2023 VJC Prelim P1 QP

VICTORIA JUNIOR COLLEGE 2023 JC2 PRELIMINARY EXAMINATION Higher 1 Name : __________________________ CT group : ________________ PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet 8867/01 25 September 2023 MONDAY 2.00 pm to 3.00 pm (1 hour) READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, glue or correction fluid. Write your name and Civics Group on the Answer Sheet in the spaces provided unless this has been done for you. DO NOT WRITE ON ANY BARCODES. 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 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 16 printed pages.

2 Data speed of light in free space c = 3.00  108 m s-1 elementary charge e = 1.60  10-19 C unified atomic mass constant u = 1.66  10-27 kg rest mass of electron me = 9.11  10-31 kg rest mass of proton mp = 1.67  10-27 kg the Avogadro’s constant NA = 6.02 × 1023 mol-1 gravitational constant G = 6.67 × 10-11 N m2 kg-2 acceleration of free fall g = 9.81 m s-2 Formulae uniformly accelerated motion s = ut +( ½) at2 v2 = u2 + 2as resistors in series R = R1 + R2 + … resistors in parallel 1/R = 1/R1 + 1/R2+ …

3 H1 P1 - Phy Qty and Units MCQ 1 Which of the following equations cannot be correct? (E = energy, p = momentum, c = speed of light, m = mass,) A E pc B 2 2 2 2 4E p c m c  C 2E p c D 2 2 pE m H1 P1 - Errors and UncertainƟes MCQ 2 A certain experiment is carried out such that 2 6 BCA D If A = (2.0  0.1), C = (4.10  0.05), D = (3.45  0.01), what is the percentage uncertainty of B? A 2.9 % B 7.1 % C 7.7 % D 46 % H1 P1 - Errors and UncertainƟes 3 A student repeated a measurement three times and obtained measurements of masses 35.23 g, 37.21 g and 38.25 g. A second student did the same but obtained 37.23 g, 37.21 g and 37.25 g. What can be said of the second student’s measurements compared to those of the first? A More accurate B More precise C Less accurate D Less precise

4 H1 P1 KinemaƟcs 4 The motions of two objects P and Q along a straight line are shown in the following velocity-time graphs. How do the magnitudes of the displacement and the total distance travelled compare for the two objects from time 0 to time t2? displacement distance A different different B different same C same different D same same H1 P1 KinemaƟcs 5 A toy aeroplane is flying above the ground at a constant