PL_2022_EOY_4NA_Science (Physics)_P2

PATHLIGHT SCHOOL END OF YEAR EXAMINATION SECONDARY 4 NORMAL (ACADEMIC) CANDIDATE NAME CENTRE NUMBER S INDEX NUMBER SCIENCE 5105/02 Paper 2 Physics August 2022 Papers 1 and 2: 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, index number and name on all the work you hand in. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil for any diagrams or graphs. Do not use staples, paper clips, glue or correction fluid. Answer all questions in Section A and any two questions in Section B. The use of an approved scientific calculator is expected, where appropriate. In calculations, you should show all the steps in your working, giving your answer at each stage. You are advised to spend no longer than 30 minutes on Paper 1. You may proceed to answer Paper 2 as soon as you have completed Paper 1. You may lose marks if you do not show your working or if you do not use appropriate units. At the end of the examination, hand in your answers to Paper 1 and Paper 2 separately. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 11 printed pages and 1 blank page. [Turn over

2 Section A Answer all the questions in the spaces provided. 1 (a) Convert the following using a correct prefix symbol. 789.2 × 10-8 = 7.892 …… g [1] 7.892 x 10-6 = (b) Convert the following value to the required unit. 0.06 km2 = …………………………. m2 [1] 0.06 x 1 000 000 = 60 000 m2 (c) A student wants to find the period of a pendulum made from a string of length 1 m and a steel ball. He uses a digital stopwatch to measure the time taken for the pendulum to make 20 oscillations. The process is repeated five times and the results are as follows: 35.26 s 36.23 s 34.83 s 34.94 s 36.02 s Calculate the period of the pendulum. Total time = 177.28 T = 177 / (20*5) = 1.77 s period = ………………………… s [2]

3 2 A student conducts an experiment to study the motion of a toy car. He attaches a ticker tape to the back of the toy car. When the tape is pulled along by the toy car, the ticker timer punches holes onto the tape. The ticker timer punches 20 holes in one second. The resulting tape after the toy car travels from X to Y is as shown. (a) Determine the time taken for the toy car, as it travels from X to Y. 1/20=0.05 0.05 x 6 = 0.3 s time taken = ………………………… s [2] (b) Estimate the final velocity by considering the last 0.60 m of the tape shown. Time =