2024年5月25日发(作者：方小霜)
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Cambridge International Examinations
Cambridge International Advanced Subsidiary and Advanced Level
s
.
c
o
m
*
2
8
6
2
6
7
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9
3
1
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PHYSICS
Paper 2 AS Structured Questions
Candidates answer on the Question Paper.
No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.
Write in dark blue or black pen.
You may use an HB pencil for any diagrams or graphs.
Do not use staples, paper clips, glue or correction fluid.
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
Electronic calculators may be used.
You may lose marks if you do not show your working or if you do not use appropriate units.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part question.
9702/22
October/November 2014
1 hour
This document consists of 14 printed pages and 2 blank pages.
DC (KN/KN) 90401/4
© UCLES 2014
[Turn over
2
Data
speed of light in free space,
permeability of free space,
permittivity of free space,
c = 3.00 × 10
8
ms
–1
μ
0
= 4
π
× 10
–7
Hm
–1
ε
0
= 8.85 × 10
–12
Fm
–1
(
1
= 8.99 × 10
9
m F
–1
)
4π
ε
0
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,
© UCLES 2014
e = 1.60 × 10
–19
C
h = 6.63 × 10
–34
Js
u = 1.66 × 10
–27
kg
m
e
= 9.11 × 10
–31
kg
m
p
= 1.67 × 10
–27
kg
R = 8.31 JK
–1
mol
–1
N
A
= 6.02 × 10
23
mol
–1
k = 1.38 × 10
–23
JK
–1
G = 6.67 × 10
–11
Nm
2
kg
–2
g = 9.81 ms
–2
9702/22/O/N/14
3
Formulae
uniformly accelerated motion,
work done on/by a gas,
gravitational potential,
hydrostatic pressure,
pressure of an ideal gas,
simple harmonic motion,
velocity of particle in ,
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,
© UCLES 2014
s = ut +
at
2
v
2
= u
2
+
2as
W = p
Δ
V
φ
= –
Gm
r
p =
ρ
gh
p =
Nm
V
2 > a = – ω 2 x v = v 0 cos ω t v = ± ω √⎯ ( x 0 2 – x 2 ) V = Q 4 π ε 0 r C = 1/C 1 + 1/C 2 + . . . C = C 1 + C 2 + . . . W = QV R = R 1 + R 2 + . . . R = 1/R 1 + 1/R 2 + . . . x = x 0 sin ω t x = x 0 exp(– λ t) λ = 0.693 t 9702/22/O/N/14 [Turn over 1/ 1/ 4 Answer all the questions in the spaces provided. 1 (a) The Young modulus of the metal of a wire is 1.8 × 10 11 Pa. The wire is extended and the strain produced is 8.2 × 10 –4 . Calculate the stress in GPa. stress = ...................................................GPa [2] (b) An electromagnetic wave has frequency 12 THz. (i) Calculate the wavelength in μm. wavelength = .....................................................μm [2] (ii) State the name of the region of the electromagnetic spectrum for this frequency. .......................................................................................................................................[1] (c) An object B is on a horizontal surface. Two forces act on B in this horizontal plane. A vector diagram for these forces is shown to scale in Fig. 1.1. N 2.5 N B 30° WE S 7.5 N Fig. 1.1 © UCLES 20149702/22/O/N/14 5 A force of 7.5 N towards north and a force of 2.5 N from 30° north of east act on B. The mass of B is 750 g. (i) On Fig. 1.1, draw an arrow to show the approximate direction of the resultant of these two forces. [1] (ii) 1. Show that the magnitude of the resultant force on B is 6.6 N. (iii) © UCLES 2014 [1] 2. Calculate the magnitude of the acceleration of B produced by this resultant force. magnitude = ................................................ m s –2 [2] Determine the angle between the direction of the acceleration and the direction of the 7.5 N force. angle = ........................................................° [1] 9702/22/O/N/14 [Turn over 6 2 A ball is thrown from A to B as shown in Fig. 2.1. V 60° A Fig. 2.1 The ball is thrown with an initial velocity V at 60° to the horizontal. The variation with time t of the vertical component V v of the velocity of the ball from t = 0 to t = 0.60 s is shown in Fig. 2.2. 