21  RRR resistors in parallel .../1/1/1 21  RRR

3 2024/JPJC/Prelim/8867/02 [Turn over Answer all the questions in the spaces provided. 1 (a) All bodies radiate energy. The power P radiated by a body is given by  4P kAT where T is the thermodynamic temperature of the body, A is the surface area of the body and k is a constant. Determine the SI base units of k. SI base units ........................................ [2] (b) The maximum useful output power P of a car travelling on a horizontal road is given by 3P v b where v is the maximum speed of the car and b is a constant. For the car, 84 kW 5%P   and 0.56 7%b   in SI units. Determine the absolute uncertainty in the value of v. absolute uncertainty = ........................................ m s−1 [3]

4 2024/JPJC/Prelim/8867/02 2 A golf ball is chipped at an angle of θ above the horizontal and strikes the level ground 1.5 s later, reaching a horizontal distance of 15 m. Air resistance negligible. Take g to be 10 m s2. (a) Calculate the vertical component o