2021 Sec 4Exp_Phy_Prelim P1

This paper consists of 16 pages including the cover page GAN ENG SENG SCHOOL Preliminary Examination 2021 CANDIDATE NAME CLASS INDEX NUMBER PHYSICS Paper 1 Multiple Choice Sec 4 Express 6091/01 13 September 2021 1 hour Additional Materials: OTAS Calculators are allowed in the examination READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, class and index number on the OTAS. 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 choice in soft pencil on the separate OTAS. Read the instructions on the OTAS 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. Total Marks 40

GESS 4EXP PHY P1 PRELIM 21 CHL 2 1 Which of the following represents the lowest speed? A 200 000 nm/s B 0.02 dm/min C 20 µm/s D 2 cm/h 2 Jovan was using the follo wing pendulum to find out the time taken for the pendulum bob to travel. He released the pendulum bob at A and obtained a total time of 25.28 s as the pendulum bob swings past B twenty times. What is the time taken for the pendulum bob to swing from A to B? A 25.28 / (4 x 20) B 25.28 / (4 x 10) C 25.28 / (2 x 4 x 20) D 25.28 / (2 x 4 x 10) 3 Two balls, A and B, were thrown up by Yong Pang and David respectively. It was observed that ball A landed on the ground much earlier than ball B. What can be deduced based on this observation? Assume there is no resistance during the throw. A Yong Pang threw up the ball with a higher speed than David. B David threw up the ball with a higher speed than Yong Pang. C Ball A is having a higher mass than ball B. D Ball B is having a higher mass than ball A. A C B Point of suspension

GESS 4EXP PHY P1 PRELIM 21 CHL 3 4 The graph below shows the displacement of a falling object with time. What time will it start to experience terminal velocity? A 0 s B 1 s C 3 s D 4 s 5 Darren was pushing a box from rest along a rough surface with a force of 5 N. The box with a mass of 1 kg accelerated at 2 m/s2. What is the friction force on the rough surface? A 1 N B 2 N C 3 N D 7 N 6 Two boxes, P and Q, were pushed along a smooth surface from rest. Box P accelerated twice the acceleration of box Q. Box Q has a mass thrice of box P. Which of the following shows the correction relationship between force exerted on box P, Fp and force on box Q, FQ? A Fp = (2/3) FQ B Fp = (3/2) FQ C Fp = 3 FQ D Fp = 6 FQ