EJC 2022 J1 H2 PROMO QP PAPER 2

©EJC 2022 9749/J1H2PROMO/2022 [Turn over EUNOIA JUNIOR COLLEGE JC1 PROMO EXAMINATIONS 2022 General Certificate of Education Advanced Level Higher 2 CANDIDATE NAME CIVICS GROUP 2 2 - REGISTRATION NUMBER PHYSICS Structured Questions 9749/02 4th October 2022 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. Answer all questions. 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. 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 4 blank pages. For Examiner’s Use Q1 4 Q2 12 Q3 11 Q4 10 Q5 8 Q6 6 Q7 9 Q8 7 Q9 4 Q10 9 s.f. P2 Total 80

2 ©EJC 2022 9749/J1H2PROMO/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 10 m s 10 H m 10 F m 10 F m 10 C 6 63 10 J s 1 3 00 4 8 85 1 36 1 60 9 11 1 67 66 10 kg 10 kg 10 kg J K mol 6 02 10 8 31 1 38 mol 10 J K c. . / e h. u. m m . . . R. N k . . G ε µπ π − −− −− −− − − − − − −− − −− × × × × × = × = = = × × × = × = = = = = = = × 11 2 2 2 10 N m kg m 67 81 s 6 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/J1H2PROMO/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 111 4 sin 2 2 exp ln2 at u as V p gh Gm r TT . Nmpc V kT xx t vv t xx R /R /R /R QV r xx t B d NB r s ut v Wp t E Bn t Anvq RR xx ρ φ ω ω ω πε ω µ π µ µ λ λ = + ∆ = =− = °+ = = = = ±− ++ =++ = = = = = − = = + = = = = = 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/J1H2PROMO/2022 1 The velocity v of the falling ball can be obtained by using the following equation as shown below. 2 9 ball liquid2 ρρμ= gr v −  In an experiment to d