TMJC_2024_H1 Physics P2_QP_n_MS

CANDIDATE NAME ( ) CIVICS GROUP _________________________________________________________________________ H1 PHYSICS 8867/02 Paper 2: Structured Questions 11 September 2024 2 hours Candidates answer on the Question Paper. No Additional Materials are required. _________________________________________________________________________ READ THESE INSTRUCTIONS FIRST Write your name and Civics Group in the spaces at the top of the 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, glue or correction fluid. The use of an approved scientific calculator is expected, where appropriate. Section A Answer all questions. Section B Answer one question only. The number of marks is given in brackets [ ] at the end of each question or part question. ______________________________________________________________________________ This document consists of 25 printed pages and 1 blank page. TAMPINES MERIDIAN JUNIOR COLLEGE JC2 PRELIMINARY EXAMINATION For Examiner’s Use Percentage Subtotal P1 /30 / 33 Paper 2 1 / 10 2 / 15 3 / 10 4 / 10 5 / 15 6 / 20 7 / 20 Deductions Subtotal P2 / 80 / 67 Grand total / 100

2 Tampines Meridian Junior College 2024 JC2 Preliminary Examination H1 Physics Data speed of light in free space c = 8 13.00 10 m s  elementary charge e = 191.60 10 C unified atomic mass constant u = 271.66 10 kg rest mass of electron me = 319.11 10 kg rest mass of proton mp = 271.67 10 kg the Avogadro constant NA = 23 16.02 10 mol  gravitational constant G = 11 2 26.67 10 N m kg  acceleration of free fall g = 29.81 m s Formulae uniformly accelerated motion s = ut + at2 v2 = u2 + 2as resistors in series R = … resistors in parallel 1 / R = … 1 2 1 2R R  1 21/ 1/R R 

3 Tampines Meridian Junior College 2024 JC2 Preliminary Examination H1 Physics Section A Answer all questions in this section in the spaces provided. 1 Fig.1.1 shows an elongated block with a square cross sectional area of a particular conducting material. The rate of thermal energy transfer with respect to time, q, through the block is given by Tq py x      2 where p is the conductivity of the material; y is the length of the square cross-sectional area of the material; T is the temperature difference between the two ends of the material; and x is the length of the block. Fig. 1.2 shows the data obtained in a particular experiment. Fig. 1.2 quantity value percentage uncertainty T 323 K ± 0.50% x 1.00 m ± 1.0% p 237 W m−1 K−1 ± 2.0% y 0.200 cm ± 3.0% (a) Determine the SI