6.0 V v 4.0 B 2.0 velocity / m s –1 0 00.20.40.60.81.01.21.4 t / s –2.0 –4.0 –6.0 Fig. 2.2 © UCLES 20149702/22/O/N/14 7 Assume air resistance is negligible. [2] (a) (i) Complete Fig. 2.2 for the time until the ball reaches B. (ii) Calculate the maximum height reached by the ball. height = .......................................................m [2] (iii) Calculate the horizontal component V h of the velocity of the ball at time t = 0. V h = .................................................m s −1 [2] (iv) On Fig. 2.2, sketch the variation with t of V h . Label this sketch V h . [1] (b) The ball has mass 0.65 kg. Calculate, for the ball, (i) the maximum kinetic energy, maximum kinetic energy = ........................................................J [3] (ii) the maximum potential energy above the ground. © UCLES 2014 maximum potential energy = ........................................................J [2] 9702/22/O/N/14 [Turn over 8 3 (a) Define electric field strength. ................................................................................................................................................... ...............................................................................................................................................[1] (b) A sphere S has radius 1.2 × 10 –6 m and density 930 kg m −3 . Show that the weight of S is 6.6 × 10 −14 N. [2] (c) Two horizontal metal plates are 14 mm apart in a vacuum. A potential difference (p.d.) of 1.9 kV is applied across the plates, as shown in Fig. 3.1. +1.9 kV metal plate 14 mm sphere S Fig. 3.1 metal plate A uniform electric field is produced between the plates. The sphere S in (b) is charged and is held stationary between the plates by the electric field. (i) Calculate the electric field strength between the plates. electric field strength = .................................................V m −1 [2] © UCLES 20149702/22/O/N/14
2024年5月25日发(作者：方小霜)
w
w
w
t
r
.
X
e
m
e
P
e
r
a
p
Cambridge International Examinations
Cambridge International Advanced Subsidiary and Advanced Level
s
.
c
o
m
*
2
8
6
2
6
7
7
9
3
1
*
PHYSICS
Paper 2 AS Structured Questions
Candidates answer on the Question Paper.
No Additional Materials are required.
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand in.
Write in dark blue or black pen.
You may use an HB pencil for any diagrams or graphs.
Do not use staples, paper clips, glue or correction fluid.
DO NOT WRITE IN ANY BARCODES.
Answer all questions.
Electronic calculators may be used.
You may lose marks if you do not show your working or if you do not use appropriate units.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part question.
9702/22
October/November 2014
1 hour
This document consists of 14 printed pages and 2 blank pages.
DC (KN/KN) 90401/4
© UCLES 2014
[Turn over
2
Data
speed of light in free space,
permeability of free space,
permittivity of free space,
c = 3.00 × 10
8
ms
–1
μ
0
= 4
π
× 10
–7
Hm
–1
ε
0
= 8.85 × 10
–12
Fm
–1
(
1
= 8.99 × 10
9
m F
–1
)
4π
ε
0
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,
© UCLES 2014
e = 1.60 × 10
–19
C
h = 6.63 × 10
–34
Js
u = 1.66 × 10
–27
kg
m
e
= 9.11 × 10
–31
kg
m
p
= 1.67 × 10
–27
kg
R = 8.31 JK
–1
mol
–1
N
A
= 6.02 × 10
23
mol
–1
k = 1.38 × 10
–23
JK
–1
G = 6.67 × 10
–11
Nm
2
kg
–2
g = 9.81 ms
–2
9702/22/O/N/14
3
Formulae
uniformly accelerated motion,
work done on/by a gas,
gravitational potential,
hydrostatic pressure,
pressure of an ideal gas,
simple harmonic motion,
velocity of particle in ,
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,
© UCLES 2014
s = ut +
at
2
v
2
= u
2
+
2as
W = p
Δ
V
φ
= –
Gm
r
p =
ρ
gh
p =
Nm
V
