EFSS 5105 4NA EOY Sci Phy P2 2022

Class: Candidate Name: Candidate Index Number: EDGEFIELD SECONDARY SCHOOL 2022 PRELIMINARY EXAMINATION Secondary 4 NA Syllabus SCIENCE (PHYSICS) Paper 2 Candidates answer on the Question Paper. No additional materials are required 5105/02 Aug 2022 Paper 1 and 2 1 hour 15 minutes READ THESE INSTRUCTIONS FIRST Write your name, class and index number in the box above. Write in dark blue or black ink. You may use a soft pencil for any diagrams, graphs 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 more 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. Acceleration due to gravity, g, is assumed to be 10 m/s2 unless otherwise stated. This document consists of 11 printed pages and 1 blank page. [Turn over FOR EXAMINER’S USE My target grade/mark:  SECTION A SECTION B TOTAL /14 /16 / 50 Parent’s Signature

EFSS2022/MYE/SC/4NA/TCS [Turn over 2 Section A Answer all the questions in the spaces provided. 1 Fig. 1.1 shows the horizontal forces acting on a swimmer. Fig. 1.1 (a) Calculate the size and direction of the resultant horizontal force on the swimmer. size of resultant force = …………………………….N direction of resultant horizontal force : ………………………… [1] (b) State the name of the 110 N force on the swimmer. ………………………………………………………………………………………….[1] (c) Fig. 1.2 shows the horizontal forces acting on the swimmer as he moves forwards a short time later. Fig. 1.2 Describe and explain the motion of the swimmer. ……………………………………………………………………………………………. ……………………………………………………………………………………………. ………………………………………………………………………………………….[2]

EFSS2022/MYE/SC/4NA/TCS [Turn over 3 2 A uniform metre rule is balanced at the 50 cm mark. Weights of 1.5 N and 3.0 N are hung from the 10 cm and 40 cm marks respectively, as shown in Fig. 2.1. Fig. 2.1 A weight W hanging from the 80 cm mark balances the system. (a) Calculate the sum of moment of the 1.5 N and 3.0 N weights about the 50 cm mark. moment = …………………………. Ncm [1] (b) Calculate the value of the weight W. weight W = …………………………. N [1] (c) Indicate with an arrow, the we