62_2021_BPGH 4E Prelim PHY P2

This paper consists of 27 printed pages and 1 blank page. Name of Candidate: ____________________ ( ) Class: _________ Calculator Model: BUKIT PANJANG GOVERNMENT HIGH SCHOOL PRELIMINARY EXAMINATION 2021 SECONDARY 4 EXPRESS PHYSICS Paper 2 Theory Candidates answer on the Question Paper. No additional materials are required 6091/02 Date: 23 Aug 2021 Duration: 1 hr 45 min Time: 1100 – 1245 h READ THESE INSTRUCTIONS FIRST Write your name, register number and class on all the work you hand in. Write in dark blue or black ink on both sides of the paper. You may use a soft pencil for any diagrams or graphs. Do not use staples, paper clips, highlighters, glue or correction fluid. Section A Answer all questions. Section B Answer all questions. Question 11 has a choice of parts to answer. 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 al l 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 For Examiner’s Use 1 5 Section A Total [50] 2 6 Section B Total [30] 3 7 Overall Total [80] 4 8 Setter: Mdm Chee Wei Wei [Turn over

2 ©BPGHS 2021 6091 / SEC 4 EXP PHY PRELIM / P2 [Turn over Section A (50 marks) Answer all the questions in this section. 1 A motor boat travels due north at a steady speed of 3.0 m/s through calm water in which there is no current as shown in Fig. 1.1. (a) Explain how the first statement gives information not only about the speed of the boat but also about its velocity. .................................................................................................................................... ................................................................................................................................ [1] (b) The boat then enters an area of water in which a steady curr ent flows at 2.0 m/s in a south-west direction as shown in Fig. 1.2. Both the engine power of the boat and its course setting remain unchanged. Draw a vector diagram to determine the magnitude and direction of the resultant velocity of the boat. magnitude = ………………… direction =……………