2024 SNGS Physics Prelim P2 QP

1 SNGS Sec 4 Physics Prelim P2 2024 Name ___________________________ ( ) Class ______________ PRELIMINARY EXAMINATION GENERAL CERTIFICATE OF EDUCATION ORDINARY LEVEL PHYSICS 6091/02 Paper 2 Theory 21 August 2024 1 hour 45 minutes READ THESE INSTRUCTIONS FIRST Write your name and index number on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams or graphs. Do not use highlighters, correction fluid or correction tape. Section A Answer all questions. Section B Section B consist of two questions. Answer only one out of these two questions. Students are reminded that all quantitative answers should include appropriate units. The use of approved scientific calculator is expected, where 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 document consists of 24 printed pages. [Turn over] For Examiner’s Use Section A (70 Marks) Section B (10 Marks) Total (80 Marks)

2 SNGS Sec 4 Physics Prelim P2 2024 Section A (70 marks) Answer all the questions in this section. 1 A firework leaves the ground with an intial velocity of 45 m/s, travelling vertically upwards. When it reaches a height of 100 m, it fails to explode and falls back down the same vertical path to the ground. At any point on its path, the firework has both a speed and a velocity. (a) Explain the difference between speed and velocity. …………………………………………………………………………… …………………………………………………………………………… [1] (b) Fig. 1.1 shows the displacement-time graph for the first 5.0 s of the motion. Fig. 1.1 (i) Determine the time taken for the firework to reach the maximum height. time taken = ……………………… [1] displacement from ground / m time / s

3 SNGS Sec 4 Physics Prelim P2 2024 (ii) Describe the motion of the firework for the first 5.0 s of its journey. …………………………………………………………………….... …………………………………………………………………….... …………………………………………………………………….... .................................................................................................. [2] (c) The air resistance acting on the firework is negligble. The table below is for the magnitude and direction of the acceleration of the firework. Complete the table. Give the unit for the magnitude of any acceleration that you write down. magnitude direction as the firework moves upwards at maximum h