2025 S4 EOY P1 2025 S4 EOY P1 2025 S4 EOY P1 1 / 30 A copper wire is of uniform diameter 0.42 mm and several metres long. Which instruments should be used to take measurements to calculate accurately the volume of copper in the wire? digital micrometer screw gauge and ruler digital calipers and ruler digital micrometer screw gauge and measuring tape digital calipers and measuring tape 2 / 30 2025 S4 EOY P1 Q02 An athlete runs around a bend on the track at constant speed. Which row describes the velocity and the acceleration of the athlete? A D B C 3 / 30 2025 S4 EOY P1 Q03 A car accelerates from rest with uniform acceleration of 6.0 m s−2 for 10 seconds. It then maintains the same velocity for another 10 seconds. What is the total displacement of the car? 300 m 1200 m 900 m 600 m 4 / 30 2025 S4 EOY P1 Q04 A box of mass 10 kg is pulled along a horizontal floor in a straight line by a constant force F. The constant frictional force acting on the box is 4.0 N. The speed of the box increases from 1.0 m s−1 to 2.5 m s−1 in 3.0 s. 7.0 N 9.0 N 1.0 N 5.0 N 5 / 30 2025 S4 EOY P1 Q05 A copper ball and a styrofoam ball of the same size and shape are dropped from rest in air. Comparing the two objects, the styrofoam ball has the same initial acceleration and the lower terminal velocity. the same initial acceleration and the same terminal velocity. the lower initial acceleration and the same terminal velocity. the lower initial acceleration and the lower terminal velocity. 6 / 30 2025 S4 EOY P1 Q06 Four identical containers are placed on the table. Two of the containers are partly filled with sand. Which is the most stable? C B D A 7 / 30 2025 S4 EOY P1 Q07 A manometer containing water is used to measure the pressure of a gas supply as shown in the diagram. The density of water is 1000 kg m−3. Atmospheric pressure is 1.0 × 105 Pa. What is the pressure of the gas supply? 101 kPa 95 kPa 96 kPa 104 kPa 8 / 30 2025 S4 EOY P1 Q08 The diagram shows a hydraulic press. The cross-sectional area of piston K is 5.0 cm2 and the cross-sectional area of piston L is 40 cm². A force of 80 N is applied by the oil on piston L. What is the force applied to piston K? 80 N 10 N 320 N 640 N 9 / 30 2025 S4 EOY P1 Q09 A mirror is positioned in the path of a light ray. What is the angle of reflection of the light ray? 90º 70º 35º 110º 10 / 30 2025 S4 EOY P1 Q10 A ray of light travels from glass of refractive index 1.5 into a transparent material. The angle of incidence in glass is 45°, and the angle of refraction in the material is 60°. The speed of light in vacuum is 3.0 × 108 m s-1. What is the speed of light in the transparent material? 3.7 × 10<sup>8</sup> m s<sup>–1</sup> 2.3 × 10<sup>8</sup> m s<sup>–1</sup> 2.4 × 10<sup>8</sup> m s<sup>–1</sup> 1.2 × 10<sup>8</sup> m s<sup>–1</sup> 11 / 30 2025 S4 EOY P1 Q11 A light ray enters one side of a rectangular glass block. Its path through the block and out the other side is shown. Which of these paths is possible? D B C A 12 / 30 2025 S4 EOY P1 Q12 The diagram shows an experiment to measure the focal length of a lens. The light rays will reflect off the plane mirror and travel back into the lens to form an image on the card. Which distance is the focal length of the lens? y x x+y x/y 13 / 30 2025 S4 EOY P1 Q13 Which row shows the correct part of the electromagnetic spectrum that is being used for the various applications? A D C B 14 / 30 2025 S4 EOY P1 Q14 A student hears an echo when she speaks loudly near a wall. What happens to the echo if she moves closer to the wall? It is louder and takes less time to reach her. It has a higher pitch and takes less time to reach her. It is louder and takes a longer time to reach her. It has a higher pitch and takes a longer time to reach her. 15 / 30 2025 S4 EOY P1 Q15 A sound wave is moving through the air. The diagram shows the positions of air particles at a specific moment. Which distance represents the wavelength of the sound wave? A B D C 16 / 30 2025 S4 EOY P1 Q16 In the Brownian motion experiment, bright spots of light are observed to move around. Which statement best explains the observation? The bright spots of light are due to the reflection from air molecules and smoke particles which are in constant and random motion. The bright spots of light are due to the reflection from smoke particles molecules which are bombarded by air molecules which cannot be seen. The bright spots of light are due to the reflection from smoke particles which are moving randomly on their own. The bright spots of light are due to the reflection from air molecules which are in constant and random motion. 