ACS Exp Prelim 2024 P1_final

This document consists of 15 printed pages PRELIMINARY EXAMINATION 2024 YEAR 4 EXPRESS PHYSICS 6091 / 01 Thursday 15 August 2024 1 hour READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name and index number on the Answer Sheet in the spaces. 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 2B pencil on the separate OTAS. 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. Unless otherwise stated, take gravitational field strength, g, to be 10 N kg -1. Index Number Name

Y4Exp Physics Prelim 2024 P1 Page 2 of 15 1 The following physical quantities can be either positive or negative. s : displacement of a particle along a straight line θ : temperature on the Celsius scale q : electric charge V : potential difference on a digital voltmeter Which of these quantities are scalars? A s, θ, q, V B θ, q, V C θ, V D θ only 2 Which is a pair of SI base units? A Ampere, Voltage B Degree Celsius, Second C Kelvin, Kilogram D Metre, Newton 3 Four cars, A, B, C and D, move from rest in a straight line. The cars take the same time to accelerate to a velocity of 60 km h–1. Their velocity–time graphs are shown. Which car reaches a velocity of 60 km h–1 in the longest distance? velocity/ km h-1 time / h

Y4Exp Physics Prelim 2024 P1 Page 3 of 15 4 Two cars X and Y are positioned as shown at time t = 0 s. They are travelling in the same direction. Car X is 50 m behind car Y and has a constant velocity of 30 m s –1 as shown below. Car Y has a constant velocity of 20 m s–1. What is the value of time t when car X is level with car Y? A 1.7 s B 2.5 s C 5.0 s D 10.0 s 5 What is meant by the weight of an object? A The gravitational field acting on the object. B The gravitational force acting on the object. C The mass of the object multiplied by the gravitational force acting on the object. D The object’s mass multiplied by its acceleration. 6 The gravitational field strength in space is smaller than on the Earth’s surface. A rocket is used to launch a satellite from the Earth’s surface into space. How are the mass and the weight of the satellite affected as the satellite moves away from the surface of the Earth and into space? A Both the mass and the weight of the satellite are unaffected. B Both the mass and the weight of the satellite decreases. C The mass of the satellite is unaffected and the weight of the satellite increases. D The mass of