BBSS 4E O Prelim 2024 Physics 6091 P2 QP

Bukit Batok Secondary School GCE O LEVEL PRELIMINARY EXAMINATION 2024 SECONDARY 4 EXPRESS PHYSICS 6091/02 Paper 2 Structured and Free Response 23 Aug 2024 1 hour 45 minutes 1050 – 1235 h Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, index number and class on all the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Section A Answer all questions. Write your answers in the spaces provided. Section B Answer one question. Write your answers in the spaces provided. Candidates are reminded that all quantitative answers should include appropriate units. The use of an approved scientific calculator is expected, were appropriate. Candidates are advised to show all their working in a clear and orderly manner, as more marks are awarded for sound use of Physics than for correct answers. The number of marks is given in brackets [ ] at the end of each question or part question. This Question paper consists of 23 printed pages including this cover page For Examiner’s Use Section A Section B Total Name: …………………………………………. Index no. ………. Class……….

BBSS/Preliminary Exam 2024/Physics 6091/Paper 2 Applying past knowledge to new situations 2 Section A Answer all the questions. 1 In a fireworks display, a 4.0 kg rocket is launched vertically upwards from the ground into the air. The rocket runs out of fuel when moving with a velocity of 64 m/s. Fig. 1.1 shows how the velocity of the rocket varies with time until it reaches ground. Assume that air resistance can be neglected. Fig. 1.1 (a) Describe the direction of motion and acceleration of the rocket from time t = 0 s to t = 50 s. ……………………………………………………………………………………… ……………………………………………………………………………………… ……………………………………………………………………………………… ……………………………………………………………………………………… [2] (b) State the time at which the rocket reaches its highest point. time = ………………… [1] 10 50 40 30 20 90 80 70 60100 0 20 - 2 0 60 40 - 80 - 40 - 60 v = 64 18 velocity / m/s time / s

BBSS/Preliminary Exam 2024/Physics 6091/Paper 2 Applying past knowledge to new situations 3 (c) Using Fig. 1.1, calculate the maximum height reached by the rocket maximum height = ………………… [2] 2 Fig. 2.1 shows the vertical forces acting on a skydiver a few seconds after he jumps off the plane. Fig. 2.1 The skydiver experiences an upward force of 20 N. The weight of the skydiver is 700 N. (a) Define gravitational field strength. …………………………………………………………………