EJC Physics 2024 J2 H1 MYE QP

©EJC 2024 8867/J2H1MYE2024 [Turn over EUNOIA JUNIOR COLLEGE JC2 MID YEAR EXAMINATIONS 2024 General Certificate of Education Advanced Level Higher 1 CANDIDATE NAME CIVICS GROUP 2 3 - REGISTRATION NUMBER PHYSICS Structured Questions 8867/02 June 2024 2 hours READ THESE INSTRUCTIONS FIRST Write your name, civics group and registration number on all the work you hand in. The use of an approved scientific calculator is expected where appropriate. Write in dark blue or black pen on both sides of the paper. You may use an HB pencil for any diagrams or graphs. Do not use paper clips, highlighters, glue or correction fluid. Section A Answer all questions from this section. Section B Answer one question from this section. The number of marks is given in brackets [ ] at the end of each question or part question. This document consists of 24 printed pages and 0 blank page. For Examiner’s Use Q1 9 Q2 7 Q3 8 Q4 8 Q5 10 Q6 8 Q7 10 Q8 20 Q9 20 Total 80

2 ©EJC 2024 8867/J2H1MYE2024 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 2024 8867/J2H1MYE2024 [Turn over Section A Answer all the questions in this section in the spaces provided. 1 (a) The volume of a cone, V, can be calculated using the formula 21 3π=V rh where r is the radius of its base and h is its height. In an experiment, a metal cone is measured with a mass m of (0.170 ± 0.001) kg and a height of (12.0 ± 0.1) cm. It has a circular base with diameter d of (5.00 ± 0.02) cm. Determine the density of the cone with its actual uncertainty. density of cone = (………………… ± ………….) kg m −3 [4]

4 ©EJC 2024 8867/J2H1MYE2024 (b) Two masses A and B are allowed to slide down a frictionless slope as shown in Fig. 1.1 below. Fig 1.1 Explain if there would be normal contact force between the surface of block A and B. ............................................................................................................................................... ...........................................................................................................................................[1] (c) The two masses are now pushed along a horizontal frictionless surf