Bukit Merah Prelim P2

Class Index Number Name BUKIT MERAH SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 SECONDARY 4 EXPRESS PHYSICS 6091/02 Paper 2 Theory 19 August 2024 1 hour 45 minutes Candidates answer on the Question Paper. No additional material is required. READ THESE INSTRUCTIONS FIRST Write your class, index number and name 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. Section B Answer one question. 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. This document consists of 24 printed pages. Setter: Mrs Goh SM [Turn over

2 BMSS/2024/4E/PRELIM/6091/02 [Turn over Section A (70 marks) Answer all the questions in this section. 1 Fig. 1.1 shows a bird cage hanging on a uniform wooden pole of length 1.8 m and mass 10 kg. The pole is kept horizontal by two ropes, A and B, each tied at the ends of the pole. The bird and the cage have a total mass of 6.0 kg and is suspended 1.2 m away from rope A. The gravitational field strength g is 10 N/kg. (a) Using the principle of moments or otherwise, calculate the tension in rope A and B. tension is rope A = …………………………. tension is rope B = …………………………. [3] (b) The bird keeper wants to suspend another bird cage of weight 30 N on the pole without increasing the tension in rope B as he is afraid rope B will snap. Suggest and explain where he should suspend this second bird cage. …………………………………………………………………………………………………………….. …………………………………………………………………………………………….…………....[2] [Total:5] Fig. 1.1 bird and cage ceiling rope B rope A wooden pole 1.2 m Fig. 1.1

3 BMSS/2024/4E/PRELIM/6091/02 [Turn over 2 A set-up consists of a syringe and a manometer connected to each end of a pipe can be used to detect leaks in the pipe. (a) Fig. 2.1 shows the levels of water on each side of the manomete