Compassvale Secondary Pure Physics Prelim 2022

BP-102 HfH+H COMPASSVALE SECONDARY SCHOOL PRELIMINARY EXAMINATION 2022 PHYSTCS 6091/01 Paper 1 Multiple Choice Secondary Four Express Duration:1hour Date: 26 August 2022 Marks: l4AClass: Sec 4 E5 READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name and index number on the optical mark sheet in the spaces provided 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 mark 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 paper consists of 17 printed pages including this page PartnerlnLeaming 102 Setter: Mr Ng JunJie Name: _ lndex No:

BP-103 2 1 Which order shows the units of energy in the conect order of increasing size? A J ---+ kJ --+ mJ nJ ---+ UJ B mJ ---+ nJ pJ kJ GJ C MJ ---+ mJ -r J ---+ kJ GJ D nJ .--' UJ ---+ mJ kJ ---+ MJ A student measures the thickness of 20 sheets of metal with a micrometer. The diagram shows the reading on the midometer. 15 10 What is the average thickness of one sheet of metal? A 0.157 mm B 0.182 mm C 0.207 mm 2 D 0.357 mm 3 A student uses a ticker-timer to investigate the movement of a remote-controlled toy car. ticker-timer remote-controlled direction of travel -____> paper tape toy car The ticker{imer vibrates at 10 Hz as the paper tape is pulled through the ticker-timer by the car and the diagram shows a section of the tape that was cut out to analyse its motion. 12 cm What is the average speed of the toy car between the two markings P and Q? A 17 cm/s B 15 crn/s C 9.6 cm/s D 8.4 cm/s 0 .aa aaP oo PartnerlnLeaming 103

BP- 104 J 4 The graph shows how the displacement of a car changes with time. displacement S Which row describes the car's motion for each five-second period? The graph shows how the velocity of a particle moving along a straight line, changes with time. m 0 20 5 10 velocitu mls -10 -20 time 246 14 S What is the displacement of the particle at the end of '14 s? A 180m B 20m G -20m D -100m 6 The diagram shows the resultant R of a 3.0 N and a 7.0 N force that act at a point P. 7.0 N R 3.0 NP 0to5s 5 to 10 s 10to15s 15 to 20 s A B c D at rest at rest at rest at rest decelerating accelerating accelerating decelerating uniform velocity at rest uniform velocity at rest 10 12 PartnerlnLeaming 't04 time The angle between the 3.0 N force and the 7.0 N force can be any value from 0" to 180". Which value of R is not possible? A 2.0N B 4.0N C 6.0N D 8.0N irs10 uniform decelerationl uniform velocity I unitorm vetocity I uniform velocity I

BP-105 4 7 A solid object, immersed in water, hangs from an elastic thread. Three forces act on the object: its weight W, the tension in the thread I, and an upward force F from the water. thread solid object water - Which equation is correct when the obiect is stationary? A F+W=0 B F-r=0 C F-T-W=0 D F+T-W=o I A man jumps vertically upwards by exerting a force of 750 N on the floor. man floor I 750 N The man has a mass of 60 kg and the gravitational field strength g is 10 N/kg. What is the acceleration of the man as he just leaves the floor? A - 2.5 m/s2 B 1.25 mls2 C 2.5 mlsz D 12.5 m/sz An astronaut in a space station orbits the Earth. When he places his camera at eye level and lets go of it, it stays at his eye level. At the height at which he orbits, the earth's gravitational field strength is 5.0 N/kg. Which statement conectly describes the siluation? A The camera has mass and no weight. B The camera has no weight and no mass. C The camera has weight and mass. D The camera has weight but no mass. Pa n€dnLeaming 105

