TKSS 2024 Prelim P2

1 Physics 6091/Sec4/Preliminary Examinations/2024 [Turn over TANJONG KATONG SECONDARY SCHOOL Preliminary Examination 2024 Secondary 4 NAME INDEX INDEX CLASS NUMBER PHYSICS 6091/02 Paper 2 19 August 2024 1 hour 45 minutes Candidates answer on the Question Paper. No Addtional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, index number and class in the spaces at the top of this page and on all separate answer paper used. Write in dark blue or black pen. You may use a HB pencil for any diagrams, graphs, or rough working. Do not use staples, paper clips, glue, or correction fluid. Section A Answer all the questions in the spaces provided. Section B Answer only one out of these two questions.. Answer all questions in the space provided. Candidates are reminded that all quantitative answers should include appropriate units. The use of an 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. For Examiner’s Use My Predicted Grade Before doing assessment: After doing assessment: Section A Section B Total 80 This document consist of 22 printed pages, and 2 blank pages.

Physics 6091/Sec4/Preliminary Examinations/2024 2 BLANK PAGE

3 Physics 6091/Sec4/Preliminary Examinations/2024 [Turn over Section A Answer all questions. 1 A stone falls from the top of a cliff into the sea, as shown in Fig. 1.1a. The speed time graph for the stone is shown in Fig. 1.1b. Fig. 1.1a Fig. 1.1b (a) Describe how the acceleration of the stone changes between point A and point D. ………………………………………………………………...………………………......... ………………………………………………………………...………………………......... ………………………………………………………………...……………………….....[2] (b) Explain, in terms of the forces acting, why the acceleration changes between point A and point B. ………………………………………………………………...………………………......... ………………………………………………………………...………………………......... ………………………………………………………………...………………………......... ………………………………………………………………...……………………….....[3] (c) Explain how Fig. 1.1b shows that the stone does not reach terminal velocity in the air. ………………………………………………………………...……………………….........