AS PHYSICS
7407/1 ACTUAL
2025 PAPER
MERGED WITH
MARK SCHEME
Paper 1
Please write clearly in block capitals.
Candidate number
Centre number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS PHYSICS
Paper 1
Wednesday 14 May 2025 Morning Time allowed: 1 hour 30 minutes
For Examiner’s Use
Materials Question Mark
For this paper you must have:
• a pencil and a ruler 1
• a scientific calculator • a Data and Formulae Booklet • a protractor. 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
7
TOTAL
, 2
Do not
write
outside the
box
• You must answer the questions in the spaces provided. Do not write outside the box around each
page or on blank pages.
• 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.
*
JUN257407101* tyrionpapers.com 7407/1
IB/M/Jun25/G4003/V3
Answer all questions in the spaces provided.
tyrionpapers.com
IB/M/Jun25/7407/1
, 3
Do not
write
outside the
box
0 1 Hydrogen has three naturally occurring isotopes. One of these isotopes is
0 1
hydrogen-3 (13H) .
. 1 Calculate the specific charge of a nucleus of hydrogen-3.
[2 marks]
−1 specific charge = C kg
0 1 .2 The specific charge of the hydrogen-3 nucleus is less than the specific charges of the
nuclei of the other two isotopes.
Suggest why.
[2 marks]
Turn over ►
tyrionpapers.com
IB/M/Jun25/7407/1
, 4
Do not
write
outside the
box
*02*
tyrionpapers.com
IB/M/Jun25/7407/1
7407/1 ACTUAL
2025 PAPER
MERGED WITH
MARK SCHEME
Paper 1
Please write clearly in block capitals.
Candidate number
Centre number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS PHYSICS
Paper 1
Wednesday 14 May 2025 Morning Time allowed: 1 hour 30 minutes
For Examiner’s Use
Materials Question Mark
For this paper you must have:
• a pencil and a ruler 1
• a scientific calculator • a Data and Formulae Booklet • a protractor. 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
7
TOTAL
, 2
Do not
write
outside the
box
• You must answer the questions in the spaces provided. Do not write outside the box around each
page or on blank pages.
• 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.
*
JUN257407101* tyrionpapers.com 7407/1
IB/M/Jun25/G4003/V3
Answer all questions in the spaces provided.
tyrionpapers.com
IB/M/Jun25/7407/1
, 3
Do not
write
outside the
box
0 1 Hydrogen has three naturally occurring isotopes. One of these isotopes is
0 1
hydrogen-3 (13H) .
. 1 Calculate the specific charge of a nucleus of hydrogen-3.
[2 marks]
−1 specific charge = C kg
0 1 .2 The specific charge of the hydrogen-3 nucleus is less than the specific charges of the
nuclei of the other two isotopes.
Suggest why.
[2 marks]
Turn over ►
tyrionpapers.com
IB/M/Jun25/7407/1
, 4
Do not
write
outside the
box
*02*
tyrionpapers.com
IB/M/Jun25/7407/1
