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A-level PHYSICS
Paper 1
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 • a Data and Formulae Booklet • a protractor. 1
2
Instructions
• Use black ink or black ball-point pen. 3
• Fill in the boxes at the top of this page.
4
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside the 5
box around each page or on blank pages.
6
• 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 7–31
marked.
TOTAL
• 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.
*JUN217408101* 7408/1
IB/M/Jun21/E8
,
, 2
Section A
Answer all questions in this section.
0 1 Cosmic rays are high-energy particles that come from space. Most of these particles
are protons. There are other particles in cosmic rays, including atomic nuclei.
Table 1 gives the data for one particular nucleus X.
Table 1
Mass / kg 8.02 × 10−26
Specific charge / C kg−1 4.39 × 107
Kinetic energy / MeV 215
0 1
.1 Determine the number of neutrons in nucleus X.
[3 marks]
number of neutrons =
0 1
.2 Calculate the speed of X.
Ignore relativistic effects.
[3 marks]
Do not write Do not write outside the outside the boxbox
IB/M/Jun21/7408/1 Distribution
o
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
Paper 1
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 • a Data and Formulae Booklet • a protractor. 1
2
Instructions
• Use black ink or black ball-point pen. 3
• Fill in the boxes at the top of this page.
4
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write outside the 5
box around each page or on blank pages.
6
• 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 7–31
marked.
TOTAL
• 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.
*JUN217408101* 7408/1
IB/M/Jun21/E8
,
, 2
Section A
Answer all questions in this section.
0 1 Cosmic rays are high-energy particles that come from space. Most of these particles
are protons. There are other particles in cosmic rays, including atomic nuclei.
Table 1 gives the data for one particular nucleus X.
Table 1
Mass / kg 8.02 × 10−26
Specific charge / C kg−1 4.39 × 107
Kinetic energy / MeV 215
0 1
.1 Determine the number of neutrons in nucleus X.
[3 marks]
number of neutrons =
0 1
.2 Calculate the speed of X.
Ignore relativistic effects.
[3 marks]
Do not write Do not write outside the outside the boxbox
IB/M/Jun21/7408/1 Distribution
o
