# Nov07

Topics: Mass, Energy, Potential energy Pages: 17 (3022 words) Published: August 15, 2013
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level

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9702/01

PHYSICS Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet Soft Clean Eraser Soft pencil (type B or HB is recommended)

October/November 2007 1 hour

*1945541248*

This document consists of 18 printed pages and 2 blank pages. IB07 11_9702_01/3RP © UCLES 2007

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2 Data speed of light in free space, 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, c = 3.00 × 108 m s–1 µ0 = 4π × 10–7 H m–1 ε0 = 8.85 × 10–12 F m–1 e = 1.60 × 10–19 C h = 6.63 × 10–34 J s u = 1.66 × 10–27 kg me = 9.11 × 10–31 kg mp = 1.67 × 10–27 kg R = 8.31 J K–1 mol–1 NA = 6.02 × 1023 mol–1 k = 1.38 × 10–23 J K–1 G = 6.67 × 10–11 N m2 kg–2 g = 9.81 m s–2

9702/01/O/N/07

3 Formulae uniformly accelerated motion, s = ut +
1 2

at 2

v2 = u2 + 2as work done on/by a gas, gravitational potential, hydrostatic pressure, pressure of an ideal gas, simple harmonic motion, velocity of particle in s.h.m., W = p∆V φ = – Gm r p = ρgh p= 1 3

Nm V

a = – ω 2x v = v0 cos ωt
2 v = ± ω √( x 0 – x2)

electric potential, capacitors in series, capacitors in parallel, energy of charged capacitor, resistors in series, resistors in parallel, alternating current/voltage, radioactive decay, decay constant,

V=

Q 4 πε 0r

1 / C = 1 / C1 + 1 / C2 + . . . C = C1 + C2 + . . . W=
1 2

QV

R = R1 + R2 + . . . 1 / R = 1 / R1 + 1 / R2 + . . . x = x0 sin ωt x = x0 exp(–λt) λ = 0.693 t1 2

9702/01/O/N/07

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4 1 The equation relating pressure and density is p = ρgh. How can both sides of this equation be written in terms of base units? A B C D 2 [N m–1] = [kg m–3] [m s–1] [m] [N m–2] = [kg m–3] [m s–2] [m] [kg m–1 s–2] = [kg m–3] [m s–2] [m] [kg m–1 s–1] = [kg m–1] [m s–2] [m]

What is a reasonable estimate of the diameter of an alpha particle? A 10–15 m B 10–12 m C 10–9 m D 10–6 m

3

The diagram shows two vectors X and Y.

X

Y

In which vector triangle does the vector Z show the magnitude and direction of vector X–Y?

A

B

Y Z X Z X

Y

C X Z Y Y

D X Z

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5 4 A series of measurements of the acceleration of free fall g is shown in the table. Which set of results is precise but not accurate? g / m s–2 A B C D 5 9.81 9.81 9.45 8.45 9.79 10.12 9.21 8.46 9.84 9.89 8.99 8.50 9.83 8.94 8.76 8.41 9.79 9.42 8.51 8.47

A mass m has acceleration a. It moves through a distance s in time t. The power used in accelerating the mass is equal to the product of force and velocity. The percentage uncertainties are 0.1 % in m, 1 % in a, 1.5 % in s, 0.5 % in t. What is the percentage uncertainty in the average power? A 2.1 % B 2.6 % C 3.1 % D 4.1 %

9702/01/O/N/07

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6 6 The diagram shows the graduations of a correctly calibrated ammeter. When the current is zero, the pointer is at 0. 0 1 2 3 45

The ammeter is...