Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
A-level
PHYSICS
Paper 2
Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
a pencil and a ruler Questio Mark
n
a scientific calculator
1
a Data and Formulae Booklet
a protractor. 2
3
Instructions
4
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page. 5
Answer all questions. 6
You must answer the questions in the spaces provided. Do 7–31
not write outside the box around each page or on blank
pages. TOTAL
If you need extra space for your answer(s), use the lined pages at
**
the end of this book. Write the question number against your IB/M/Jun22/E13
answer(s).
Do all rough work in this book. Cross through any work you do
not want to be marked.
Show all your working.
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 85.
You are expected to use a scientific calculator where appropriate.
A Data and Formulae Booklet is provided as a loose insert.
,7408/2
, 2
Donot
Do notwrite
write
outsidethe
outside the
Section A box
box
Answer all questions in this
section.
0 1 Figure 1 shows an electric steam iron.
Figure 1
Water from a reservoir drips onto an electrically-heated metal plate. The
water boils and steam escapes through holes in the metal plate.
The electrical power of the heater inside the iron is 2.1 kW.
Assume that all the energy from the heater is transferred to the metal plate.
0 1
.1 The metal plate has a mass of 1.2 kg and is initially at a temperature
of 20 °C. The heater is switched on. After a time t the metal plate
reaches its working temperature of 125 °C.
Calculate t.
specific heat capacity of the metal = 450 J kg−1 K−1
[2 marks]
t= s
*02
IB/M/
* Jun22/7408/2
, 3
Do not write
outside the
0 1 .2 The metal plate is maintained at its working box
temperature. Water at 20 °C drips continuously
onto the metal plate. Steam at 100 °C emerges
continuously from the iron.
The maker claims that the iron can generate steam at a rate of
60 g min−1. Determine whether this claim is true.
specific latent heat of vaporisation of water = 2.3 106 J
kg−1 [3
specific heat capacity of water = 4200 J kg K −1 −1
marks]
5
*03
IB/M/
* Jun22/7408/2
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
A-level
PHYSICS
Paper 2
Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
a pencil and a ruler Questio Mark
n
a scientific calculator
1
a Data and Formulae Booklet
a protractor. 2
3
Instructions
4
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page. 5
Answer all questions. 6
You must answer the questions in the spaces provided. Do 7–31
not write outside the box around each page or on blank
pages. TOTAL
If you need extra space for your answer(s), use the lined pages at
**
the end of this book. Write the question number against your IB/M/Jun22/E13
answer(s).
Do all rough work in this book. Cross through any work you do
not want to be marked.
Show all your working.
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 85.
You are expected to use a scientific calculator where appropriate.
A Data and Formulae Booklet is provided as a loose insert.
,7408/2
, 2
Donot
Do notwrite
write
outsidethe
outside the
Section A box
box
Answer all questions in this
section.
0 1 Figure 1 shows an electric steam iron.
Figure 1
Water from a reservoir drips onto an electrically-heated metal plate. The
water boils and steam escapes through holes in the metal plate.
The electrical power of the heater inside the iron is 2.1 kW.
Assume that all the energy from the heater is transferred to the metal plate.
0 1
.1 The metal plate has a mass of 1.2 kg and is initially at a temperature
of 20 °C. The heater is switched on. After a time t the metal plate
reaches its working temperature of 125 °C.
Calculate t.
specific heat capacity of the metal = 450 J kg−1 K−1
[2 marks]
t= s
*02
IB/M/
* Jun22/7408/2
, 3
Do not write
outside the
0 1 .2 The metal plate is maintained at its working box
temperature. Water at 20 °C drips continuously
onto the metal plate. Steam at 100 °C emerges
continuously from the iron.
The maker claims that the iron can generate steam at a rate of
60 g min−1. Determine whether this claim is true.
specific latent heat of vaporisation of water = 2.3 106 J
kg−1 [3
specific heat capacity of water = 4200 J kg K −1 −1
marks]
5
*03
IB/M/
* Jun22/7408/2