BP- 106 5 10 The graph shows how the volume of a sample of solid X changes with temperature as it is heated. 14 14.0 volume cm3 13.5 13.0 temoerature 260 280 300 320 340 360 380 The mass of the sample of solid X is 160 g. What is the density of the liquid X at 328 "C? A 11.1 g/cm3 B 11.49/cm3 C 11.79/cm3 D 12.09/cm3 1',l Piston X is pushed into a hydraulic cylinder. Piston X produces a pressure P1 in the liquid in the cylinder. The diagram shows the cylinder viewed from above. piston X piston Z liquid piston Y view from above There are two other pistons, Y and Z, in the cylinder. The pressures on piston Y and Z are Pv and Pz. What is the r€lationship between Px, Pv and Pz? A Px=Pv+Pz B Px>Pv>Pz C Px<Pv<Pz D Px=Pv=Pz II = -,I PartnerlnLeaming 106

BP- 107 6 12 't3 Blood pressure can be measured by using a mercury manometer. Blood pressure varies by 5.5 kPa as a heart beats. The density of mercury is 13600 kg/m3 and the gravitational field strength g is 10 N/kg. What is the change in the height difference between the levels in the manometer during a heartbeat? A 40.4 mm B 80.9 mm C 404 mm D 809 mm A uniform beam of length 100 cm is hinged at one end. It is kept horizontal by applying a torce of 12 N as shown 80 cm cm 100 cm c 14.4 N hinge uniform beam D 19.2 N 12N What is the weight !V of the beam? A 7.2N B 9.6N 14 A man walks along a tightrope, carrying a long pole. long pole He carries the long pole to A make it easier for him to keep his centre of gravity above the tightrope. B raise his centre of gravity and make him more stable. C reduce the pressure he exerts on the tightrope. D spread out his weight. PartnerlnLeaming 107

BP- 108 7 15 16 17 18 A braking force F is applied on a car moving at a constant speed of 10 m/s. The car travelled a distance of l0 m before coming to rest. The car now travels at a constant speed of 30 m/s and the same braking force F is applied. What is the distance travelled by the car before coming to rest? A '17 m B 30m C 52m D 90m A ryclist, of weight 800 N, takes '10 s to cycle 200 m at a constant speed along a road. The road rises verticafly 1 .0 m for every 50 m measured along the road. .l 200 m Given that work done against friction by the cyclist is negligible, what is the average power produced by the cyclist? A 32W B 160W c 320w D 1600W When a thermometer is calibrated, the fixed points are marked. What are fixed points? A all the marks on the temperature scale which cannot be removed B all the marks of the temperature scale C the lowest and highest temperatures shown on the thermometer D two temperatures of known value which are easily reproduced Air is trapped in a cylinder by a piston. The pressure of the air is P and the length of the column of air is 10 cm. The piston is moved outwards, and the length of the air mlumn increases by 20 cm. The temperature of the air remains constant. 10 20 cm trapped air A P 2 P ?B PartnerlnLeaming 108 c2P D3P What is the new air pressure?

BP- 1 09 I 19 A substance can exist in three different states: solid, Iiquid or gas Each of the two statements below describe a change in state. change 1 Molecules move closer together but continue to travel throughout the substance. change 2 Molecules stop travelling throughoutthe substance andjustvibrate aboutfixed positions Which changes of state do these statements describe? change 2 A B c D condensation condensation solidification solidification melting solidification condensation melting 20 Solar panels are used to heat water with a mass of 5000 kg. The total area of the solar panels is 10 m2 and the average power output from each square metre of the panels is 300 W. The specific heat capacity of water is 4200 J/(kg "C). Assuming that there is no thermal energy loss, what is the increase in the water temperature after 8-0 hours? a 41 'C B 5.1 'C c 4.1 "C D 0.69 "C 21 On a hot day, the drink in a bottle can be kept cool by standing the bottle in a bowl of water and placing a wet cloth over it. wet cloth drink in bottle water The drink is kept cool because A water evaporating from the wet cloth cools the drink in the bottle. B the cloth prevents absorption of thermal energy from the suroundings C the