2022 CWSS Prelim 4NA SCI (PHYSICS) P1_final

COMMONWEALTH SECONDARY SCHOOL PRELIMINARY EXAMINATION 2022 SECONDARY FOUR NORMAL (ACADEMIC) Name: _____________________________________ ( ) Class: __________ SCIENCE (PHYSICS) Paper 1 Multiple Choice 5105/01 12 Aug 2022 (Fri) 1130 - 1245 Additional Materials: Multiple Choice Answer Sheet Papers 1 and 2: 1 hour 15 minutes READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips or correction fluid. Write your name, index number and class on the Answer Sheet in the spaces provided unless this has been done for you. There are twenty 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 separate Answer Sheet. Read 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. Setter: Ms Ye Dan This document consists of 8 printed pages and 1 blank page. [Turn over

2 1 Which quantity is a vector? A density B distance C time D weight 2 Two identical balls are released from a building at the same time. One falls from the fifth storey while the other falls from the third storey. Which of the following quantities is the same for both balls? A acceleration B final velocity C time of travel D speed at the second storey 3 A parachutist of weight 600 N falls towards the ground at a constant velocity of 4.0 m/s. What is the resultant force acting on the parachutist? A 0 N B 60 N C 240 N D 600 N 4 A robotic rover has a weight of 186 0 N. The Earth’s gravitational field strength is 10.0 N/kg. When it lands on the Mars, it experiences the Mar’s gravitational field strength of 3.72 N/kg. What is the weight of the rover on the Mars? A 5.00 N B 69.2 N C 50.0 N D 692 N

3 5 A student is standing in a stationary train. The train suddenly starts to move in the direction the student is facing. Which of the following correctly describes and explains what happens to the student? A The student will tend to fall forward, due to his weight. B The student will tend to fall backward, due to his mass. C The student will tend to fall backward, due to his weight. D The student will tend to fall forward, due to his mass. 6 A piece of card has its centre of gravity at point CG. Which diagram shows the piece of card at equilibrium when suspended by a thread? A B C D

4 7 A student has two b