June 2010 (v2) QP - Paper 1 CIE Physics A-level.pdf - PMT UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced

# June 2010 (v2) QP - Paper 1 CIE Physics A-level.pdf - PMT...

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2 © UCLES 2010 9702/12/M/J/10 Data speed of light in free space, c = 3.00 × 10 8 m s 1 permeability of free space, μ 0 = 4 π × 10 7 H m 1 permittivity of free space, ε 0 = 8.85 × 10 12 F m 1 elementary charge, e = 1.60 × 10 19 C the Planck constant, h = 6.63 × 10 34 J s unified atomic mass constant, u = 1.66 × 10 27 kg rest mass of electron, m e = 9.11 × 10 31 kg rest mass of proton, m p = 1.67 × 10 27 kg molar gas constant, R = 8.31 J K 1 mol 1 the Avogadro constant, N A = 6.02 × 10 23 mol 1 the Boltzmann constant, k = 1.38 × 10 23 J K 1 gravitational constant, G = 6.67 × 10 11 N m 2 kg 2 acceleration of free fall, g = 9.81 m s 2 PMT
3 © UCLES 2010 9702/12/M/J/10 [Turn over Formulae uniformly accelerated motion, s = ut + 2 2 1 at v 2 = u 2 + 2 as work done on/by a gas, W = p V gravitational potential, φ = – r Gm hydrostatic pressure, p = ρ gh pressure of an ideal gas, p = V Nm 3 1 < c 2 > simple harmonic motion, a = – ω 2 x velocity of particle in s.h.m., v = v 0 cos ω t v = ± ω 2 2 0 x x electric potential, V = r Q 0 4 ε π capacitors in series, 1 / C = 1 / C 1 + 1 / C 2 + . . . capacitors in parallel, C = C 1 + C 2 + . . . energy of charged capacitor, W = QV 2 1 resistors in series, R = R 1 + R 2 + . . . resistors in parallel, 1 / R = 1 / R 1 + 1 / R 2 + . . . alternating current/voltage, x = x 0 sin ω t radioactive decay, x = x 0 exp(– λ t ) decay constant, λ = 2 1 0.693 t PMT
4 © UCLES 2010 9702/12/M/J/10 1 A micrometer screw gauge is used to measure the diameter of a copper wire. The reading with the wire in position is shown in diagram 1. The wire is removed and the jaws of the micrometer are closed. The new reading is shown in diagram 2. diagram 1 diagram 2 10 20 15 5 15 10 0 0 What is the diameter of the wire? A 1.90 mm B 2.45 mm C 2.59 mm D 2.73 mm 2 The S I unit for potential difference (the volt) is given, in base units, by A kg m A 1 s 3 . B m 2 A 1 s 2 . C kg m 2 s 2 . D kg m 2 A 1 s 3 .

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