Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
Paper 1
Tuesday 12 May 2020 Morning Time allowed: 1 hour 30 minutes
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
Instructions 3
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write 6
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 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*jun207407101*
IB/M/Jun20/E8 7407/1
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 One strong interaction that occurs when two high-energy protons collide is
p + p → p + π+ + π− + X
0 1 . 1 Determine the lepton number, strangeness and charge of particle X.
[2 marks]
lepton number =
strangeness =
charge =
0 1 . 2 Identify particle X.
[1 mark]
*02*
IB/M/Jun20/7407/1
, 3
Do not write
outside the
0 1 . 3 A possible decay of a negative pion is box
π − → e− + Y
What is particle Y?
Tick () one box.
[1 mark]
ν�e
ve
π0
1
0n
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun20/7407/1
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS
PHYSICS
Paper 1
Tuesday 12 May 2020 Morning Time allowed: 1 hour 30 minutes
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
Instructions 3
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write 6
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 70.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
*jun207407101*
IB/M/Jun20/E8 7407/1
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 One strong interaction that occurs when two high-energy protons collide is
p + p → p + π+ + π− + X
0 1 . 1 Determine the lepton number, strangeness and charge of particle X.
[2 marks]
lepton number =
strangeness =
charge =
0 1 . 2 Identify particle X.
[1 mark]
*02*
IB/M/Jun20/7407/1
, 3
Do not write
outside the
0 1 . 3 A possible decay of a negative pion is box
π − → e− + Y
What is particle Y?
Tick () one box.
[1 mark]
ν�e
ve
π0
1
0n
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun20/7407/1
