2023 CGS Phy Prelims P1 w Ans

This paper consists of 19 printed pages (including the cover page). READ THESE INSTRUCTIONS FIRST Write your name, index number and class in the spaces provided at the top of this page and on the optical answer sheet. Do not use staples, paper clips, highlighters, glue or correction fluid. There are forty 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 optical 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. CRESCENT GIRLS’ SCHOOL SECONDARY FOUR PRELIMINARY EXAMINATION PHYSICS 6091/01 Paper 1 28 August 2023 1 Hour Class: Register No: Name:

2 23/S4/6091 − Crescent Prelim 1 The magnitudes of three different electric charges are given below. What is the correct order of size, from smallest to largest? A 1 kC → 1 mC → 1 MC B 1 mC → 1 kC → 1 MC C 1 mC → 1 MC → 1 kC D 1 MC → 1 mC → 1 kC 2 Two forces X and Y act as shown. Which diagram shows the resultant force R of X and Y? A B C D

3 23/S4/6091 − Crescent Prelim 3 Car A and Car B are moving on two parallel straight tracks. Car A starts moving from rest when Car B passes it at t = 0 s. Which statement about the graph is correct? A Car A covers more distance than Car B from t = 0 s to t = 30 s. B Car A covers less distance than Car B from t = 0 s to t = 15 s. C Car B covers more distance than Car A from t = 15 s to t = 30 s. D Car B covers the same distance as Car A from t = 0 s to t = 15 s. 4 The diagram shows a person walking to the left. Which arrow shows the direction of friction acting on the shoe?

4 23/S4/6091 − Crescent Prelim 5 The diagram shows three forces acting on the centre of gravity G of a body which is initially at rest. The 40 N forces make an angle θ with the line GX. What is the subsequent motion of the body? A It accelerates to the left. B It accelerates to the right. C It moves at a constant speed to the left. D It moves at a constant speed to the right. 6 When a heavy coin falls a short distance towards the ground, it does not reach terminal velocity. Which best explains the above? A The coin does not hit the ground. B The weight of the coin equals to the air resistance. C The weight of the coin increases as air resistance increases. D The weight of the coin is always more than the air resistance. 7 A girl is sitting in an aeroplane which takes off and climbs to 12 000 m in a certain time. During this ascent, what happens to the mass and to the weight of the girl? mass weight A decreases decreases B increases increases C unchanged decreases D unchanged i