4N 2021 PHY PY PAPER 1

[Turn over This exam paper is the property of Ping Yi Secondary School. It must not be duplicated in part or whole. This document consists of 6 printed pages, including this cover page. ‘Perseverance Yields Success’ Ping Yi Secondary School Preliminary Examination 2021 Secondary 4 Normal Academic SCIENCE (PHYSICS) 5105/01 Paper 1 Multiple Choice 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 in the spaces at the top of this page. There are twenty questions in this section. 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 Multiple Choice 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 more 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 This exam paper is the property of Ping Yi Secondary School. It must not be duplicated in part or whole. 2 Choose the most suitable answer and shade your answer in the OAS provided. 1 Which of the following is equivalent to 3 MV? A 0.003 V B 0.03 V C 3 000 V D 3 000 000 V 2 The graph shows how the speed of a car changes with time. What is the distance travelled by the car when it is moving at constant speed? A 10 m B 100 m C 200 m D 400 m 3 A submarine of mass 1000 kg dives in water with a uniform speed of 3 m/s. What is the resultant force exerted on the submarine as it dives? A 0 N B 500 N C 1 000 N D 2000 N 4 A waiter quickly pulls a cloth from under a dish on a table. The dish resists the change in the state of rest and stays on the table. What is this resistance to any change of motion known as? A balance B force C inertia D weight

[Turn over This exam paper is the property of Ping Yi Secondary School. It must not be duplicated in part or whole. 3 5 A beaker of mass 200 g contains 120 cm3 of a liquid. The total mass of the container and the liquid is 280 g. What is the density of the liquid? A 0.67 g/cm3 B 1.5 g/cm3 C 1.7 g/cm3 D 2.3 g/cm3 6 A uniform rod is pivoted at its mid-point. Two weights of 12 N and 8 N are added to the rod as shown in the diagram. Another vertical force is applied at point E to balance the rod. What is the magnitude and direction of this force? magnitude direction A B C D 2.0 N 2.0 N 4.0 N 4.0 N dow