Tampines 2022 4N Sci Phy Prelim P1 (ans)

This document consists of 8 printed pages © TPSS/5105/02/2022/SEC4/MYE TAMPINES SECONDARY SCHOOL Secondary Four Normal Academic PRELIMINARY EXAMINATION 2022 NAME CLASS REGISTER NUMBER SCIENCE (PHYSICS) 5105/01 Paper 1 Multiple Choice 01 August 2022 Papers 1 and 2: 1 Hour 15 minutes Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and register number on the Answer Sheet in the spaces provided unless this has been done for you. There are twenty questions on 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 separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Answers to Paper 1 and Paper 2 must be handed in separately. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. 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. Any rough working should be done in this booklet. The use of an approved scientific calculator is expected, where appropriate. [Turn over NA

2 distance time distance time distance time time distance 1 What is the reading of the vernier callipers shown below? A 4.40 cm B 4.50 cm C 5.40 cm D 5.54 cm 2 What should be used to measure the thickness of a thread as accurately as possible? A ruler B measuring cylinder C vernier calipers D micrometer screw gauge 3 Which of the following distance-time graphs shows that the speed of an object is increasing? A B C D

3 4 An experiment was conducted to investigate the friction between a moving wooden block and the horizontal, flat surface of a bench. The mass of the block is 2 kg while the frictional force on the bench is 2 N. Which of the following statements best describes the acceleration of the block when the applied force is increased from 2 N to 10 N? A The acceleration increases from 1 m/s2 to 4 m/s2. B The acceleration increases from 0 m/s2 to 4 m/s2. C The acceleration decreases from 4 m/s2 to 1 m/s2. D The acceleration decreases from 4 m/s2 to 0 m/s2. 5 The diagram shows a squared-shaped tile hanging loosely on a nail. Which of the following best indicate the centre of gravity of the tile? 6 A uniform beam is pivoted at its centre of mass. It is acted upon by two forces as shown. What is the resultant moment about the pivot? A 25 Ncm anti-clockwise B 25 Ncm clockwise C 175 Ncm anti-clockwise D 175 Ncm clockwise 2 kg applied force frictional force of 2 N

4 7 A car of mass 900 kg moves from point X to point Y along a section of level road, down a hill, and along another se