2024 TKGS Prelim P2

TANJONG KATONG GIRLS’ SCHOOL PRELIMINARY EXAMINATION SECONDARY FOUR EXPRESS CANDIDATE NAME CLASS 4 INDEX NUMBER PHYSICS 6091/02 Paper 2 14 August 2024 1 hour 45 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, class and register number on all the work you hand in. Write in dark blue or black pen. You may use a HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Section A Answer all questions 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, 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 Section A Setter : Mr Timothy Yeo Section B Markers : Ms Sultana Rahman, Mr Aloysius Goh, Mr David Chung Total / 80 This document consists of 20 printed pages.

2 Tanjong Katong Girls’ School Sec 4 Preliminary Examination 2024 Section A Answer all questions in this section in the spaces provided. The total mark for this section is 70. 1 A ball is thrown vertically down at a speed of 8.4 m/s from point A which is 5.0 m above the ground. Assuming that air resistance is negligible, the ball hits the ground at a speed of v m/s after t seconds. (a) Sketch the velocity -time graph of the ball from the time it was thrown to when it hit the ground at t seconds. Label all essential points. [2] (b) (i) Assuming acceleration due to gravity is 10 m/s2, express t in terms of v. t = ……………………….[2] velocity / m/s time / s 5.0 m A 8.4 m/s

3 Tanjong Katong Girls’ School Sec 4 Preliminary Examination 2024 (ii) Using your sketch in (a) and expression in b(i), determine the speed, v m/s, which the ball hits the ground. v = ………………………. [2] [Total: 6]

4 Tanjong Katong Girls’ School Sec 4 Preliminary Examination 2024 2 The diagram shows a section of a handrail attached to the ceiling of a train carriage. The handrail is light. A man and a lady hold onto the handles and exert downward forces of 700 N and 500 N respectively. The bar is held securely to the ceiling with supports A and B. The force acting on each support is F1 and F2 respectively. (a) State the princ