QSS 2024 4E Physics Prelim P1

NAME: CLASS: INDEX NO: QUEENSWAY SECONDARY SCHOOL PRELIMINARY EXAMINATION 2024 SECONDARY 4 EXPRESS PHYSICS 6091/01 Paper 1 Multiple Choice 28 August 2024 1 hour 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. This document consists of 20 printed pages. [Turn over Parent’s Signature:

2 1 A voltage of 0.4 decivolt is applied across a resistor, resulting in a current of 20 nanoamperes. Which of the following gives the voltage in volt and the current in ampere? voltage / V current / A A 0.004 0.00002 B 0.004 0.00000002 C 0.04 0.00002 D 0.04 0.00000002 2 The graph shows the speed of a weather balloon as it rises through the atmosphere. At which point in the balloon’s rise does the acceleration start to decrease? 3 The graph shows the speed of a car as it moves from rest. What is the average speed of the car during the first 3 s? A 4 m/s B 6 m/s C 18 m/s D 36 m/s speed time A B C D time / s speed m / s

3 4 Planks of wood delivered to a building site are all 15.0 cm wide and 2.00 cm thick but they have different lengths. They are made of wood with a density of 1600 kg/m3. The planks are lifted by a pulley system that cannot lift masses greater than 6.0 kg. What is the length of the longest plank that can be lifted by this pulley system? A 125 cm B 320 cm C 500 cm D 1280 cm 5 The weight of a spacecraft is 2500 N on Earth and 950 N on Mercury. The gravitational field strength on Earth is 10 N/kg. What is the gravitational field strength on Mercury? A 3.80 N/kg B 2.63 N/kg C 0.38 N/kg D 0.26 N/kg 6 Two forces act on a car as shown. If force F is equal to force R, which of the following is correct? A The car is moving with non-uniform acceleration. B The car is moving with uniform acceleration. C The car is moving with uniform velocity. D The car is not moving. forward force F air resistance R 2.00 cm 15.0 cm length

4 7 The total mass of the load and the wheelbarrow shown i s 75 kg. The gravitational field strength is 10 N/kg.