YJC H1 PHY P1

Candidate’s Name ………………….………………………… CTG …........... YISHUN JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATIONS 2016 PHYSICS 8866/1 HIGHER 1 26 August 2016 Paper 1 Multiple Choice Friday 1 hour Additional Materials: Optical Mark Sheet YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEG E YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIO R COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISH UN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLL EGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE YISHUN JUNIOR COLLEGE INSTRUCTIONS TO CANDIDATES Do not open this booklet until you are told to do so. Write your name and CTG on the Optical Mark Sheet in the spaces provided. Shade your NRIC in the space provided. There are thirty 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 Optical Mark Sheet. Read the instructions on the Optical Mark Sheet carefully. INFORMATION FOR CANDIDATES 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. This question paper consists of 15 printed pages

2 9646/YJC/2016/JC2 Preliminary Examinations/Paper 1 Data speed of light in free space, c = 3.00  108 m s-1 elementary charge, e = 1.60  10-19 C the Planck constant, h = 6.63  10-34 J s unified atomic mass constant, u = 1.66  10-27 kg rest mass of electron, me = 9.11  10-31 kg rest mass of proton, mp = 1.67  10-27 kg Acceleration of free fall g = 9.81 m s-2 Formulae uniformly accelerated motion, s = ut + 2 1 at2 v2 = u2 + 2as work done on/by a gas, W = p  V hydrostatic pressure, p =  g h resistors in series, R = R1 + R2+………. Resistors in parallel, R 1 ........11 21  RR =

3 9646/YJC/2016/JC2 Preliminary Examinations/Paper 1 1 A boat changes its velocity from 16 m s−1 due north to 12 m s−1 due east. What is its change in velocity? A 4 m s−1 at direction of 37° east of north B 4 m s−1 at direction of 53° west of north C 20 m s−1 at direction of 37° east of south D 20 m s−1 at direction of 53° west of south 2 A student uses an analogue mass balance to measure mass. The mass balance is marked for every 0.2 kg but has a zero error of 0.4 kg. The student is not aware of this zero error and writes down a reading of 2.2 kg. Is this reading accurate and precise? accurate precise A no no B no yes C yes no D yes yes 3 The e.m.f induced in a coil by a changing magnetic flux is equal to the rate of change of flux with time. Which is a unit for magnetic flux? A kg m2 s−2 A−1 B kg m2 s−2 A C kg m2 s−1 A−1 D m s−2 A−1

4 9646/YJC/2016/JC2 Preliminary Examinations/Paper 1 4 A car starts from rest and travels along a straight road. The graph shows the variation with time t of its acceleration a, during part of the journey. At which points on the graph does the car have its greatest speed and greatest displacement? greatest speed greatest displacement A J K B K M C L L D M K 5 A motorist travelling at 13 m s −1 approaches a traffic light which turns red when he is 25 m away from the stop line. His reaction time (i.e. the interval between seeing the red line and applying the brakes) is 0.70 s and he brakes at a rate of 4.5 m s −2. How far from the stop line will he stop, and on which side of it? A 2.9 m behind the line B 2.9 m beyond the line C 4.0 m behind the line D 4.0 m beyond the line K J 0 a M t

5 9646/YJC/2016/JC2 Preliminary Examinations/Paper 1 6 An object is projected with velocity of 60 m s−1 at 45° above the horizontal. Air resistance is negligible. What is the speed of the object after 6.0 s? A 20.5 m s−1 B 35.5 m s−1 C 45.5 m s−1 D 50. 5 m s−1 7 A man of weight 590 N is standing on a weighing scale in a lift. The lift is accelerating upwards at 2.00 m s−2. What is the reading on the weighting scale? A 470 N B 590 N C 710 N D 890 N 8 Newton’s third law of motion concerns action and reaction forces. Which pair of forces is not a valid example? A The gravitation forces of attraction between the Earth and a satellite orbiting around the Earth. B The forces of repulsion between a horse magnet and a wire carrying current placed in between the horse magnet. C Tension from a string pulling the object upwards and pulling force by the object on the string. D Weight of a book placed on a floor and the normal force from the floor on the book. 45° horizontal

6 9646/YJC/2016/JC2 Preliminary Examinations/Paper 1 9 Two masses m1 and m2 are connected by a light rod as shown. The blocks are moving with acceleration a, down a smooth slope that is inclined at angle θ. What is the tension in the rod? A m1a (sin θ) B (m1 − m2 )a C (m1 + m2)a D zero 10 A man sitting in a train carriage observes that a pendulum hanging from the ceiling makes an angle of 30º to the vertical. What is the acceleration of the train? A 4.9 m s−2 B 5.7 m s−2 C 8.5 m s−2 D 9.8 m s−2 11 A hinged shelf is held horizontally against a wall by a rope. The forces acting on the shelf are its weight, the force by the rope and the force by the hinge. Which arrow could represent the direction of the force the hinge exerts on the shelf? wall rope weight of shelf hinge A B C D m 1 m 2 rod θ a

7 9646/YJC/2016/JC2 Preliminary Examinations/Paper 1 12 A constant force F is applied to a stationary object of mass m on a frictionless surface. Thus, the velocity of the object increases to some value v in a time t. It covers a distance s during this time. Which expression represents the kinetic energy gained by the object? A F s t B F v C F s D m s 2 t 13 The power delivered by an engine to a train travelling at a constant speed of 45 m s1 is 2.0 MW. What is the resistive fo