PRCSS Prelim P1

[Turn over PASIR RIS CREST SECONDARY SCHOOL Preliminary Examination Secondary Four Express CANDIDATE NAME CLASS / INDEX NUMBER Physics 6091/01 Paper 1 Multiple Choice 26 August 2024 1 hour 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 index number on all the work you hand in. 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. 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. The use of an approved scientific calculator is expected, where appropriate. For Examiner’s Use 40 Parent’s Signature This document consists of 12 printed pages.

2 1 A car driver brakes with uniform deceleration when he sees a stop line 15 m ahead. The car stops at the stop line in 3.0 s. What is the speed of the car when the driver sees the stop line? A 5.0 m/s B 10 m/s C 20 m/s D 45 m/s 2 A parachutist falls from an airplane. As he falls, he experiences air resistance. The parachute is not opened yet. Graph 1 and 2 are displacement-time graphs. Graph 3 and 4 are velocity-time graphs. 1 2 3 4 Which graphs describe the motion of the parachutist? A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4 3 An astronaut initially weighs 800 N on the Earth. He travels to the Moon and does some physical work daily. He weighs 120 N on the Moon after a month. The gravitational field strength on the Moon is 1.6 N/kg. The gravitational field strength on the Earth is 10 N/kg. How much mass is lost by the astronaut? A 0 kg B 5 kg C 20 kg D 68 kg 4 An uniform cylinder of weight 30 N is placed next to a step as shown. The radius of the cylinder is 50 cm and the height of the step is 20 cm. What is the minimum force required to move the cylinder up the step? A 12 N B 15 N C 20 N D 30 N t s t s t v t v cylinder step

3 [Turn over 5 A pushing force moves an object of mass 4.0 kg at an acceleration of 2.0 m/s2 along a rough horizontal surface where the frictional force is 6.0 N. What is the pushing force acting on the object? A 2.0 N B 6.0 N C 8.0 N D 14 N 6 An alloy is made up of copper and tin. The copper has a volume of 40 cm3 and a density of 9.0 g/cm3. The tin has a volume of 10 cm3 and a density of 7.3 g/cm3. What is the density of the alloy? A 8.2 g/cm3 B 8.5 g/cm3 C 8.7 g/cm3 D 8.9 g/cm3 7 A manometer is connected to a gas supply as shown. The atmospheric pressure is 76 cm Hg. The