IJC H1 PHY P1

/g3 [Turn over INNOVA JUNIOR COLLEGE JC2 PRELIMINARY EXAMINATION in preparation for General Certificate of Education Advanced Level Higher 1 CANDIDATE NAME CLASS INDEX NUMBER PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet 8866/01 30 August 2016 1 hour READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, civics group and index num ber on the Answer sheet in the spaces provided unless this has been done for you. There are 30 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. This document consists of 15 printed pages and 1 blank page. /g3 Innova Junior College

2 © IJC 2016 8866/01/Prelim/16 Data speed of light in free space, c = 3.00  10 8 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 1at2 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 © IJC 2016 8866/01/Prelim/16 [Turn over   1 Which of the following statements about a typical household washing machine is not true? A The maximum speed of rotation of the drum is 100 revolutions per second. B The power consumption of a washing machine is about 500 W. C The mass of an unloaded machine is about 75 kg. D It occupies around 108 mm3 of space. /g3 /g3 2 The strain energy W of a spring is determined from its spring constant k and extension x. The spring obeys Hooke’s law and the value of W is calculated using the equation shown. 21 2Wk x The spring constant is 100 ± 2 N m-1 and the extension is 0.050 ± 0.002 m. What is the percentage uncertainty in the calculated value of W? A 6% B 10% C 16% D 32% /g3 /g3 3 What is the SI base unit for electrical resistance? A kg m2 s-2 A-1 B kg m2 s-3 A-2 C kg m s-2 A-1 D kg m s-3 A-1 /g3 /g3 4 A ball is thrown vertically upwards and air resistance is not negligible. Which of the following statements is false? A At the maximum height, the acceleration is zero. B The distances travelled for the upward and downward motions are the same. C The time taken for the ball to travel up is shorter than the time taken for the downward motion. D The magnitude of the acceleration for the upward motion is always greater than 9.81 m s-2. /g3 /g3/g3

4 © IJC 2016 8866/01/Prelim/16 5 The graph shows the variation with time t of the velocity v of an object moving in along a straight line. Which graph represents the displacement s of the object in the time t = 0 to t = T ? A B /g3/g3 C D /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3 /g3

5 © IJC 2016 8866/01/Prelim/16 [Turn over   6 Two trolleys P and Q approach each other and collide. The graph shows the variation with time t of the force F of P on Q. Which graph, drawn to the same scale, shows the variation with time t of the force F of Q on P? A B C D 7 A horizontal jet of water strikes a vertical wall and flows down the wall without splashing. Which quantity equals the force exerted by the jet on the wall? A change in kinetic energy of the water per length of jet stopped B change in momentum of the water stopped per second C rate of loss of kinetic energy of the water D weight of the water stopped per second

6 © IJC 2016 8866/01/Prelim/16 8 A car of mass m travels at constant speed up a slope at an angle θ to the horizontal, as shown in the diagram. Air resistance and friction provide a resistive force F. What is the driving force provided by the car’s engine? A mg cos θ B mg sin θ C mg cos θ + F D mg sin θ + F 9 An archer draws his bowstring back to position X. The bowstring and arrow are shown. The tension T in the string is also shown. Then he draws the bowstring back further to position Y. The resultant force on the arrow is greater when the arrow is released from position Y. What is the increase in force? A 15 N B 27 N C 40 N D 53 N

7 © IJC 2016 8866/01/Prelim/16 [Turn over   10 The initial velocity of a body is represented by the vector P, while its final velocity is represented by the vector Q. The change in the body’s velocity is represented by the vector R. Which diagram best represents P, Q and R in vectorial form? A B C D 11 A street lamp is fixed to a wall by a metal rod and a cable. Which vector triangle represents the forces acting at point P? /g3 /g3 A B C D

8 © IJC 2016 8866/01/Prelim/16 12 The diagram shows a crane supporting a load L. A mass provides a balancing load W. The position of the loads are such that the system is perfectly balanced with Wx = Ly. The ground provides a reaction force R. If the load L is moved further out so that the distance y increases, and the crane does not topple, which statement is correct? A B C D

9 © IJC 2016 8866/01/Prelim/16 [Turn over   13 The force resisting the motion of a car is proportional to the square of the car’s speed. The magnitude of the force at a speed of 20 m s-1 is 800 N. What effective power is required from the car’s engine to maintain a steady speed of 40 m s -1? A 3.2 kW B 64 kW C 128 kW D 512 kW 14 A solid rubber ball has a diameter of 8.0 cm. It is released from rest with the top of the ball 80.0 cm above a horizontal surface. It falls vertically and then bounces up so that the maximum height reached by the top of the ball is 45.0 cm, as shown. If the kinetic energy of the ball is 0.75 J just before it strikes the surface, what is its kinetic energy just after it leaves the surface? A 0.36 J B 0.39 J C 0.40 J D 0.42 J /g3 /g3 15 Air is enclosed in a cylinder by a gas-tight, frictionless piston of cross-sectional area 25.0 cm2. When a constant external pressure of 3.0 × 104 Pa is exerted on the piston, it settles at a distance from the end of the cylinder. The gas is next heated and the piston moves 5.0 mm as a result. What is the work done on the gas? A 63.75 10 J B 0.375 J C 0.375 J D 63.75 10 J /g3 gas 3.0 x 104 Pa piston cylinder