2025 WSS Physics Prelim Paper 1 QP

_________________________________________________________________________ This document consists of 21 printed pages and 3 blank pages Name: ( ) Class: WHITLEY SECONDARY SCHOOL A Caring and Learning Community of Leaders Perseverance * Respect * Integrity * Discipline *Empathy PRELIMINARY EXAMINATION 2025 Additional Materials: Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name, Class and index number on the Answer Sheet in the spaces provided. There are forty questions on 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. The use of an approved scientific calculator is expected, where appropriate. For Examiner’s Use Total / 40 SUBJECT : PHYSICS PAPER 1 (6091/01) LEVEL : Sec 4 G3 DATE : 2 September 2025 DURATION : 1 hr SETTER : Mr Krishan Sanjay VETTER : Ms Keira Htay

2 1 What is the correct order of magnitude for the diameter of an atom, the diameter of the Earth, and the diameter of a human hair? diameter of an atom diameter of Earth diameter of human hair A 0.1 µm 10 Mm 100 µm B 0.1 µm 10 Gm 10 µm C 0.1 nm 10 Mm 100 µm D 0.1 nm 10 Gm 10 µm 2 Which of the following lists of SI units contains only base units? A ampere, kilogram, kelvin, metre, mole B ampere, kilogram, metre, newton, ohm C kelvin, mole, newton, second, volt D kilogram, metre, mole, ohm, second 3 A car is travelling at a velocity of 2.0 m / s. It accelerates at 0.20 m / s2 for 2.5 minutes. What is the final velocity of the car? A 2.5 m / s B 5.2 m / s C 30 m / s D 32 m / s

3 4 The velocity-time graph of two cars is shown. Car X and car Y started off their journey from the same position when t = 0.0 s. At what time will the two cars pass each other again? A 1.0 s B 2.0 s C 3.0 s D 4.0 s 5 An aircraft heads north-east at 400 km / h. The wind is blowing towards the north-west at 100 km / h. Which vector diagram represents the correct way to obtain the resultant velocity of the aircraft? A B C D

4 6 Two boxes, P and Q, were pushed along a smooth surface from rest. The acceleration of box P is twice that of box Q. The mass of box Q is thrice of box P. Which of the following shows the correct relationship between force exerted on box P, Fp and force on box Q, FQ? A Fp = (2/3) FQ B Fp = (3/2) FQ C Fp = 3 FQ D Fp = 6 FQ 7 An athlete with mass 80 kg trains by performing press-ups with a load on his bac