17 / 30 2025 S4 EOY P1 Q17 The diagram shows a set of apparatus used to determine the specific heat capacity of an unknown liquid. Which of the following increases the rate of change of the reading on the thermometer? less liquid in the container heater with a lower power rating moving the thermometer close to the heater polishing the outer surface of the container 18 / 30 2025 S4 EOY P1 Q18 A student pours a hot liquid into a container. The graph shows the temperature of the hot liquid as it rests at room temperature. What is occurring at region X? boiling and evaporation condensation only solidification only evaporation and solidification 19 / 30 2025 S4 EOY P1 Q19 A cabinet is placed in front of a heater. Air can move through a gap under the cabinet. Region H is above the heater. Which row describes the direction of motion and the temperature of the air in the gap? A C D B 20 / 30 2025 S4 EOY P1 Q20 Three uncharged identical conducting spheres K, L and M are arranged so that they touch each other. A positively charged sphere P is then brought close to sphere K as shown. What are the types of charges induced on the spheres K, L and M? C B A D 21 / 30 2025 S4 EOY P1 Q21 The diagram shows three point-charges of equal magnitude, placed at three corners of a square. A negative charge N is placed at the fourth corner. What is the direction of the resultant force acting on the negative charge? C A D B 22 / 30 2025 S4 EOY P1 Q22 P and Q are two physical quantities with the same unit R. P is the energy dissipated by a battery in driving unit charge round the complete circuit. Q is the work done in a component when a unit charge is driven through it. What are P, Q and R? A C D B 23 / 30 2025 S4 EOY P1 Q23 A battery is connected to four resistors and a voltmeter as shown. The reading on the voltmeter is zero. What is the resistance of resistor R? 20 Ω 36 Ω 60 Ω 0 Ω 24 / 30 2025 S4 EOY P1 Q24 Lamp R and Lamp S are both rated 10 W, 240 V. Lamp R is more efficient than Lamp S. Which statement correctly compares Lamp R with Lamp S? Lamp R produces less light energy. Lamp R has a lower electrical resistance. Lamp R produces less thermal energy. Lamp R is more expensive to run. 25 / 30 2025 S4 EOY P1 Q25 The 3-pin plug of an electric heater contains a 7.0 A fuse. The metal case of the electric heater is earthed. There is a current of 5.0 A flowing when the heater is operating under normal conditions. What happens when the cable to the heater becomes so worn that the live wire makes electrical contact with the case? The fuse melts and disconnects the circuit. The metal case becomes very hot. The metal case becomes low potential and is safe to touch. The current flows to earth and the fuse is not affected. 26 / 30 2025 S4 EOY P1 Q26 The diagram shows the magnetic field of a bar magnet. How does the strength of the magnetic field vary along the path XYZ? It is weak at X and increases in strength along the path XYZ. It is strong at X and decreases in strength along the path XYZ. It is strong at X, decreases as it approaches Y and then increases towards Z. It is constant along the path XYZ. 27 / 30 2025 S4 EOY P1 Q27 X and Y are wires carrying electric currents either into or out of the page. P, Q and R are plotting compasses. Q is placed at the midpoint between X and Y. Ignore any effects of the Earth’s magnetic field. Which row about the directions and sizes of the currents in X and Y is correct? D C B A 28 / 30 2025 S4 EOY P1 Q28 A student moves a wire in a magnetic field. As the wire is moved, a current flows in the direction as shown in the diagram. In which direction did the student move the wire? to the right of the page/screen towards the bottom of the page/screen to the left of the page/screen towards the top of the page/screen 29 / 30 2025 S4 EOY P1 Q29 A student pushes the N-pole of a bar magnet into end P of a solenoid and observes a deflection on the galvanometer. What produces a deflection in the same direction? pushing the N-pole into end Q pushing the S-pole into end P pulling the S-pole away from end Q pulling the S-pole away from end P 30 / 30 2025 S4 EOY P1 Q30 A nucleus consists of 84 protons and 134 neutrons. After emitting one alpha-particle followed by two beta particles, this nucleus has 80 protons and 132 neutrons 84 protons and 130 neutrons 84 protons and 132 neutrons 80 protons and 130 neutrons Your score is