Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS AQA A LEVEL PHYSICS PAPER 1 MAY
Paper 1 2020
Monday 18 May 2020 Afternoon Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
• a pencil and a ruler Question Mark
• a scientific calculator 1
• a Data and Formulae Booklet. 2
3
Instructions
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page. 5
• Answer all questions. 6–30
• You must answer the questions in the spaces provided. Do 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 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.
*JUN207408101*
IB/M/Jun20/E11 7408/1
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 . 1 Determine whether the following reaction is a possible decay for the neutral pion π0.
π0 → e− + μ+ + ve
[2 marks]
0 1 . 2 State the two possible quark configurations of a π0.
[1 mark]
1
2
0 1 . 3 ����
A student suggests that the kaon K0 and the anti-kaon K0 are the same particle.
Discuss whether this suggestion is correct.
[2 marks]
*02*
IB/M/Jun20/7408/1
, 3
Do not write
outside the
0 1 . 4 The nucleus is held together by a force. It was predicted that a particle exists that is box
responsible for this force. The particle itself must experience this force.
The particle would have a rest energy between that of an electron and half that of a
nucleon.
Discuss whether a kaon, a muon and a pion each have the properties of the predicted
particle.
Information about these three particles is in the Data and Formulae Booklet.
[4 marks]
9
Turn over for the next question
Turn over ►
*03*
IB/M/Jun20/7408/1
, 4
Do not write
outside the
0 2 Figure 1 shows an arrangement used to investigate the photoelectric effect. box
Figure 1
A current is measured on the microammeter only when electromagnetic radiation with
a frequency greater than a certain value is incident on the photoemissive surface.
0 2 . 1 Explain why the frequency of the electromagnetic radiation must be greater than a
certain value.
[2 marks]
*04*
IB/M/Jun20/7408/1
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS AQA A LEVEL PHYSICS PAPER 1 MAY
Paper 1 2020
Monday 18 May 2020 Afternoon Time allowed: 2 hours
Materials For Examiner’s Use
For this paper you must have:
• a pencil and a ruler Question Mark
• a scientific calculator 1
• a Data and Formulae Booklet. 2
3
Instructions
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page. 5
• Answer all questions. 6–30
• You must answer the questions in the spaces provided. Do 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 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.
*JUN207408101*
IB/M/Jun20/E11 7408/1
, 2
Do not write
outside the
Section A box
Answer all questions in this section.
0 1 . 1 Determine whether the following reaction is a possible decay for the neutral pion π0.
π0 → e− + μ+ + ve
[2 marks]
0 1 . 2 State the two possible quark configurations of a π0.
[1 mark]
1
2
0 1 . 3 ����
A student suggests that the kaon K0 and the anti-kaon K0 are the same particle.
Discuss whether this suggestion is correct.
[2 marks]
*02*
IB/M/Jun20/7408/1
, 3
Do not write
outside the
0 1 . 4 The nucleus is held together by a force. It was predicted that a particle exists that is box
responsible for this force. The particle itself must experience this force.
The particle would have a rest energy between that of an electron and half that of a
nucleon.
Discuss whether a kaon, a muon and a pion each have the properties of the predicted
particle.
Information about these three particles is in the Data and Formulae Booklet.
[4 marks]
9
Turn over for the next question
Turn over ►
*03*
IB/M/Jun20/7408/1
, 4
Do not write
outside the
0 2 Figure 1 shows an arrangement used to investigate the photoelectric effect. box
Figure 1
A current is measured on the microammeter only when electromagnetic radiation with
a frequency greater than a certain value is incident on the photoemissive surface.
0 2 . 1 Explain why the frequency of the electromagnetic radiation must be greater than a
certain value.
[2 marks]
*04*
IB/M/Jun20/7408/1
