2023 TPSS Phy Prelims P1

TAMPINES SECONDARY SCHOOL Secondary Four Express PRELIMINARY EXAMINATION 2023 NAME CLASS REGISTER NUMBER PHYSICS 6091/01 Paper 1 Multiple Choice 21 Aug 2023 1 hour Additional Instructions 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 forty 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 answer in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. 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 use of an approved scientific calculator is expected, where appropriate. This document consists of 15 printed pages. © TPSS/6091/01/2023/SEC4/PRELIMS O

2 1 Which of the following is a possible reading obtained from using a metre rule? A 0.6 m B 0.64 m C 0.643 m D 0.6431 m 2 Peng Zhong used a micrometer screw gauge to measure the thickness of a metal sheet. The diagram shows part of the apparatus. However, this micrometer screw gauge has an inherent zero error of –0.03 mm. What is the actual thickness of the metal sheet? A 7.80 mm B 7.86 mm C 10.30 mm D 10.36 mm 3 Which car, moving from rest, has an average acceleration of 2.5 m/s2? A a car reaching a speed of 10 m/s in 2.5 s B a car reaching a speed of 25 m/s in 2.5 s C a car reaching a speed of 30 m/s in 20 s D a car reaching a speed of 50 m/s in 20 s 4 A 20 N force pushes a 5.0 kg object along a horizontal rough surface where the frictional force is 5.0 N. What is the acceleration of the object? 5 40 35 30 25

3 A 1.0 m/s2 B 3.0 m/s2 C 4.0 m/s2 D 5.0 m/s2 5 A tray supports a 1 kg mass and a 3 kg mass as shown. The gravitational field strength is 10 N/kg. What is the force acting on the 1 kg mass by the 3 kg mass? A 10 N B 20 N C 30 N D 40 N 6 The acceleration due to the gravity of the Moon is one-sixth of that of the Earth. If a stone is thrown upwards, which graph shows the variation of the speed of the stone with time as it goes up on the Moon and on the Earth? A B C D tray 3 kg 1 kg 0 Earth speed m/s time / s Moon 0 Earth speed m/s time / s Moon 0 Earth speed m/s time / s Moon 0 Earth speed m/s time / s Moon

4 7 Four forces are applied to a circular object as shown in the diagram. Which of the following gives the correct resultant moment and resultant force on the object? 8 The table below gives the height of the centre of gravity above the base and the base area of several cuboids. Which of the following statements is true? A P has the greatest stability while R has the least stability. B R has the greatest stability while Q has the least stability.