NYGH-2011-S3-EOY-Phy-P1

Class Register Number Name 南洋女子中学校 NANYANG GIRLS’ HIGH SCHOOL End-of-Year Examination 2011 Secondary Three PHYSICS Paper 1 Multiple Choice 45 minutes Monday 17 October 2011 0845 - 0930 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. The gravitational field strength near Earth’s surface, g = 10 N/kg Setters: AJL, BN, TWL This document consists of 13 printed pages. NANYANG GIRLS’ HIGH SCHOOL [Turn over

2011 End-of-Year Examination Secondary Three 2 Nanyang Girls’ High School AJL, BN, TWL Physics Paper / I 1 Which of the following correctly describes time, distance and displacement as vector or scalar quantities? Time Distance Displacement A scalar scalar scalar B scalar scalar vector C vector scalar vector D vector vector vector 3 It takes 42.4 s for a simple pendulum to swing from P to Q and back again to P twenty times. What is the frequency of the pendulum? A 0.024 Hz B 0.274 Hz C 0.472 Hz D 2.12 Hz 4 Which of the following best defines acceleration? A The rate of increase of speed B The rate of change of velocity C The total change in speed over time D The total change in velocity over time 2 What is the reading shown on the micrometer screw gauge below? A 7.42 mm B 7.92 mm C 8.42 mm D 10.42 mm 5 20 0 45 40 35 Q P O fixed point

2011 End-of-Year Examination Secondary Three 3 Nanyang Girls’ High School AJL, BN, TWL Physics Paper / I [Turn over 5 A body X of mass m is dropped from a height, h. At the same time, another body Y of mass 3m is dropped from a height 3h. Which one of the following statements is true? A Y will eventually overtake and pass X. B As they fall, the distance between them decreases. C As they fall, the distance between them remains constant. D As they fall, the distance between them increases. 6 The graph below shows how displacement of an object changes with time. Which section of the graph shows the object moving with decreasing velocity? A P B Q C R D S 7 A trolley is released from rest at the top of a ramp. As it moves down the ramp, it pulls a ticker-tape through a 50 Hz ticker timer. The diagram below shows the tape obtained. What is the acceleration of the trolley? A 3.8 m/s2