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AQA A Level Physics Paper 1 2019
Question Paper
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
A-level
PHYSICS
Paper 1
Monday 20 May 2019 Afternoon Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
a pencil and a ruler Questio Mark
a scientific calculator n
a Data and Formulae Booklet. 1
2
Instructions 3
Use black ink or black ball-point pen.
4
Fill in the boxes at the top of this page.
Answer all questions. 5
You must answer the questions in the spaces provided. Do 6
not write outside the box around each page or on blank
7
pages.
If you need extra space for your answer(s), use the lined pages at 8–32
the end of this book. Write the question number against your TOTAL
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
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
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.
7408/1
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Guides
2
Do not write outside the box
Section A
Answer all questions in this
section.
125 131
0 1. 1 Two isotopes of iodine are I and I.
53 53
Determine, for these two isotopes, the difference between the constituents
of the
nuclei.
[1 mark]
131
0 1. 2 A I nuclide undergoes beta (β–) decay to form a xenon nuclide.
53
State the nucleon number of the xenon nuclide.
[1 mark]
125
0 1. 3 A I nuclide decays by electron capture to form a tellurium nuclide.
53
State two differences between the constituents of the iodine nucleus and
the tellurium
nucleus it decays into.
[2 marks]
*02
IB/M/
* Jun19/7408/1
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Guides
3
Do not write
outside the
0 1 . 4Internal conversion is a process in which a nucleus in an excited state can box
release its excess energy. In internal conversion all of the excess energy
is transferred from the nucleus to an orbital electron through the
electromagnetic force. This orbital electron is ejected from the atom.
The tellurium nucleus formed in question 01.3 is in an excited state and
can undergo internal conversion.
Discuss three differences between internal conversion and beta (β–) decay.
[3 marks]
1
2
3
7
Turn over for the next question
Turn over ►
*03
IB/M/
* Jun19/7408/1
Guides
AQA A Level Physics Paper 1 2019
Question Paper
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
A-level
PHYSICS
Paper 1
Monday 20 May 2019 Afternoon Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
a pencil and a ruler Questio Mark
a scientific calculator n
a Data and Formulae Booklet. 1
2
Instructions 3
Use black ink or black ball-point pen.
4
Fill in the boxes at the top of this page.
Answer all questions. 5
You must answer the questions in the spaces provided. Do 6
not write outside the box around each page or on blank
7
pages.
If you need extra space for your answer(s), use the lined pages at 8–32
the end of this book. Write the question number against your TOTAL
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
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
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.
7408/1
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
2
Do not write outside the box
Section A
Answer all questions in this
section.
125 131
0 1. 1 Two isotopes of iodine are I and I.
53 53
Determine, for these two isotopes, the difference between the constituents
of the
nuclei.
[1 mark]
131
0 1. 2 A I nuclide undergoes beta (β–) decay to form a xenon nuclide.
53
State the nucleon number of the xenon nuclide.
[1 mark]
125
0 1. 3 A I nuclide decays by electron capture to form a tellurium nuclide.
53
State two differences between the constituents of the iodine nucleus and
the tellurium
nucleus it decays into.
[2 marks]
*02
IB/M/
* Jun19/7408/1
, Stuvia.co.uk - The Marketplace for Revision Notes & Study
Guides
3
Do not write
outside the
0 1 . 4Internal conversion is a process in which a nucleus in an excited state can box
release its excess energy. In internal conversion all of the excess energy
is transferred from the nucleus to an orbital electron through the
electromagnetic force. This orbital electron is ejected from the atom.
The tellurium nucleus formed in question 01.3 is in an excited state and
can undergo internal conversion.
Discuss three differences between internal conversion and beta (β–) decay.
[3 marks]
1
2
3
7
Turn over for the next question
Turn over ►
*03
IB/M/
* Jun19/7408/1
