EJC Physics 2022 J2 H1 MYE P1 Qn

©EJC 2022 8867/01/J2H2MYE/2022 [Turn over EUNOIA JUNIOR COLLEGE JC2 Mid Year Examination 2022 General Certificate of Education Advanced Level Higher 1 CANDIDATE NAME CIVICS GROUP 2 1 - REGISTRATION NUMBER PHYSICS Paper 1 Multiple Choice Questions 8867/01 July 2022 1 hour Candidates answer on the Multiple Choice Answer Sheet READ THESE INSTRUCTIONS FIRST Write your name, civics group and registration number on all the work you hand in. Do not use paper clips, highlighters, glue or correction fluid. Answer all questions. The use of an approved scientific calculator is expected where appropriate. Multiple Choice Write in soft pencil. 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. This document consists of 15 printed pages and 1 blank page.

2 ©EJC 2022 8867/01/J2H1MYE/2022 Data Formulae uniformly accelerated motion = + ++ = + = + + =   2 22 12 12 1 2 2 11 1 s at u as R /R /R u v /R t RR resistors in series resistors in parallel speed of light in free space − − − − − − −− − × × = × × × = × = = = × = = = 81 19 27 31 e 27 p 23 1 A 11 2 2 2 3 00 1 60 9 11 1 10 m s 10 C 1 66 10 kg 10 kg 10 kg 6 02 10 mol 10 N m k 6 1 g m 7 s 7 66 98 c u . e. . . N G. g . m m . . elementary charge unified atomic mass constant rest mass of electron rest mass of proton the Avogadro constant gravitational constant acceleration of free fall

3 ©EJC 2022 8867/01/J2H1MYE/2022 [Turn over 1 A student attempts to find the density 𝜌𝜌 of aluminium by taking measurements of a rectangular sheet. mass m = 51.6 ± 0.1 g length l = 100.0 ± 0.1 cm width w = 10.0 ± 0.1 cm thickness t = 0.20 ± 0.01 mm He uses the equation 𝜌𝜌 = 𝑚𝑚 𝑤𝑤𝑤𝑤𝑤𝑤 to calculate the density. What is the calculated value of density with its uncertainty? A 0.26 ± 0.01 g cm–3 B 0.26 ± 0.02 g cm–3 C 2.6 ± 0.1 g cm–3 D 2.6 ± 0.2 g cm–3 2 The speed 𝑣𝑣 of a liquid leaving a tube depends on the change in pressure ΔP and the density ρ of the liquid. The speed is given by the equation 𝑣𝑣 = 𝑘𝑘 �∆𝑃𝑃 𝜌𝜌 � 𝑛𝑛 where k is a constant that has no units. What is the value of n ? A 1 2 B 1 C 3 2 D 2 3 A steel rule can be read to the nearest millimeter. It is used to measure the length of a bar whose true length is 895 mm. Repeated measurements give the following readings: Length/mm 892, 891, 892, 891, 891, 892 Are the readings accurate and precise to within 1 mm? Results are accurate to with