2024 NASS P1 P2 QP + MS

NAS/2024/PRELIM/4E/Physics (6091/1) Name: ............................................................................ Register no: .............. Class: ............... NGEE ANN SECONDARY SCHOOL O SECONDARY 4 PRELIMINARY EXAMINATION PHYSICS 6091/01 PAPER 1 27 August 2024 1 hour Additional Materials: Optical Answer Sheet (OAS) Instructions to Candidates READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, class and index number at the top of this cover page. There are thirty 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 separate Optical Answer Sheet (OAS). 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. Where necessary, take the gravitational field strength, g, to be 10 N/kg. Checked by student: _____________________ Date: _________ This document consists of 18 printed pages and 0 blank page.

NAS/2024/PRELIM/4E/Physics (6091/1) Paper 1 (Multiple Choice Questions) 1 Which pair of units measure the same quantity? A km/h and kg/m3 B N/m3 and Pa C V and J/C D W and J 2 Which of the following gives a pair of vector quantities? A mass, acceleration B moment, displacement C temperature, force D power, energy 3 Which graph shows correctly the motion of a feather falling from a height? A B C D speed time speed time distance time 0 time 0 distance

3 NAS/2024/PRELIM/4E/Physics (6091/1) 4 A student stands near the edge of a cliff. He throws the ball upwards. What is the acceleration of the ball as the ball moves upwards and at the highest point of its motion? as the ball moves upwards at the highest point of motion A 10 m/s2 downwards 0 B 10 m/s2 upwards 0 C 10 m/s2 downwards 10 m/s2 upwards D 10 m/s2 downwards 10 m/s2 downwards 5 The front wheel of a car is turned in a clockwise direction by the engine as the car moves towards the right. There is a force of friction between the wheel and the road. What are the directions of the frictional forces on the wheel of the car and on the road? frictional force on wheel frictional force on road A to the left to the left B to the left to the right C to the right to the left D to the right to the right path of ball highest point of the motion road left right wheel

4 NAS/2024/PRELIM/4E/Physics (6091/1) 6 A rocket of mass 1000 kg is descending downwards upon the surface of the Moon where the gravitational field strength is 1.67 N/kg. If the acceleration of the rocket is − 5.0 m/s2, what is the upward force exerted by the rocket engine? A 2500 N B 6670 N C 7500 N D 10 000 N 7 A thin-walled bottle of mass 20 g and volume 100 cm3 is to be filled with sand. What is the maximum mass of sand which may be added into the bottle so that it can float freely in seawater which has a density of 1.1 g/cm3 ? A 20 g B 30 g C 90 g D 110 g 8 The diagram shows four objects P, Q, R and S placed on a sloping surface. The centre of gravity of each object is marked M. Which of these objects will topple when placed on the slope? A P, Q and R B Q, R and S C Q and R D Q and S Q R S P Q R S

5 NAS/2024/PRELIM/4E/Physics (6091/1) 9 A uniform plank of length 1.0 m is supported by two spring balances J and K. The readings of J and K are both 150 N. When J is moved 0.25 m towards K, what are the new readings shown on J and K? Reading on J Reading on K A 200 N 100 N B 200 N 150 N C 150 N 200 N D 100 N 200 N 10 A barometer is incorrectly set up such that some air is trapped above the mercury column. Given that the atmospheric pressure is equivalent to 760 mmHg, and the density of mercury is 13560 kg/m3, what is the pressure of the trapped air? A 14 kPa C 58 kPa B 45 kPa D 103 kPa uniform plank 1.0 m 430 mm trapped air

6 NAS/2024/PRELIM/4E/Physics (6091/1) 11 The diagram shows a manometer used to measure the pressure of gas. The tube P contains water and the tube Q contains glycerol. The liquid levels in the tubes were originally at X. The liquid level s in both tubes changed when the gas tap was turned on. HQ and HP are the height differences in tubes Q and P respectively. What of the following explains why the height difference H Q is less than HP? A There is more air flowing into tube P than tube Q. B The liquid in Q is denser than water. C Pressure of gas exerted in P is greater than the pressure of gas exerted in Q. D There is more liquid in tube Q than water in tube P. 12 A box, O, can be lifted from level A to a higher level B along one of the three paths as shown in the diagram. Which statement about the amount of work done in the vertical direction is correct? A It is the greatest along path P. B It is the greatest along path Q. C It is the greatest along path R. D It is the same along all the three paths. Level X Hp HQ glycerol water level B level A P Q to gas tap Q R P O R

7 NAS/2024/PRELIM/4E/Physics (6091/1) 13 A force is applied to a marble. The marble rolls along a frictionless path, starting from P. Which of the following statements is/are correct? I The marble has maximum energy in the kinetic store at S. II Energy is transferred mechanically through work done to the marble. III The marble will roll up to a maximum height at T and return back to P. A III only B II only C I and II only D I, II and III 14 A girl pulls a 40 kg block up a smooth 30° inclined plane. The inclined plane is 10 m long and the block is pulled from the bottom of the inclined plane to the top in 40 s. Take g to be 10 N/kg. What is the average useful power output of the girl? A 5 W B 10 W C 50 W D 100 W 15 A hydraulic press consists of two circular pistons X and Y. A block of mass 64 kg is placed on Piston Y. The radius of Piston X is 1.0 cm and that of Piston Y is 4.0 cm. What is the upward force required to raise the block? A 5.0 N B 32 N C 40 N D 50 N 10 m 30˚ 40 kg force Piston X radius = 1.0 cm Piston Y radius = 4.0 cm 64 kg force 5 m

8 NAS/2024/PRELIM/4E/Physics (6091/1) 16 In a Brownian motion experiment involving smoke particles in air, heavy particles settle quickly but very small particles remain suspended for long periods of time. Which statement explains why the very small smoke particles do not settle? A Air pressure has a greater effect on very small smoke particles. B The Earth’s gravitational field does not act on very small smoke particles. C Molecular bombardment by air molecules keeps the very small smoke particles suspended. D The small smoke particles have the same density as the air. 17 Which of the following statement(s) is/are true for an object being heated? I Its temperature always increases. II Energy in the internal store always increases. III Energy in the internal and potential stores cannot increase at the same time. A II only B I and II only C II and III only D All of the above 18 A heating element is to be placed in a narrow sealed tube of liquid. Which would be the