GESS 4Exp_Phy_Prelim_P2_24

This paper consists of 22 pages including the cover page GAN ENG SENG SCHOOL Preliminary Examination 2024 CANDIDATE NAME CLASS INDEX NUMBER PHYSICS Paper 2 Sec 4 Express 6091/02 28 August 2024 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. 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 70 Section B 10

GESS 4EXP PHY P2 Prelim 24 TYL (CHL) 2 Section A [70 marks] Answer all the questions in this section. 1 In a car race called “demolition derby”, collisions between cars are common. Fig. 1.1 is a graph showing the motion of a car during the race. Fig. 1.1 (a) Estimate the displacement of the car at 500 s. displacement = ………………………… [2] (b) Estimate the average speed of the car from 0 s to 500 s. average speed = ………………………… [2] [Total: 4] time / s velocity / km h-1

GESS 4EXP PHY P2 Prelim 24 TYL (CHL) 3 2 A rock of weight 20 N is thrown through the air. At a particular time, a force of 50 N acts on the rock at an angle of 45  to the vertical, as shown in Fig. 2.1. Fig. 2.1 (not to scale) (a) Draw and label, with the letter R, the resultant force acting on the rock where a length of 1.0 cm represents 5.0 N. Determine the direction of the resultant force. resultant force = ………………………… [2] direction …………………………….…………………………………………………. [1]

GESS 4EXP PHY P2 Prelim 24 TYL (CHL) 4 (b) When the rock reached the highest point at a height of 15.0 m above the ground, it momentarily stopped and then dropped down vertically. If air resistance is negligible, calculate the speed of the rock just before it hit the ground. speed = ………………………… [2] [Total: 5] 3 The device shown in Fig. 3.1 is used to covert old newspapers into blocks that can be burnt. Fig. 3.1 (not to scale) The newspapers are soaked in water. The soaked paper is packed into the container. When a force F is applied at the end of the handle, the plate squeezes the water out of the paper and lea