Sec 4 Science Physics SA2 2018 Pasir Ris

Name Class Register Number SECONDARY 4 EXPRESS / 5 NORMAL ACADEMIC PRELIMINARY EXAMINATION 2018 SCIENCE (PHYSICS, CHEMISTRY) PAPER 1 Multiple Choice Wednesday 0800 – 0900 5076/01 12 September 2018 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid or tape. Write your name, class and register number on the Answer Sheet in the spaces provided and at the top of this pa ge. There are forty questions in this section. Answer all questions. For each quest ion 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 inst ructions 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. A copy of the Data Sheet is printed on page 18. A copy of the Periodic Table is printed on page 19. The use of an approved scientific calculator is expected, where appropriate. This document consists of 19 printed pages including the cover page. [Turn over Pasir Ris Secondary School www.KiasuExamPaper.com 223

PRSS_2018_S4E5N_PRELIM_SCI_5076_P12 1 The diagram shows a vernier scale. What is the reading on the vernier scale? A 6.50 cm B 6.55 cm C 7.00 cm D 7.05 cm 2 A moon rover of mass 15 kg on the Earth is taken to the Moon to c ollect data. The gravitational field strength on the Earth is 10 N/kg and on the Moon is 1.6 N/kg. What are the mass and weight of the moon rover on the Moon? mass / kg weight / N A 15 24 B 15 150 C 24 15 D 24 150 3 Three objects are cut from the same sheet of metal. They are di fferent in shapes but they all have the same mass. Which object has the greatest density? A the hexagon B the trapezoid C the triangle D all have the same density trapezoid trianglehexagon www.KiasuExamPaper.com 224

PRSS_2018_S4E5N_PRELIM_SCI_5076_P13 4 A measuring cylinder has a mass of 120 g when empty. When 50 cm 3 of liquid is added, the total mass of the liquid and the measuring cylinder is 160 g. What is the density of the liquid? A 0.80 g/cm3 B 1.25 g/cm3 C 2.40 g/cm3 D 3.20 g/cm3 5 A hydraulic system is used to lift a load of 80 N. When piston X is pushed down, pressure is applied on the liquid. The same pre ssure is applied throughout the entire liquid. What is the minimum downward force that needs to be applied at piston X to lift the 80 N load on piston Y? A 1 N B 4 N C 80 N D 1600 N 6 Visible light and radio waves are different types of waves. How m ay these waves be correctly described? visible light radio waves A longitudinal longitudinal B longitudinal transverse C transverse longitudinal D transverse transverse 7 Which electromagnetic wave travels at the highest speed through a vacuum? A gamma rays B microwaves C ultraviolet rays D All electromagnetic waves travel at the same speed through a vacuum. force on piston X liquid piston Y area 40 cm2 piston X area 2 cm2 80 N www.KiasuExamPaper.com 225

PRSS_2018_S4E5N_PRELIM_SCI_5076_P14 8 Four objects, P, Q, R and S are arranged in a line and in contact with each other as shown. The arrows show the directions in which thermal energy travels between the objects. P Q R S Which statement about the temperatures of the objects is correct? A P is colder than Q and R. B Q is hotter than R but colder than P. C R is the hottest object. D S and R have the same temperature. 9 A solid is heated from room temperature. The graph shows how it s temperature changes with time as it is heated constantly. Which section of the graph will the substance be in the liquid state? A PQ B QR C RS D ST temperature room temperature time P Q R S T 0 0 www.KiasuExamPaper.com 226

PRSS_2018_S4E5N_PRELIM_SCI_5076_P15 10 Megan draws three rays of light from point P through a converging lens. Each point labelled F is the principal focus of the lens. Which of the rays are drawn correctly? A ray Y only B ray Z only C rays X and Y D rays X and Z 11 The diagram shows a buoy floating in water with a weight attach ed so that the buoy floats upright. Transverse waves travel across the water from P to Q. Which diagram shows the movement of the buoy as the wave passes? A B C DA buoy water surfaceP Q weight P ray X ray Yray Z F F www.KiasuExamPaper.com 227

PRSS_2018_S4E5N_PRELIM_SCI_5076_P16 12 The diagrams represent the waves produced by four sources of sound. The scales are the same for all the diagrams. Which sound has the highest frequency? A B C D time time time time www.KiasuExamPaper.com 228

PRSS_2018_S4E5N_PRELIM_SCI_5076_P17 13 Two astronauts are assigned to conduct repair works on a damage d satellite in space. Astronaut 1 uses a hammer to knock out a dent on the satellite. Astronaut 2 is nearby. Compared with the sound heard if they are working on the Earth, what does astronaut 2 hear? A a quieter sound B a louder sound C a sound of the same loudness D no sound at all 14 Two very light, charged balls P and Q are hung, one above the other, from nylon threads. When a negatively charged plastic sheet is placed alongside them, P is repelled and Q is attracted. What are the original charges on P and Q? charge on P charge on Q A negative negative B negative positive C positive negative D positive positive astronaut 1 astronaut 2 hammer www.KiasuExamPaper.com 229

PRSS_2018_S4E5N_PRELIM_SCI_5076_P18 15 The diagram shows the electric field pattern between two isolated point charges. Which two point charges produce this pattern? 16 The reading of the ammeter in the circuit is 1.0 A. When a seco nd ammeter is connected to the circuit, it also reads 1.0 A. At which point, A, B, C or D is the second ammeter connected? A B C D + - - - - + + + B C D A1.0 A www.KiasuExamPaper.com 230

PRSS_2018_S4E5N_PRELIM_SCI_5076_P19 17 Four students, A, B, C and D, are asked to draw a circuit showing three lamps connected in parallel. The circuit also requires a switch that controls all three lamps. Which student has drawn the circuit correctly? 18 One end of a rod picks up the N-pole of a bar magnet when in po sition 1. The same end of the rod is then brought to position 2. The rod picks up the S- pole of the bar magnet when in position 2. Which material is the rod made from and what is the pole at end P of the rod when in position 2? material pole at P A iron N-p o l e B iron S-p o l e C steel N-p o l e D steel S-p o l e A B C D position 1 position 2 rod rod magnet magnet bench P N N S S … … … … …… … … … … … … www.KiasuExamPaper.com 231

PRSS_2018_S4E5N_PRELIM_SCI_5076_P110 19 A current-carrying wire passes between the poles of a horse-sho e magnet causing a force to act on the wire. Three other arrangements, P, Q and R, of the wire and magnet are set up as shown. Which arrangement(s) will produce a force in the same direction as the original arrangement? A P only B R only C P and Q only D P, Q and R 20 The diagram shows a beam of electrons entering a magnetic field. What is the effect of the magnetic field on the beam of electrons? A They are deflected into the plane of the diagram. B They are deflected out of the plane of the diagram. C They are deflected towards the bottom of the diagram. D They are deflected towards the top of the diagram. P Q R XXXXX X XXX X X XXX X X XXX X magnetic field going into the plane of the diagram beam of electrons wire current magnet magnet turned around current direction reversed current direction reversed and magnet turned around www.KiasuExamPaper.com 232