NYGH 2010-S3-EOY-Phy-P1

Class Register Number Name 南洋女子中学校 NANYANG GIRLS’ HIGH SCHOOL End-of-Year Examination 2010 Secondary Three PHYSICS 45 minutes Paper 1 Multiple Choice 0845 - 0930 Monday 18 October 2010 Additional materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Do not open this booklet until you are told to do so. Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, class and register number on the Multiple Choice Answer Sheet provided. There are thirty questions in this paper. Answer all questions. For each question there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the answer sheet. INFORMATION FOR CANDIDATES Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet. Assume g = 10 m/s², unless specified otherwise by the question. Setter: MS / TLH / TBH This document consists of 9 printed pages. NANYANG GIRLS’ HIGH SCHOOL [Turn over

2010 End-of-Year Examination Secondary Three 2 Nanyang Girls’ High School 1 Which of the following is not a base SI unit? A newton B kilogram C ampere D second 2 The diagram shows an object being measured using a pair of vernier callipers. 4 5 cm scale 0 10 vernier scale 5 What is the reading on the vernier callipers? A 4.06 cm B 4.26 cm C 4.84 cm D 4.86 cm 3 The length of a pendulum is to be measured with a metre rule. 82 83 What is the reading? A 82.2 cm B 82.4 cm C 83.4 cm D 83.6 cm 4 A student recorded her readings from a micrometer without checking the instrument for zero error. What possible type of error ma y affect all of her readings? A Parallax error B Random error C Human reaction time error D Systematic error Setters: MS / TLH / TBH Physics / I

2010 End-of-Year Examination Secondary Three 3 Nanyang Girls’ High School 5 An equation to determine an unknown, X, gives the result: X = 10.0 cm 30 s This value of X should best be expressed as A 1/3 cm/s C 0.33 cm/s B 0.3 cm/s D 0.333 cm/s 6 Two cars A and B start from rest simultaneously and travel along the same straight road. The velocity-time graphs of the two cars are shown below. velocity B A 0 T m/s time s Which of the following stat ements about the motion of the two cars is always correct? A A and B have the same average acceleration during the time interval 0 to T. B A and B have the same average velocity during the time interval 0 to T. C A and B have the same average speed during the time interval 0 to T. D A and B travel the same displacement during the time interval 0 to T. 7 Oil drips at a constant rate from a moving car. The diagram show s the pattern of the drips on a road. Which of the following statements describes the motion of the car? A It accelerated and then moved at a steady speed. B It accelerated and then slowed down. C It moved at a steady speed and then slowed down. D It moved at a steady speed and then accelerated. Direction of motion CAR Setters: MS / TLH / TBH Physics / I [Turn over

2010 End-of-Year Examination Secondary Three 4 Nanyang Girls’ High School 8 In an experiment to determine the accele ration of a car, which of the following measurements is not required? A The mass of the car. B The initial velocity of the car. C The final velocity of the car. D The duration of the acceleration. 9 Objects released near the surface of the moon fall more slowly than on Earth because A they have greater mass on the Earth. B they have greater inertia on the moon. C the gravitational field strength of the Earth is greater. D the normal reaction force on the moon is greater. 10 Two blocks, Y and Z of mass 1.0 kg and 3.0 kg respec tively are placed on a horizontal smooth surface as shown below. A horizontal constant force of 12 N is applied to Block Y so that the two blocks move to the right with a uniform acceleration of 3.0 m/s 2. What is the magnitude of the contact force between Y and Z? A 3.0 N B 4.0 N C 8.0 N D 9.0 N 11 Which of the following forces cannot be obtained from the addition of a 4.0 N force and a 9.0 N force? A 6.5 N B 8.0 N C 11.0 N D 13.5 N 12 A girl is able to balance a Physics textbook on one of her fingertips. Which of the following statements best explains this phenomenon? A The centre of gravity of the book is right below the pivot. B The line of action of the weight passes through the pivot. C The sum of clockwise moments equals the sum of anticlockwise moments about the pivot. D There is no force acting on the book. Y Z 12 N Setters: MS / TLH / TBH Physics / I

2010 End-of-Year Examination Secondary Three 5 Nanyang Girls’ High School A 1.2 W B 6.0 W C 7.5 W D 30 W 13 A rod is balanced by three forces, 2.0 N, 3.0 N and F. The pivot P is situated 5.0 cm from the 2.0 N force and 20.0 cm from the 3.0 N force. What is the moment produced by F about the point P? F P 20.0 cm 5.0 cm 3.0 N 2.0 N A 0 Ncm B 50 Ncm C 70 Ncm D 125 Ncm 14 A girl releases a ball of mass 0.50 kg from a height of 2.0 m. When the ball reaches position X, it attains a speed of 4.0 m/s. X 0.50 kg 2.0 m floor 4.0 m/s Determine the gravitational potential energy of the ball at position X. Take the floor as the reference for zero energy level. A 6.0 J B 8.0 J C 10 J D 12 J 15 A block is being pulled by a horizontal fo rce of 3.0 N on a rough surface. The block moves at a constant speed of 2.0 m/s for 5.0 s. rough surface 3.0 N What is the power developed by the 3.0 N horizontal force? Setters: MS / TLH / TBH Physics / I [Turn over

2010 End-of-Year Examination Secondary Three 6 Nanyang Girls’ High School 16 T m b low s whic es 6.0 m by 8.0 m. A 2.0 m B 3.0 m C 4.0 m D 5.0 m 7 A light ray is incident normally on a mirror as shown below. The angle of reflection for the ray will be A 180° B 90° C 45° D 0° 8 When light waves pass from air into glass, which of the following is correct? A The frequency of the light waves will remain the same. 9 Which of the following diagrams correctly sh ows light travelling through a semi-circular A B C D he diagra e hows the top view of a room PQRS h measur An observer stands at the centre of the room with his back to RS. Q R 6.0 m 8.0 m observer S P In order for the observer to see the full width of the wall RS, what is the minimum width required of a plane mirror placed at eye level on the wall PQ? 1 1 B The amplitude of the light waves will increase. C The wavelength of the light wave will increase. D The shape of the light wave will change. 1 glass block in air? Setters: MS / TLH / TBH Physics / I

2010 End-of-Year Examination Secondary Three 7 Nanyang Girls’ High School A B C D principal axis F2F lens wards the 1 At which positions, A, B, C or D, should an object be placed in front of a lens, with its d 22 L is a lens with a principal focus at F. Which of the following rays, A, B, C or D, is the 20 The diagram shows a semi-circular glass bl ock with an incident ray shining to centre of the flat face as shown. The critical angle of the glass block is labelled C. Which line correctly shows the subsequent path of the light ray? 2 principal focus at F, such that its image produced will be suitable for use in an overhea projector? most likely emergent ray after the incident ray passes throug