MFSS 2022 3EX EOY Pure Physics(Full Paper with ANS updated)-output

[Turn over Name Reg. No Class MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL MAYFLOWER SECONDARY SCHOOL 3EX PHYSICS 6091/01 Paper 1 Multiple Choice [25 Marks] END OF YEAR EXAMINATION Additional Materials: OTAS October 2022 2 hour 15 minutes (with Paper 2) Instructions to Candidates Do not start reading the questions 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, class, and index number on the OTAS provided. DO NOT WRITE IN ANY BARCODES. Information for Candidates There are twenty-five 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 OTAS. Read the instructions on the OTAS 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. Unless otherwise stated, take the gravitational field strength on earth g to be 10.0 N/kg. This question paper consists of 11 printed pages. Setter: Mr Johnson Tay Vetter: Ms Mok Pei Jiun

2 Section A Answer all the questions in the OTAS provided. 1 A student writes down a few physical quantities he learnt in Physics. weight mass force distance time moment pressure How many scalar quantities are listed? A 3 B 4 C 5 D 6 2 To obtain density of a given iron nugget, we need to measure its mass and volume. Which pair of instruments can be used? A measuring cylinder and beam balance B measuring cylinder and vernier calipers C stopwatch and beam balance D stopwatch and vernier callipers 3 An engineer used a micrometer screw gauge to measure the diameter of a wire. The reading is shown below. What is the radius of the wire? A 3.82 mm B 5.14 mm C 7.64 mm D 15.28 mm 4 The motion of an object is represented by the speed-time graph as shown below. Which statement is false? A The average speed of the object was 5.0 m/s. B The deceleration of the object for the first 5 s of its motion was 2.0 m/s2. C The object was at rest twice. D The total distance travelled was 60 m. time / s 10 0 speed / m/s 10 5 12

3 [Turn over 5 The diagram shows a block made of two parts of different densities, 6.0 g/cm 3 and 9.0 g/cm3 respectively. What is the overall density of the block? A 7.0 g/cm3 B 7.5 g/cm3 C 8.0 g/cm3 D 15.0 g/cm3 6 The gravitational field strength on the Moon and Mars are 1.6 N/kg and 3.6 N/kg respectively. Which graph correctly shows the relationship between the weight and mass of a body on the Moon and Mars? A B C D Mass Weight Moon Mars Mass Weight Moon Mars Mass Weight Moon Mars Mass Weight Moon Mars

4 7 The diagram shows different positions of a tennis ball as it was hit over the net. At which positions does the tennis ball experience acceleration? A P and Q only B P and R only C P, Q and R D Q and R only 8 The diagram shows a ball being pushed up a step. A student would like to apply a minimum force to push the ball up the step. Which force is the minimum force that can be applied to push the ball up the step? 9 The diagram below shows a bottle containing air, water and sand. More sand is added to the bottle. This affects the centre of gravity of the bottle and its contents. How might the centre of gravity be changed? A from X towards Y B from Y towards X C from Z towards Y D from Y towards Z C D A B ball step

5 [Turn over 10 Three identical hollow pipes X, Y and Z have one or two identical weights attached to their inner surfaces as shown below. X Y Z Which row best describes the stability of the pipes? X Y Z A neutral equilibrium unstable equilibrium neutral equilibrium B neutral equilibrium unstable equilibrium stable equilibrium C stable equilibrium neutral equilibrium unstable equilibrium D stable equilibrium unstable equilibrium unstable equilibrium 11 Syringes X and Y are filled with water and are connected by a tube. The cross - sectional areas of syringes X and Y are 12 mm2 and 36 mm2 respectively. Syringe X Syringe Y What is the input force F required to produce an output force of 54 N on syringe Y? A 18 N B 27 N C 108 N D 162 N 54 N F water 12 mm2 36 mm2

6 12 The height of mercury in a barometer is h when the atmospheric pressure is 100 000 Pa. What is the pressure at X? A 25 000 Pa B 50 000 Pa C 75 000 Pa D 100 000 Pa 13 A ball is released from rest on a smooth surface as shown. Taking air resistance to be negligible, which of the following is correct? A The ball will move pass point Z. B The kinetic energy of the ball at Y is greater than X. C The kinetic energy of the ball at W is the lowest. D The potential energy of the ball is smaller at X than Y. vacuu m ball W X Y Z ground vacuum

7 [Turn over 14 A ball is at rest at point X in a vacuum. The ball falls under gravity from X to Y to Z. Distances are shown in diagram. What is the ratio of 𝑘𝑖𝑛𝑒𝑡𝑖𝑐 𝑒𝑛𝑒𝑟𝑔𝑦 𝑜𝑓 𝑡ℎ𝑎 𝑏𝑎𝑙𝑙 𝑎𝑡 𝑍 𝑘𝑖𝑛𝑒𝑡𝑖𝑐 𝑒𝑛𝑒𝑟𝑔𝑦 𝑜𝑓 𝑡ℎ𝑒 𝑏𝑎𝑙𝑙 𝑎𝑡 𝑌 ? A √2 B 2 C 2√2 D 4 15 A motor is used to pull a 2.0 kg toy car up an inclined plane. The toy car is pulled from the bottom to the top of the inclined plane in 5.0 s. The gravitational field strength is 10 N/kg. The motor has an average power of 100 W. What is its efficiency? A 10% B 20% C 30% D 40% 16 The resistance of a piece of platinum wire in pure melting ice is 800 Ω. The resistance of the wire in steam is 910 Ω. What would be the temperature when the wire has a resistance of 1000 Ω? A 55 °C B 110 °C C 182 °C D 220 °C inclined plane 10 m 20 m

8 17 The diagram shows a thermocouple connected to a galvanometer. Two ends of the wires are placed in junctions P and Q respectively. There is no deflection in the galvanometer. Which of the following is not a possible reason for the observation? A Both junctions P and