2 > a = – ω 2 x v = v 0 cos ω t v = ± ω √⎯ ( x 0 2 – x 2 ) V = Q 4 π ε 0 r C = 1/C 1 + 1/C 2 + . . . C = C 1 + C 2 + . . . W = QV R = R 1 + R 2 + . . . R = 1/R 1 + 1/R 2 + . . . x = x 0 sin ω t x = x 0 exp(– λ t) λ = 0.693 t 9702/22/O/N/14 [Turn over 1/ 1/ 4 Answer all the questions in the spaces provided. 1 (a) The Young modulus of the metal of a wire is 1.8 × 10 11 Pa. The wire is extended and the strain produced is 8.2 × 10 –4 . Calculate the stress in GPa. stress = ...................................................GPa [2] (b) An electromagnetic wave has frequency 12 THz. (i) Calculate the wavelength in μm. wavelength = .....................................................μm [2] (ii) State the name of the region of the electromagnetic spectrum for this frequency. .......................................................................................................................................[1] (c) An object B is on a horizontal surface. Two forces act on B in this horizontal plane. A vector diagram for these forces is shown to scale in Fig. 1.1. N 2.5 N B 30° WE S 7.5 N Fig. 1.1 © UCLES 20149702/22/O/N/14 5 A force of 7.5 N towards north and a force of 2.5 N from 30° north of east act on B. The mass of B is 750 g. (i) On Fig. 1.1, draw an arrow to show the approximate direction of the resultant of these two forces. [1] (ii) 1. Show that the magnitude of the resultant force on B is 6.6 N. (iii) © UCLES 2014 [1] 2. Calculate the magnitude of the acceleration of B produced by this resultant force. magnitude = ................................................ m s –2 [2] Determine the angle between the direction of the acceleration and the direction of the 7.5 N force. angle = ........................................................° [1] 9702/22/O/N/14 [Turn over 6 2 A ball is thrown from A to B as shown in Fig. 2.1. V 60° A Fig. 2.1 The ball is thrown with an initial velocity V at 60° to the horizontal. The variation with time t of the vertical component V v of the velocity of the ball from t = 0 to t = 0.60 s is shown in Fig. 2.2. 6.0 V v 4.0 B 2.0 velocity / m s –1 0 00.20.40.60.81.01.21.4 t / s –2.0 –4.0 –6.0 Fig. 2.2 © UCLES 20149702/22/O/N/14 7 Assume air resistance is negligible. [2] (a) (i) Complete Fig. 2.2 for the time until the ball reaches B. (ii) Calculate the maximum height reached by the ball. height = .......................................................m [2] (iii) Calculate the horizontal component V h of the velocity of the ball at time t = 0. V h = .................................................m s −1 [2] (iv) On Fig. 2.2, sketch the variation with t of V h . Label this sketch V h . [1] (b) The ball has mass 0.65 kg. Calculate, for the ball, (i) the maximum kinetic energy, maximum kinetic energy = ........................................................J [3] (ii) the maximum potential energy above the ground. © UCLES 2014 maximum potential energy = ........................................................J [2] 9702/22/O/N/14 [Turn over 8 3 (a) Define electric field strength. ................................................................................................................................................... ...............................................................................................................................................[1] (b) A sphere S has radius 1.2 × 10 –6 m and density 930 kg m −3 . Show that the weight of S is 6.6 × 10 −14 N. [2] (c) Two horizontal metal plates are 14 mm apart in a vacuum. A potential difference (p.d.) of 1.9 kV is applied across the plates, as shown in Fig. 3.1. +1.9 kV metal plate 14 mm sphere S Fig. 3.1 metal plate A uniform electric field is produced between the plates. The sphere S in (b) is charged and is held stationary between the plates by the electric field. (i) Calculate the electric field strength between the plates. electric field strength = .................................................V m −1 [2] © UCLES 20149702/22/O/N/14