# Nov07

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*

READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Centre number and candidate number on the Answer Sheet in the spaces provided unless this has been done for you. There are forty questions on this paper. Answer all questions. For each question there are four possible answers A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate Answer Sheet. Read the instructions on the Answer Sheet very carefully. Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet.

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

© UCLES 2007

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

© UCLES 2007

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

© UCLES 2007

9702/01/O/N/07

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 %

© UCLES 2007

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...

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