2022 FHSS Phy Prelims P1

1 Candidate Name: Class Index No. FUHUA SECONDARY SCHOOL 4E Secondary Four Express Preliminary Examination 2022 Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary Fuhua Secondary ________________________________________________________________________________ PHYSICS 6091/01 Paper 1 30 Aug 2022 0800 – 0900 1 hour Additional Material: Optical Mark Recognition (OMR) ___________________________________________________________________________________________________________ READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class, index number on the OMR and this question booklet. 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 OMR. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done on this paper. The use of an approved scientific calculator is expected, where appropriate. Setter: Mr Raymond Loh Vetter: Mrs Wong Kexin This question paper consists of 15 printed pages including this page. PARENT'S SIGNATURE FOR EXAMINER'S USE 40

2 pendulum Y X 1 The diagram shows a micrometer screw gauge. What is the reading shown? A 5.63 mm B 6.50 mm C 6.63 mm D 7.13 mm 2 The diagram shows a frictionless pendulum swinging between points X and Y at a frequency of 2.0 Hz. How long does it take for the bob to swing from X to Y? A 0.25 s B 0.50 s C 1.0 s D 2.0 s 3 A parachutist falling at a steady speed opens his parachute. Which row gives the direction of the resultant force and the direction of the acceleration of the parachutist just after his parachute opens? direction of the resultant force direction of the acceleration A downwards upwards B downwards downwards C upwards upwards D upwards downwards 20 15 10 5 0 5 mm pendulum

3 4 The graph shows how the displacement of an object changes with time. Which graph represents the velocity-time graph of the object? A B C D 5 The graph shows how the velocity of a model car travelling on a flat surface varies with time. Which statement about the model car is not correct? A Its acceleration is 2.7 m / s2. B Its distance travelled is 12 m. C It is moving at a uniform velocity. D It is moving in the same direction throughout the 3 s. 8 6 4 2 0 0 1 2 3 1 displacement m time s velocity m / s time s

4 6 The diagram shows the wheel of a moving car. The wheel is connected to the engine. The car is accelerating along a road in the direction shown. What is the direction of the frictional force exerted by the road surface on the wheel? 7 The propeller of a boat pushes water backwards with a force of 2000 N. The boat moves through the water against a total resistive force of 1800 N. What is the magnitude of the resultant force on the boat? A 200 N B 1800 N C 2000 N D 3800 N 8 Which property of an object causes the object to resist a change in the state of rest or motion of the object? A density B mass C velocity D volume resistive force on boat force on water due to propeller direction of motion of boat 1800 N 2000 N

5 9 A man is carrying a load on the end of a uniform pole of length 1.0 m and weight 5 N. He rests the pole on his shoulder at point P which acts as a pivot. He keeps the pole in balance with a downward force F with his hand, as shown. What is the force F applied by the man to balance the pole? A 12.0 N B 17.0 N C 34.3 N D 35.7 N 10 The diagram shows a mercury barometer and a mercury manometer placed beside each other. One end of the manometer is connected to a container filled with an unknown gas. What is the pressure of the gas? A 30 cm Hg B 60 cm Hg C 70 cm Hg D 100 cm Hg 20 N 0.60 m 0.35 m 80 70 40 10 0 cm metre rule connection to gas

6 11 A trolley of mass 20 kg moves from position P to Q along a rough track. At point Q, its gravitational potential energy is 100 J less than that at point P. Its speed at point P is 2.0 m / s. The work done against friction from point P to Q is 60 J. What is the speed of the trolley at point Q? A 2.8 m / s B 3.2 m / s C 4.4 m / s D 5.8 m / s 12 A 1500 kg car accelerates from 10 m / s to 30 m / s in 10 s. What is the average power output developed by the engine of the truck? A 15 kW B 30 kW C 60 kW D 600 kW 13 Very small pollen grains are suspended in water. A bright light shines from the side. Through a microscope, small specks of light are seen to be moving in a random, jerky manner. What are the moving specks of light? A Pollen grains being hit by other pollen grains. B Pollen grains being hit by water molecules. C Water molecules being hit by other water molecules. D Water molecules being hit by pollen grains. trolley pollen grains in water bright light microscope eye

7 14 A sealed container contains nitrogen gas. What will happen to the gas molecules when the container is heated? A They will become denser. B They will expand. C They will move further apart. D They will move more quickly. 15 The diagram shows a cylinder made of insulating material with a movable piston at one end. The piston can be pushed or pulled without the gas leaking out. Which statement about the gas when the piston is moving is not correct? A The density of the gas decreases as the piston is pulled outwards. B The mass of the gas in the piston remains unchanged. C The pressure of the gas decreases as the piston is pulled outwards. D The temperature increases as the piston is pushed gently inwards. 16 When a hand is placed on a metal surface and a wooden surface at room temperature, it feels colder on the metal surface than on the wooden surface. Which statement is the correct explanation? A The metal surface is a better absorber of infra-red than wooden surface. B The metal surface is a better thermal conductor than wooden surface. C The metal surface is a better emitter of infra-red than wooden surface. D The metal surface is at a much lower temperature than the wooden surface. 17 Which statement is true about the particles that remain in a liquid during evaporation? A The average size of the particles is decreasing. B The average size of the particles is increasing. C The average speed of the particles is decreasing. D The average speed of the particles is increasing. 18 Two different liquids, X and Y, with the same mass and initial temperature, are heated by the same heat source. Liquid X reaches a temperature of 60°C slower than liquid Y. Which statement is the correct explanation? A Liquid X has a higher specific heat capacity than liquid Y. B Liquid X has a higher specific latent heat of fusion than liquid Y. C Liquid X has a lower specific heat capacity than liquid Y. D Liquid X has a lower specific latent heat of fus