2024 RI Prelim H1 Phy Paper 1 Questions

This document consists of 15 printed pages. © Raffles Institution 8867/01 [Turn over RAFFLES INSTITUTION 2024 Preliminary Examination PHYSICS Higher 1 Paper 1 Multiple Choice Questions 8867/01 25 September 2024 1 hour Additional Materials: OMR Form READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your index number, name and class on the OMR Form in the spaces provided. Shade the appropriate boxes. There are thirty 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 OMR Form. Read the instructions on the OMR Form very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any working should be done in this booklet. The use of an appropriate scientific calculator is expected, where necessary.

2 © Raffles Institution 8867/01 [Turn over Data speed of light in free space c  8 1 3.00 10 m s   elementary charge e  19 1.60 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  21 2ut at 2v  2 2u as resistors in series R  1 2 R R   resistors in parallel 1/R  1 21 1 R R  

3 © Raffles Institution 8867/01 [Turn over 1 Which of the following is a reasonable estimate? A The weight of a basketball is 6.0 N. B The height of an 80-storey building is 1.0  103 m. C The volume of an orange is 1.5  10−2 m3. D The distance between two adjacent Singapore MRT stations is 1.0  105 m. 2 The speed v of a liquid leaving a tube depends on the difference in pressure P between the ends of the tube and the density  of the liquid according to the equation n Pv k       where k is a unitless constant. What is the value of n? A 1 2 B 1 C 3 2 D 2 3 A micrometer screw gauge is used to measure the diameter s of two cylinders. The measurements of the diameters, with their actual uncertainties, are given as follows: diameter of first cylinder  12.78 0.02 mm  diameter of second cylinder  16.24 0.03 mm  What is the percentage uncertainty in the difference of the two diameters? A 0.29% B 0.58% C 0.87% D 1.4%

4 © Raffles Institution 8867/01 [Turn over 4 To determine the acceleration of free fall, a steel ball is dropped above two light gates as shown. The ba