June 2014 (v2) QP - Paper 1 CIE Physics A-level.pdf - PMT Cambridge International Examinations Cambridge International Advanced Subsidiary and Advanced

# June 2014 (v2) QP - Paper 1 CIE Physics A-level.pdf - PMT...

This preview shows page 1 - 6 out of 32 pages. 2 © UCLES 2014 9702/12/M/J/14 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 ( 0 4 1 ε π = 8.99 × 10 9 m F –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 2014 9702/12/M/J/14 [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 2014 9702/12/M/J/14 1 The maximum theoretical power P of a wind turbine is given by the equation P = k ρ Av n where ρ is the density of air, A is the area swept by the turbine blades, v is the speed of the air and k is a constant with no units. What is the value of n ? A 1 B 2 C 3 D 4 2 What is the unit of resistance when expressed in S I base units? A kg m 2 s –2 A –1 B kg m 2 s –3 A –2 C kg m s –2 A –1 D kg m s –3 A –1 Space for working PMT 5 © UCLES 2014 9702/12/M/J/14 [Turn over 3 A cathode-ray oscilloscope (c.r.o.) is connected to an alternating voltage. The following trace is produced on the screen.  #### You've reached the end of your free preview.

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