YIJC 2024 JC2 PRELIM H2 Phy P4 Soln

YISHUN INNOVA JUNIOR COLLEGE JC 2 PRELIMINARY EXAMINATION Higher 2 CANDIDATE NAME Suggested Solution & Marking Scheme CG INDEX NO PHYSICS Paper 4 Practical Candidates answer on the Question Paper. Additional Materials: As listed in the apparatus list. 9749/04 26 August 2024 2 hours 30 minutes READ THESE INSTRUCTIONS FIRST This document consists of 7 printed pages and 1 blank page. This - Blank Page - This document consists of 22 printed pages and 4 blank pages. Shift Laboratory For Examiner’s Use 1 /11 2 /11 3 /22 4 /11 Total /55 Write your name and class in the spaces at the top of this page. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue or correction fluid/tape. Answer all questions. You will be allowed a maximum of one hour with the apparatus for Questions 1 and 2, and a maximum of one hour for Question 3. You are advised to spend approximately 30 minutes on Question 4. Write your answers in the spaces provided on the question paper. The use of an approved scientific calculator is expected, where appropriate. You may lose marks if you do not show your working, where appropriate, in the spaces provided. Give details of the practical shift and laboratory, where appropriate, in the boxes provided. At the end of the examination, fasten all your work securely together. The number of marks is given in brackets [ ] at the end of each question or part question.

©YIJC 9749/04/YIJC/PRELIM/2024 [Turn over 2 BLANK PAGE

©YIJC 9749/04/YIJC/PRELIM/2024 [Turn over 3 1 In this experiment, you will determine the resistivity of a metal. (a) Set up the circuit as shown in Fig. 1.1. Fig. 1.1 Record the voltmeter reading E. E = ………………………………. V Set up the circuit shown in Fig. 1. 2. Fig. 1.2 (not to scale) P and Q are crocodile clips. The distance between the nail and Q is x, as shown in Fig. 1.2. Adjust the position of Q until x is approximately 45 cm. Close the switch. The voltmeter reading is V. Measure and record x and V. x = ………………………………. V = ………………………………. [1] Open the switch. 3.30 V 45.0 cm 1.51 V • x is between 44.0 cm & 46.0 cm with precision 0.1 cm • Range of V is 1.00 V to 2.00 V with precision 0.01 V [1] Marker’s comment: Common mistake where students do not include the units. Some students made errors in the d.p. when recording in metre.

©YIJC 9749/04/YIJC/PRELIM/2024 [Turn over 4 (b) Vary x by adjusting the position of Q on the wire. For each value of x, measure V.