2024 JVS Physics Prelim P1

1 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over JURONGVILLE SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 Secondary 4 Express STUDENT NAME CLASS INDEX NUMBER PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet 6091/01 13 August 2024 1 hour READ THESE INSTRUCTIONS FIRST Do not open this booklet until you are told to do so. Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, index number and class in the spaces at the top of this page. There are forty questions on this paper. Answer ALL questions. For each question, there are four possible answers, A, B, C or D. Choose the one you consider correct and record your choice in soft pencil on separate Answer Sheet. Read the instructions 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. The use of an approved scientific calculator is expected, where appropriate. Take acceleration due to gravity on Earth, g, to be 10 m/s2 unless stated otherwise. Setter: Mr Lam Seng Tat This document consists of 16 printed pages. For Examiner’s Use 40 O

2 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over 1 Which is the unit for specific heat capacity in base units? A kg m / s2 K B m2 / s2 kg K C m / s2 K D m2 / s2 K 2 Which row shows the correct order of magnitude for diameter of a typical atom and diameter of Earth? 3 The diagram shows the velocity-time graph of an object. Which statement is incorrect? A The average speed of the object is 10.6 m/s. B The displacement of the object is -45 m. C The object decelerated at 2.5 m/s 2 to rest. D The total distance travelled by the object is 250 m. diameter of typical atom diameter of Earth A 0.01 nm 1 Mm B 1 nm 1000 Mm C 0.001 µm 0.1 Gm D 0.000 1 µm 0.01 Gm time / s m / s -5 -10 15 2 4 6 8 10 12 14 16 18 20 22 24 velocity 0 5 10 -15

3 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over 4 The motion of an object is represented by the displacement-time and velocity-time graph. Which statement describes the motion of the object? A The object is moving from decreasing acceleration to constant acceleration. B The object is moving from decreasing acceleration to constant velocity. C The object is moving from increased acceleration to constant acceleration. D The object is moving from increased acceleration to constant velocity. 5 The diagram shows the spacecraft OSIRIS-REx. It collected rock samples from the asteroid Bennu and returned the samples to Earth for analysis. Bennu has a surface gravity of 6.27 x 10 -6 times that of Earth. A mass of 121.6 g sample of rocks was returned to Earth. What is the weight of the sample taken from Bennu given that the gravitational field strength on Earth is 9.81 N/kg? weight of sample on Bennu / N weight of sample on Earth / N A 7.48 x 10-6 1.19 B 7.48 x 10-3 1190 C 7.62 x 10-7 1.19 D 7.62 x 10-4 1190 NAS Spacecraft OSIRIS-REx time / s displacement / m time / s velocity / ms-1 NAS Asteroid Bennu

4 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over 6 The diagram shows a mass hanging freely from a string suspended inside a car. What would happen to the mass hung by a string in the car if the car was moving forward towards the right at constant speed and at constant acceleration? 7 Two objects of the same size and shape, but one with greater mass, were dropped from rest in air. Why does the object with the greater mass have higher terminal velocity? A The object with the greater mass would take a longer time to reach terminal velocity since less air resistance is required to balance the heavier weight. B The object with the greater mass would take a longer time to reach terminal velocity since more air resistance is required to balance the heavier weight. C The object with the greater mass would take a shorter time to reach terminal velocity since less air resistance is required to balance the heavier weight. D The object with the greater mass would take a shorter time to reach terminal velocity since more air resistance is required to balance the heavier weight. 8 The diagram shows a 30 cm long uniform steel bar pivot at its left end . The steel bar can rotate about freely about the pivot. Four pulling forces (A, B, C and D) are applied to rotate the steel bar about the pivot. Which force will rotate the bar with the least amount of force? car moving forward at constant speed car moving forward at constant acceleration A mass remain vertical mass swing to left side of the vertical B mass remain vertical mass swing to right side of the vertical C mass swing to left side of the vertical mass swing to left side of the vertical D mass swing to right side of the vertical mass swing to right side of the vertical 14 cm 28 cm pivot A horizontal road mass hung by a string B C D 30° 30° 45°

5 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over 9 The diagram shows four positions of an object shape of letter ’P’. Which position would object be the most stable? 10 A bottle contains 500 cm3 of a liquid. The density of the liquid is 1500 kg/m3. What is the mass of the liquid? A 300 g B 750 g C 3 kg D 750 kg 11 A hydraulic jack is used to lift a load of 2000 N by applying a force F to piston P. The cross-sectional area of piston P is 300 cm 2. Which row shows the correct applied force F and cross-sectional area of piston Q? applied force F / N cross-sectional area of piston Q / cm2 A 300 1200 B 300 1500 C 500 1200 D 500 1500 A B C D load piston Q piston P hydraulic fluid F

6 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over 12 The diagram shows a barometer. A scientist used it to measure the atmospheric pressure as he climbed a tall mountain. Which statement is correct? A The mercury column height h decreases as atmospheric pressure decreases at higher height of the mountain. B The mercury column height h decreases as atmospheric pressure increases at higher height of the mountain. C The mercury column height h increases as atmospheric pressure decreases at higher height of the mountain. D The mercury column height h increases as atmospheric pressure increases at higher height of the mountain. 13 A car is travelling at a constant speed of 90 km/h with a forward force of 4000 N. What is the work done by the forward force for each kilometre travelled? A 100 kJ B 360 kJ C 800 kJ D 4000 kJ 14 A 70 kg man walks at a speed of 2 m/s. He then started running at 5 m/s. What is his increase in kinetic energy? A 105 J B 315 J C 735 J D 1015 J h vacuum

7 JVSS Prelim 2024 4Exp Physics 6091/01 [Turn over 15 A gas in a fixed volume container is heated. Which statement explaining why pressure of the gas increases is incorrect? A Pressure of the gas increases as the force acting on the container walls increases. B Pressure of the gas increases