2023 ACSBR Phy Prelims P1

Anglo-Chinese School (Barker Road) PRELIMINARY EXAMINATION 2023 SECONDARY FOUR EXPRESS PHYSICS 6091/01 (PAPER 1 Multiple Choice) TIME: 1 HOUR READ THESE INSTRUCTIONS FIRST Write your name and Exam Index number on the Answer Sheet in the spaces provided. Write in soft pencil. 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 separate Answer Sheet. 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. This question paper consists of 12 printed pages

Anglo-Chinese School (Barker Road) Preliminary Examination 2023 2 Secondary 4 Express Physics 6091/01 1 A micrometer is used to measure the diameter of a wire. The diagrams show th e micrometer when the jaws are closed and the micrometer when the wire is between the jaws. What is the diameter of the rod? A 4.42 mm B 6.61 mm C 6.67 mm D 7.11 mm 2 The diagram shows a simple pendulum. Using a stopwatch, which would be the most accurate way to measure the period of the pendulum? A Time the motion from X to Y and back to X. B Time the motion from X to Y and back to X again for 20 cycles and multiply by 20. C Time the motion from X to Y and back to X for 20 cycles and divide by 20. D Time the motion from X to Y and double it. 3 Green light has a wavelength of 550 nm. What is the wavelength of blue light? A 0.450 m B 0.650 m C 4.500 m D 6.500 m Micrometer when jaws are closed micrometer when wire is between the jaws 0 45 0 10 15 5 pendulum bob X Y

Anglo-Chinese School (Barker Road) Preliminary Examination 2023 3 Secondary 4 Express Physics 6091/01 4 What is the order of magnitude of the diameter of a human hair? A 10-8 m B 10-6 m C 10-4 m D 10-2 m 5 Which pair contains a vector and a scalar quantity? A area and displacement B distance and volume C temperature and pressure D weight and velocity 6 Two forces, 3 N and 7 N respectively, are acting on a small ball-bearing. Which is a possible resultant force acting on the ball-bearing? A 1 N B 3 N C 8 N D 11 N 7 Which quantity does not have a unit? A electric current B gravitational field strength C potential difference D refractive index 8 A 1000 kg mass was placed 2 m directly above a 1 kg mass and both were dropped from a tower at the same time. Assuming air resistance is negligible, Which statement is correct about the time of landing? A Not possible to predict. B The 1000 kg mass would land on the ground at same time as the 1 kg mass. C The 1000 kg mass would land on the ground faster than the 1 kg mass. D The 1000 kg mass would land on the ground later than the 1 kg mass.

Anglo-Chinese School (