NYGH-2010-S3-EOY-Phy-P2

Class Register Number Name 南洋女子中学校 NANYANG GIRLS’ HIGH SCHOOL End-of-Year Examination 2010 Secondary Three PHYSICS 1 hour 45 minutes Paper 2 Theory Paper 1000 - 1145 Monday 18 October 2010 READ THESE INSTRUCTIONS FIRST Do not open this booklet until you are told to do so. Write your name, register number and class in the spaces at the top of this page and on any separate answer paper used. Section A (40 marks) Answer all questions. Write your answers in the spaces provided on the question paper. Section B (30 marks) Answer all questions. Write your answers in the spaces provided. Assume g = 10 m/s 2, unless specified otherwise by the questions. INFORMATION FOR CANDIDATES Examiner’s Use Section A Section B 10 11 12 Total The intended number of marks is given in the brackets [ ] at the end of each question or part question. You are advised to spend no longer than one hour on Section A and no longer than 45 minutes on Section B. Setters: TLH / MS / TBH This document consists of 17 printed pages. NANYANG GIRLS’ HIGH SCHOOL [Turn over

2010 End-of-Year Examination Secondary Three 2 Nanyang Girls’ High School Section A Answer all questions. Write your answers in the spaces provided. 1 Fig. 1.1 shows a cube of dimensions 2.0 cm, 3.0 cm and 4.0 cm. 2.0 cm 4.0 cm 3.0 cm Fig. 1.1 (a) Given the mass of the cube to be 36 g, calculate the density of the cube. [2] (b) The cube sinks when placed in water. Explain why this is so. ………………………………………………………………………………….…………………. ………………………………………………………………………………………………..…[1] (c) Complete the following table to show how the following physical quantities would change, if at all, if the cube were taken to the Moon. The first one has been answered for you. [2] Physical quantity Increase No change Decrease Dimensions of cube 9 Mass of cube Weight of cube Density of cube Setters: TLH / MS / TBH PHYSICS /II

2010 End- of-Year Examination Secondary Three 3 Nanyang Girls’ High School 2 Fig. 2.1 shows the velocity-time graph of a car moving from 1 set of traffic lights to the other. 0 5 10 15 20 25 30 4 8 12 velocity m/s time s Fig. 2.1 (a) What is the distance between the 2 traffic lights? distance = ………………………. [2] (b) During which interval of time is the rate of change of speed greatest? ………………………………………………………………………………….…………[1] (c) Calculate the average speed over the whole journey. Setters: TLH / MS / TBH PHYSICS /II [Turn over

2010 End-of-Year Examination Secondary Three 4 Nanyang Girls’ High School average speed = …………………. [1] 3 Fig. 3.1 shows a 30 N weight being supported by two strings from a ceiling. The tension forces in the two strings are T1 and T2. c