HGV 2026 Physics P2 QP

HILLGROVE SECONDARY SCHOOL PRELIMINARY EXAMINATION 2026 SECONDARY 4 G3 (EXPRESS) CANDIDATE NAME ( ) CLASS - CENTRE NUMBER S INDEX NUMBER PHYSICS Paper 2 Structured and Free Response Candidates answer on the Question Paper. No Additional Materials are required. 6091/02 26 August 2026 1 hour 45 minutes 11.20 AM to 1.05 PM READ THESE INSTRUCTIONS FIRST Write your class, index number and name on all the work you hand in. You may use an HB pencil for any diagrams or graphs. Write in dark blue or black pen. Do not use staples, paper clips, glue or correction fluid. Section A Answer all questions. Write your answers in the spaces provided. Section B Answer one question. Write your answers in the spaces provided. Candidates are reminded that all quantitative answers should include appropriate units. The use of an approved scientific calculator is expected where appropriate. Candidates are advised to show all their working in a clear and orderly manner, as more marks are awarded for sound use of Physics than for correct answers. The number of marks is given in brackets [ ] at the end of each question or part question. Parent’s/ Guardian’s Signature: ___________________ Setter: Mdm Chia Yee Ping This document consists of 24 printed pages. For Examiners’ Use Section A / 70 Section B / 10 Total / 80

2 2026 HGV Prelim Exam 4G3 Physics Paper 2 Section A Answer all the questions in this section. 1 Fig. 1.1 shows the velocity-time graph of an object released from a height as it falls to the ground. Fig. 1.1 (a) Describe the motion of the object from A to B: …………………………………………………………….…………….......………… B to C: ….……………………………………………………………………………………[2] (b) Explain how Fig. 1.1 shows that the distance travelled by the object from A to B is greater than 130 m. .…………………………………………………………………………….…………….......… .…………………………………………………………………………….…………….......… ……………………………………………………………………………………………… [2] [Total: 4] velocity m/s 0 A B C

3 2026 HGV Prelim Exam 4 G3 Physics Paper 2 2 Fig. 2.1 shows a rocket about to be launched. Fig. 2.1 The total mass of the rocket when it is fully loaded is 62.8 10 kg. The motor of the rocket provides a constant force. The vertical acceleration of the rocket immediately after lift-off is 1.4 m/s2. The gravitational field strength of Earth is 10 N/kg. (a) On Fig. 2.1, draw arrows to represent all the forces acting on the rocket just as it lifts off. Label the forces. [2] (b) Calculate the weight of the rocket when it is fully loaded. weight = ………………………….. [1]

4 2026 HGV Prelim Exam 4 G3 Physics Paper 2 (c) Calculate the constant force provided by the motor of the rocket just as it lifts off. constant force = ………………………….. [2] (d) During lift-off, the downward force exerted by the rocket on the exhaust gases is one- half of an action-reaction pair of forces. Describe the other half of this action-reaction pair. .…………………………………………………………………………….…………….......… ……………………………………………………………………………………………… [1] (e) As the rocket rises, the motor continues to provide the constant force by burning its fuel. Suggest and explain why the acceleration of the rocket increases as it rises further above the Earth's surface. .…………………………………………………………………………….…………….......… .…………………………………………………………………………….…………….......… .…………………………………………………………………………….…………….......… ……………………………………………………………………………………………… [2] [Total: 8]

5 2026 HGV Prelim Exam 4 G3 Physics Paper 2 3 In a factory, an electric motor is used to lift some boxes shown in Fig. 3.1. Fig. 3.1 The boxes are placed in a cage and the motor winds a cable around a cylinder to lift the cage and boxes. The total mass of the boxes and cage is 47 kg and they are lifted vertically through 13 m to a storage area. Take the gravitational field strength to be 10 N/kg. (a) Calculate the useful work done in lifting the boxes and cage to the storage area. useful work done = ........................................ [2] (b) The electromotive force (e.m.f.) of the power supply for the motor is 230 V. The current in the motor is 5.6 A. It takes 11 s for the motor to lift the cage and boxes to the storage area. (i) Calculate the total energy transferred electrically to the motor in 11 s. total energy = ........................................ [2] cage cable

6 2026 HGV Prelim Exam 4 G3 Physics Paper 2 (ii) The energy transferred to the motor during the lifting process is not fully converted to useful work. State one reason why this is so. …...…………………………………………………………………………………………. …...……………………………………………………………………..……………… [1] (c) When the boxes are lifted to their storage area, the cable accidentally snapped and the boxes and cage fall to the ground. About 15% of their initial energy is lost before they hit the ground. Calculate the speed of the falling boxes and cage just before they hit the ground. speed = ........................................ [3] [Total: 8]

7 2026 HGV Prelim Exam 4 G3 Physics Paper 2 4 A uniform rod AB of length 3.0 m has a weight of 10 N. It is suspended by two identical strings at points X and Y as shown in Fig. 4.1. T1 and T2 are the tensions in the strings. Fig. 4.1 A load of 40 N is placed on the rod at a distance of 1.6 m from X. The beam is in equilibrium. (a) State the principle of moments for an object in equilibrium. …..……………………………………………….……………………………………………... …...……………………………………………………………………………………………... …...……………………………………………………………………..…………………… [1] (b) On Fig. 4.1, draw an arrow to represent the weight of the rod and label it W. Indicate clearly its distance from point A. [1] (c) By taking moments about an appropriate point, calculate T2. T2 = ......................................... [2] (d) The load of 40 N is shifted to the left of the rod, nearer to A. State and explain any change in T2. …..……………………………………………….……………………………………………... …...……………………………………………………………………………………………... …...……………………………………………………………………………………………... …...……………………………………………………………………..…………………… [2] [Total: 6] T1 X Y A B T2 2.3 m 1.6 m 0.5 m 0.2 m 40 N

8 2026 HGV Prelim Exam 4 G3 Physics Paper 2 5 Fig. 5.1 shows a long vertical glass tube with one end immersed in mercury and the other connected to a vacuum pump at A. The tube fits tightly into a bell jar. With an opening at B and all air in the glass tube pumped out via A, the mercury rises to a maximum heig ht of 76 cm above the dish. Fig. 5.1 (a) Explain why the mercury can only reach a maximum height of 76 cm. …...……………………………………………………………………………………………... …...……………………………………………………………………………………………... …...……………………………………………………………………..…………………… [1] (b) The density of mercury is 13600 kg/m3. Calculate the pressure at Y. pressure = ........................................ [2] 76 cm

9 2026 HGV Prelim Exam 4 G3 Physics Paper 2 (c) A container of air initially at atmospheric pressure is connected to B and heated over a flame as shown in Fig. 5.2. Fig. 5.2 (i) State what happens to the height of the mercury column. …………………………………………………………………………………………. .……………………………………………………………………..……………… [1] (ii) Using the kinetic model of matter, explain your answer in (c)(i). .………………………………………………………………………………………… ………………………………………………………………………………………….