Catholic High 2023 Year 4 Physics TA2 blank

Name: Index Number: Class: CATHOLIC HIGH SCHOOL Term 2 Class Test Year 4 (Integrated Programme) PHYSICS 1. Physical Quantities, Units and Measurement 2. Kinematics 3. Dynamics 4. Mass, Weight and Density 5. Thermal Properties of Matter 6. Static Electricity 7. Current of Electricity 8. D.C. Circuits 9. Practical Electricity 10. Practical (Planning Skills) 3 May 2023 40 minutes READ THESE INSTRUCTIONS FIRST Write your name, index number and class on all the work you hand in. Write in dark blue or black link. You may use a HB pencil for any diagrams or graphs. Do not use paper clips, glue or correction fluid. Section A: Multiple Choice There are ten questions in this section. 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 the table provided at the start of this section. 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. Section B: Structured You may use an HB pencil for any diagrams or graphs. Answer all questions. Candidates are reminded that all quantitative answers should include appropriate units. The use of an approved scientific calculator is expected, where appropriate. Candidates are advised to show all their working in a clear and orderly manner, as more marks are awarded for sound use of Physics than for correct answers. The number of marks is given in brackets [ ] at the end of each question or part question. For examiner’s use only: Section A / 10 Section B / 25 formula s.f.   Total / 35 This document consists of 10 printed pages.

2 Section A Answer all the questions in this section. Record your choice in the table provided below. 1 2 3 4 5 6 7 8 9 10 1 An object falls from rest through the air and the air resistance acting on it increases. The object reaches terminal velocity after some time. Which quantity decreases until its terminal velocity is reached? A acceleration B gravitational field strength Jun 2012 (5054) C kinetic energy D weight 2 A hard stone hits the ground and comes to rest almost immediately. As the stone hits the ground, what is the direction and the size of the force acting on the ground? A downwards and equal to the weight of the stone B downwards and larger than the weight of the stone C upwards and equal to the weight of the stone D upwards and larger than the weight of the stone Jun 2012 (5054) 3 A man pushes a heavy box along the ground. A force acts between the man’s hands and the box. Another force acts between the man’s feet and the floor. In which direction do these forces act on the man? force on man’s hands force on man’s feet A towards the left towards the left B towards the left towards the right C towards the right towards the left D towards the right towards the right

3 4 Four objects are situated in places with different gravitational field strengths. Which object has the greatest weight? mass / kg gravitational field strength / N / kg A 3.0 10.4 B 3.5 9.5 C 4.0 10.2 D 4.5 9.0 Jun 2014 (5054) 5 A positively charged metal sphere is placed midway between two previously uncharged metal rods, one of which is connected to earth. Which diagram shows the charges on the rods? A B C D 6 A piece of wire has a resistance of 16 Ω. Another wire made from the same metal has four times the length and twice the cross-sectional area. What is the resistance of the wire? A 8 Ω B 32 Ω C 96 Ω D 128 Ω Jun 2014 (5054) 7 Three identical cells are connected in parallel to a resistor. What is the advantage of using three cells in parallel, rather than using a single cell? A Each cell produces more energy. B Each cell supplies more charge. C Each cell takes longer to deplete. D The total electromotive force (e.m.f.) is larger.

4 8 In a circuit, a voltmeter is used to measure the potential difference across a lamp. An ammeter is used to measure the current in the lamp. Which diagram shows the circuit? A B C D Nov 2017 (5054) 9 An electrical appliance is plugged into a socket in the wall using an electrical cable. The plug contains a fuse. What is the main purpose of the fuse? A to earth the appliance B to earth the plug C to protect the user from electric shock D to protect the electrical cable from overheating 10 One kilowatt-hour of energy costs $0.24. How much does it cost to run a 200 W heater for 180 minutes? A $0.02 B $0.05 C $0.07 D $0.14 Jun 2014 (5054)

5 Section B Answer all the questions in this section. 1 A microphone has a weight W of 6.0 N. It is suspended by wire X from the ceiling in a radio studio. Fig. 1.1 shows the microphone held in a stationary position by a wire Y. Fig. 1.1 The tension T in wire Y is 8.0 N. Using a scale diagram, determine the magnitude and the direction of the resultant of W and T. magnitude = direction = [4]

6 2 A parachutist jumps from an aircraft. Some time later, the parachute opens. Fig. 2.1 is a graph of the vertical speed of the parachutist plotted against time t. Fig. 2.1 (a) Describe the motion of the parachutist between t = 0 and t = 20 s. [2] (b) A second parachutist, of smaller mass, falls out of the aircraft at the same time as the parachutist, using the same parachute. On Fig. 2.1 , using the same axes, sketch the speed -time graph of the second parachutist as it falls, until t = 20 s. [1]

7 3 Water at a temperature of 16 °C enters an ice-making machine and emerges as ice cubes at a temperature of –5 °C. The melting point of ice is 0 °C. The following data are provided: • specific heat capacity of liquid water = 4.2 × 103 J / (kg °C) • specific latent heat of fusion of water = 3.4 × 105 J / kg • specific heat capacity of ice = 2.1 × 103 J / (kg °C) (a) State the difference between specific heat capacity and specific latent heat of fusion. [2] (b) Calculate the total energy removed from 2.0 kg of water at 16 °C as it changes into ice at –5 °C. energy = [3]

8 4 A hockey player trains on a nylon-fibre surface. As he runs around, his shoes rub against the surface, and he becomes positively charged. (a) Explain, in terms of the charges involved, how he becomes positively charged. [2] (b) At the end of the training session, the hockey player touches a metal gate and feels an electric shock. (i) Explain how this shock is produced. [1] (ii) The shock lasts for 0.15 ms. During this time, the current has an average value of 1.6 mA. Calculate the amount of charge on the hockey player just before he touches the gate. charge = [2]

9 5 Fig. 5.1 shows a resistance wire XY used as a potentiometer circuit by a student. The total resistance of the resistance wire XY is 4.8 kΩ. Fig. 5.1 (a) (i) State the reading on the voltmeter V when the student places jockey J at the mid-point between X and Y. reading = [1] (ii) Explain your answer in (a)(i). [2] (b) The voltmeter is now replaced by an electric bell that switches on when the potential difference across it is at least 10 V. State where the student sho