EJC 2022 Prelim P2

©EJC 2022 9749/02/J2H2Prelim/2022 [Turn over EUNOIA JUNIOR COLLEGE JC2 PRELIMINARY EXAMINATIONS 2022 General Certificate of Education Advanced Level Higher 2 CANDIDATE NAME CIVICS GROUP 2 1 - REGISTRATION NUMBER PHYSICS Paper 2 Structured Questions 9749/02 August/September 2022 2 hours Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your name, civics group and registration number on all the work you hand in. 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 staples, paper clips, glue or correction fluid. The use of an approved scientific calculator is expected where appropriate. Answer all questions. 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 no blank page. For Examiner’s Use 1 7 2 5 3 8 4 9 5 10 6 8 7 8 8 25 s.f. Total 80

2 ©EJC 2022 9749/02/J2H2Prelim/2022 Data speed of light in free space, ( )( ) 81 71 0 12 1 0 91 19 34 27 31 e 27 p 11 23 1 A 23 1 7 10 m s 10 H m 10 F m 10 F m 10 C 6 63 10 J s 1 66 10 kg 10 kg 10 kg J K mol 60 1 2 10 3 00 4 8 85 1 36 60 9 11 0 16 8 31 13 o 8 ml 1 J K c. . / e. . . R. N k. G h. u. m m .    − −− −− −− − − − − − −− − −−      = =   = = = = =  = = = = =  11 2 2 2 10 N m 8 kg m s 6 67 1 9 . g. −− − =  = permeability of free space, permittivity of free space, elementary charge, the Planck constant, unified atomic mass constant, rest mass of electron, rest mass of proton, molar gas constant, the Avogadro constant, the Boltzmann constant, gravitational constant, acceleration of free fall,

3 ©EJC 2022 9749/02/J2H2Prelim/2022 [Turn over Formulae uniformly accelerated motion, ( ) ( ) 2 22 2 0 0 22 0 12 12 0 0 0 0 0 0 1 2 1 2 2 / K / C 273 15 1 3 3 2 sin cos 1 1 1 4 sin 2 2 exp ln2 at u as V p gh Gm r T T . Nmpc V kT x x t v v t xx R / R / R / R QV r x x t B d NB r s ut v Wp t E Bn t Anvq RR xx              =+  = =− =  + = = = = − ++ = + + = = = = = − = =+ = = = = = I I I I work done on/by a gas, hydrostatic pressure, gravitational potential, temperature, pressure of an ideal gas, mean translational kinetic energy of an ideal gas molecule displacement of particle in s.h.m. velocity of particle in s.h.m. electric current, resistors in series, resistors in parallel, electric potential, alternating current/voltage, magnetic flux density due to a long straight wire magnetic flux density due to a flat circular coil magnetic flux density due to a long solenoid radioactive decay, decay constant

4 ©EJC 2022 9749/02/J2H2Prelim/2022 1 A uniform metal rod AB of mass 1.2 kg and length 0.40 m is pivoted at end A. End B is suspended b