Woodgrove 4NA Physics Paper 2

1 Name Index Number Class N LEVEL PRELIMINARY EXAMINATION 2022 LEVEL & STREAM : Secondary 4 Normal (Academic) SUBJECT (CODE) : Science (Physics) (5105) PAPER NO : 2 DATE (DAY) : 16 August 2022 (Tuesday) DURATION : 1 hr 15 mins (Paper 1 & Paper 2) READ THESE INSTRUCTIONS FIRST Write your class, index number and name on the work you hand in. Write in dark blue or black pen. You may use an HB pencil for any diagrams, graphs, tables or rough working. 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. 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. For Examiner’s Use Section Marks A /14 B /16 Student’s Signature Parent’s Signature Total /30 Date Date This document consists of 10 printed pages including this cover page. Setter : Mr Phillip Tan

2 Section A Answer all the questions in the spaces provided. 1 The list below shows four units used to measure physical quantities. ohm kilogram newton joule per column Complete the table below to show the correct unit used to measure the physical quantity. quantity unit mass resistance weight electromotive force [2] 2 The diagram below represents a wave. Point C represents the crest of the wave. The distance between point C and P is 45 cm. (a) Mark and label, with the letter T, one of the troughs of the above wave. [1] (b) Calculate the wavelength of the above wave. wavelength = …………………………………. cm [1]

3 (c) The period of the wave is given as 10 seconds. Calculate the frequency of the wave. frequency of wave = …………………………………. Hz [1] (d) Calculate speed of the wave. Write down the unit for your answer. speed of wave = …………………………………. unit …………………………………. [2] 3 The diagram below shows how a metal rod and a small rock can be used to lift a stone. A minimum force is applied at point A to lift the rock. (a) State one method on how to reduce the minimum force needed to lift the big rock. ………………………………………………………………………………………………. ………………………………………………………………………………………………. [1] (b) Explain your answer in (a). ………………………………………………………………………………………………. ………………………………………………………………………………………………. [1]

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