2022 NYGH Phy Prelims P1

南洋女子中学校 NANYANG GIRLS' HIGH SCHOOL Preliminary Examination 2022 Secondary Four 'O' Level CANDIDATE NAME CENTRE NUMBER S INDEX NUMBER PHYSICS 6091/01 Paper 1 Multiple Choice 29 Aug 2022, Monday 1 hour Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, Centre number and index number on the Answer s heet in the spaces provided unless this has already been done for you. There are forty questions in 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 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. Setter: CMH This document consists of 19 printed pages and 1 blank page. [Turn over

2022 Preliminary Examination Secondary 4 2 Nanyang Girls’ High School Setter: CMH Physics I 1 Which instrument can be used directly to measure the circumference of a beaker? A tape B rule C calipers D micrometer 2 The time taken for a simple pendulum to swing between positions X and Y is 2.5 s. How many complete periods of the oscillations are there in one minute? A 5 B 12 C 24 D 60 3 An autonomous car is programmed to take a route QRST which is 1.0 km to the north, 2.0 km to the east and finally another 1.0 km to the north. What is the distance travelled by the car for the route and the magnitude of the displacement of the car for the route? distance / km displacement / km A 2.0 2.8 B 2.0 4.0 C 4.0 2.8 D 4.0 4.0 XY SR T 1.0 km 2.0 km 1.0 km Q

2022 Preliminary Examination Secondary 4 3 Nanyang Girls’ High School Setter: CMH Physics I [Turn over 4 Two forces of magnitude 10 N and 20 N are added to produce a resultant. Which statement about the resultant is correct? A It may be zero. B It may be a scalar quantity. C It’s magnitude cannot be greater than 20 N. D It’s direction can be the same as the direction of the 10 N or 20 N force. 5 An object is dropped from a height and experiences considerable air resistance. Which displacement-time graph illustrates the motion of the object? A B C D time / s time / s time / s time / s displacement / m displacement / m displacement / m displacement / m 0 0 0 0

2022 Preliminary Examination Secondary 4 4 Nanyang Girls’ High School Setter: CMH Physics I 6 A stone is thrown vertically upwards on planet P. The velocity time-graph of the stone is shown. What is the gravitational acceleration on planet P when its velocity is zero? A 0.0 m/s 2 B 5.0 m/s2 C 7.0 m/s2 D 10 m/s2 7 A hot air balloon rises vertically up at constant velocity. Three forces, upthrust, weight and drag, act on the balloon. Which relationship between these forces is correct? A W > D + U B D + U = W C U = W = D D D + U > W 8 Which pair of forces is a pair of action-reaction forces? A force pulling a rope and tension in the rope B thrust acting on a car and air resistance acting on the car C upward force acting on a plane and weight acting on the plane D gravitational force on a book and reaction force acting on the book drag D weight W upthrust U constant velocity 8.0 4.0 0.0 -4.0 -8.0 1.0 3.0 velocity / m/s 2.0 time / s

2022 Preliminary Examination Secondary 4 5 Nanyang Girls’ High School Setter: CMH Physics I [Turn over 9 A constant net force acts on a trolley with some boxes of sand at rest. As the trolley moves in a straight line, the sand in the box gradually leaks a way through a hole at the bottom at a constant rate. Which is the speed-time graph for the trolley? A B C D speed constant net force 0 time 0 time speed 0 time speed speed 0 time boxes trolley

2022 Preliminary Examination Secondary 4 6 Nanyang Girls’ High School Setter: CMH Physics I 10 A man pushes a box along a rough floor. In which directions are the forces acting on the man’s hands and his feet? force on man’s hands force on man’s feet A towards the left towards the left B towards the right towards the left C towards the left towards the right D towards the right to wards the right 11 A force of 20 N acts on a block of mass of 4.0 kg. The block accelerates at 3.0 m/s2. Which is the magnitude of the resistive forces acting on the block? A 5.0 N B 8.0 N C 12 N D 20 N 12 X and Y are two solid cylinders of the same weight. X has a larger volume than Y. Which statement is correct? A X has the same inertia as Y and a greater density than Y. B X has the same inertia as Y and a lower density than Y. C X has a greater inertia than Y and a greater density than Y. D X has a greater inertia than Y and a lower density than Y. X Y 4.0 kg 20 N

2022 Preliminary Examination Secondary 4 7 Nanyang Girls’ High School Setter: CMH Physics I [Turn over 13 A block of mass 27 g and density 4.5 g/cm3 is immersed in a measuring cylinder containing 50.0 cm3 of water. What is the final reading on the measuring cylinder? A 50.2 cm3 B 54.5 cm3 C 56.0 cm3 D 77.0 cm3 14 A 4.00 m long uniform plank weighing 40 N balances on pivot P when a load of 60 N is placed at one end. What is the distance d of the pivot P from the load? A 0.80 m B 1.00 m C 1.20 m D 2.00 m 15 A balancing sailor toy rests on a stand. It is free to rotate about the pivot. When displaced slightly, it returns to this resting position. Where is the centre of gravity of this toy? d 40 N 60 N P sailor toy heavy ball pivot stand A B C D

2022 Preliminary Examination Secondary 4 8 Nanyang Girls’ High School Setter: CMH Physics I 16 A force of 30 N is used to knock a nail into a wall. What is the pressure exerted by the nail onto the wall? A 2.0 N/mm2 B 15 N/mm2 C 60 N/mm2 D 450 N/mm2 17 In a simple hydraulic system, an effort of 80 N exerted on a piston of cross-sectional area 10 cm2 supports a load L on a platform P, of negligible weight. P has a cross- sectional area of 300 cm2. What is the weight of the load L? A 80 N B 240 N C 800 N D 2400 N 18 A body of mass 80 kg drops from a height of 20 m. The gravitational field strength is 10 N/kg. What is the speed of the body when it hits the ground? Ignore air resistance. A 10 m/s B 20 m/s C 200 m/s D 400 m/s area 2.0 mm2 30 N nail wall L 80 N platform P of area 300 cm2 piston of area 10 cm2 area 15.0 mm2

2022 Preliminary Examination Secondary 4 9 Nanyang Girls’ High School Setter: CMH Physics I [Turn over 19 A mercury manometer has some air trapped at its closed end. The atmospheric pressure is 76 cm Hg. What is the pressure difference between the pressure of the trapped gas and the atmospheric pressure? A 10 cm Hg B 50 cm Hg C 66 cm Hg D 86 cm Hg 20 Some smoke particles in air are trapped in a transparent cell a nd observed under a microscope. Bright specks of light are seen moving at random. Which statement is correct? A The specks