MFSS Prelim P1

[Turn over Name Reg. No Class Physics 6091/01 Paper 1 [40 marks] PRELIMINARY EXAMINATION August 2024 1 hour Additional Materials: Electronic calculator This question paper consists of 18 printed pages. Setter: Mr Johnson Tay Vetter: Mrs Neo Peck Hoon 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 4EX 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. INFORMATION FOR CANDIDATES There are forty 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 N/kg.

2 Answer all questions on the OTAS answer sheet provided. 1 A stone is dropped from the top of a building to the ground. Which option describes a vector quantity? A Heat gained by the stone through its impact with the ground. B Kinetic energy of the stone as it reaches the ground. C Time taken for the stone to reach the ground. D Velocity of the stone when it is halfway to the ground. 2 The height, h, of an oscillating mass is measured by a data logger. A graph of height, h, against time is shown below. What is the period of the oscillation? A 0.15 s B 0.30 s C 0.45 s D 0.60 s

3 [Turn over 3 In a laboratory, a ball is dropped in a vacuum and falls 200 cm. Which statement describes the acceleration of the ball? A It is greater at 10 cm than at 200 cm. B It is greatest at 200 cm. C It is smaller at 50 cm than at 100 cm. D It is the same value at 50 cm as at 150 cm. 4 The graph shows how displacement varies with time for three cars X, Y and Z. Which row describes the motion of cars X, Y and Z correctly? car X car Y car Z A decreasing speed constant speed moving in the same direction as car X B decreasing speed not moving moving in the opposite direction to car X C increasing speed constant speed moving in the opposite direction to car X D increasing speed not moving moving in the same direction as car X displacement time car Y car X car Z

4 5 A stationary durian drops from a tree, and it takes 2.2 s to hit the ground. What is the height that the durian is dropped from? A 22 m B 24.2 m C 44 m D 48.4 m 6 Which statement about the masses and weights of objects on the Earth is correct? A A balance can only be used to compare weights, not masses. B Heavy objects always have more mass than light ones. C Large objects always have more mass than small ones. D Mass is a force but weight is not. 7 A body of weight 600 N is tied to a rocket. The rocket takes off and rises vertically to a height of 30 km. During the process, the gravitational field strength changes from 9.81 N/kg (at ground level) to 9.79 N/kg (at 30 km above ground level). The body remains intact and was not damaged during the ascent. What is the mass and weight of the body at 30 km above ground level? mass at 30 km / kg weight at 30 km / N A 61.2 599 B 61.2 600 C 61.3 599 D 61.3 600 8 Newton’s third law describes a pair of forces. Which row shows whether the two forces are of the same force type and whether they act on the same object? the types of forces in the pair the objects on which they act A different different B different same C same different D same same

5 [Turn over 9 A student drops, from rest, a light ball in air. The ball experiences some air resistance as it falls. What happens to the velocity and to the acceleration of the ball during the first few seconds after release? velocity acceleration A decreases decreases B decreases increases C increases decreases D increases increases 10 A student makes a model toy which balances on the end of a metal rod. Why are the weights needed? A They increase the pressure on the rod. B hey increase the weight of the model. C They lower the centre of mass below the top of the rod. D They raise the centre of mass above the top of the rod.

6 11 A uniform metre rule of weight W is pivoted at the 25 cm mark and held horizontal by a force F applied upwards at the 100 cm mark. The rule is supported by a vertical force P acting at the pivot. What is the magnitude of P? A ଵଷ𝑊 B ଵଶ𝑊 C ଶଷ𝑊 D ସଷ𝑊 12 Two blocks are joined together. One block has a density of 6.0 g/cm3 and the other has a density of 9.0 g/cm3. What is the overall density of the two blocks joined together? A 7.0 g/cm3 B 7.5 g/cm3 C 8.0 g/cm3 D 10.0 g/cm3 P

7 [Turn over 13 The diagram shows a mercury manometer. The tube is open to the atmosphere on the righthand side. The left-hand side is connected to a container containing a gas at pressure P. Atmospheric pressure on its own supports a column of mercury of height 756 mm. Which height of column does pressure P on its own support? A 676 mm mercury B 696 mm mercury C 816 mm mercury D 836 mm mercury 14 In the hydraulic press shown below, when the small piston Q is pushed down by 80 cm, the large piston P, with load, moves up by x cm. What is the distance x? A 0.13 cm B 13.3 cm C 4.8 cm D 480 cm

8 15 A small motor has an input power rating of 10 W and is switched on for 5.0 minutes. What is the electrical energy input to the motor in this time? A 2.0 J B 50 J C 300 J D 3000 J 16 Smoke particles in a transparent box are observed using a microscope. A shadow is seen to move around as shown. What does this experiment demonstrate about air molecules? A They are in continuous random motion. B They can be seen through a microscope. C They move more slowly when they are heated. D They move because of collisions with smoke particles. 17 A beaker of water is heated up and its temperature increases from 30 °C to 54 °C. Which statement correctly describes the changes at the molecular level when the temperature of the water is increased? A Both the kinetic and potential energy of the water molecules increase at the same time. B Only the kinetic energy of the water molecules has increased. C Only the potential energy of the water molecules has increased. D The kinetic energy of the water molecules increases initially until a certain temperature before the potential energy of the water molecules starts to increase. 18 A copper rod is heated at one end. Which statement correctly describes how heat transfer occurs in the copper? A Energetic copper molecules move from the cooler end to the hotter end. B Energetic copper molecules move from the hotter end to the cooler end. C Energetic free electrons move from the cooler end to the hotter end. D Energetic free electrons move from the hotter e