MSHS 2025 PHY PRELIM P2 QP

[Turn over This document consists of 22 printed pages. Class / Index Number / Centre Number / ‘O’ Level Index Number / Name MARIS STELLA HIGH SCHOOL PRELIMINARY EXAMINATION SECONDARY FOUR PHYSICS 6091/02 Paper 2 Structured and Free Response 28 August 2025 1 hour 45 minutes Candidates answer on the Question Paper. No Additional Materials are 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. Write your answers in the spaces provided. Section B Answer one question. Write your answers in the spaces provided. Circle your choice of question on the cover page. 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. The total marks for this paper (Sections A and B) is 80. For Examiner’s Use Section A 70 Section B ( 11 / 12 ) 10 Total 80

2 Section A Answer all questions in this section. 1 (a) A ball is thrown vertically down towards the ground and rebounds as illustrated in Fig. 1.1. Fig. 1.1 As the ball passes A, it has a speed of 8.4 m s-1. The height of A is 5.0 m above the ground. The ball hits the ground and rebounds to B. Assume that air resistance is negligible. (i) Calculate the speed of the ball just before hitting the ground. speed = ........................................ [2] (ii) Show that the time taken for the ball to reach the ground is 0.46 s. [1]

3 [Turn over (b) The ball rebounds vertically with a speed of 4.2 m s -1 as it leaves the ground. The time the ball is in contact with the ground is 20 ms. The ball rebounds to a maximum height h. The ball passes A at time t = 0. On Fig. 1.2, plot a graph to show how the velocity v of the ball varies with time t. Continue the graph until the ball has rebounded from the ground and reaches B. Fig. 1.2 [3] [Total: 6] 2 Fig. 2.1 shows a 60.0 kg painter on a uniform scaffold of mass 25.0 kg and length 6.0 m, supported from above by ropes at points A and B. A 4.0 kg pail of paint is placed 1.0 m away from one of the supports. Fig. 2.1 paint

4 (a) On Fig. 2.2, draw and label the forces acting on the scaffold. [2] Fig. 2.2 (b) Given that the painter is sta