Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
COMPUTER SCIENCE
Paper 1 Computational thinking and programming skills – Python
Monday 12 May 2025 Afternoon Time allowed: 2 hours
Materials For Examiner’s Use
There are no additional materials required for this paper.
You must not use a calculator. Question Mark
Instructions 1
Use black ink or black ball-point pen. Use pencil only for drawing. 2
Answer all questions.
3
You must answer the questions in the spaces provided.
If you need extra space for your answer(s), use the lined pages at 4
the end of this book. Write the question number against your 5
answer(s).
6
Do all rough work in this book. Cross through any work you do
not want to be marked. 7
Questions that require a coded solution must be answered in Python. 8–9
You should assume that all indexing in code starts at 0 unless stated otherwise.
10
Information 11
The total number of marks available for this paper is 90.
TOTAL
Advice
For the multiple-choice questions, completely fill in the lozenge alongside the appropriate answer.
CORRECT METHOD WRONG METHODS
If you want to change your answer you must cross out your original answer as shown.
If you wish to return to an answer previously crossed out, ring the answer you now wish to select as shown.
for more:
IB/G/Jun25/G4003/E11
,tyri onp ape rs. com
8 5 2 5 /1B
, 2
Do not write
outside the
Answer all box
questions.
0 1 Figure 1 shows a program written in Python.
Line numbers are included but are not part of the program.
Figure 1
1 # Python program
2 a = 1
3 b = 1
4 c = 5
5 while b < c:
6 a = a + a
7 b = b + 1
8 print(a)
0 1 .1 Where is an arithmetic operation first used in the program in
Figure 1? Shade one lozenge.
[1 mark]
A Line number 1
B Line number 5
C Line number 6
D Line number 8
0 1 .2 Which of the following is a false statement about the program in
Figure 1? Shade one lozenge.
[1 mark]
A This program contains a comment.
B This program uses assignment.
C This program uses concatenation.
D This program uses iteration.
for more: tyrionpapers.com
IB/G/
Jun25/8525/1B
, 3
Do not write
outside the
0 1 . 3 State the relational operator used in the program in box
Figure 1. [1 mark]
0 1 .4 Complete the trace table for the program in
Figure 1. You may not need to use all the rows
[4 marks]
in the table.
a b c Output
7
Turn over for the next question
for more: tyrionpapers.com
IB/G/
Jun25/8525/1B
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
COMPUTER SCIENCE
Paper 1 Computational thinking and programming skills – Python
Monday 12 May 2025 Afternoon Time allowed: 2 hours
Materials For Examiner’s Use
There are no additional materials required for this paper.
You must not use a calculator. Question Mark
Instructions 1
Use black ink or black ball-point pen. Use pencil only for drawing. 2
Answer all questions.
3
You must answer the questions in the spaces provided.
If you need extra space for your answer(s), use the lined pages at 4
the end of this book. Write the question number against your 5
answer(s).
6
Do all rough work in this book. Cross through any work you do
not want to be marked. 7
Questions that require a coded solution must be answered in Python. 8–9
You should assume that all indexing in code starts at 0 unless stated otherwise.
10
Information 11
The total number of marks available for this paper is 90.
TOTAL
Advice
For the multiple-choice questions, completely fill in the lozenge alongside the appropriate answer.
CORRECT METHOD WRONG METHODS
If you want to change your answer you must cross out your original answer as shown.
If you wish to return to an answer previously crossed out, ring the answer you now wish to select as shown.
for more:
IB/G/Jun25/G4003/E11
,tyri onp ape rs. com
8 5 2 5 /1B
, 2
Do not write
outside the
Answer all box
questions.
0 1 Figure 1 shows a program written in Python.
Line numbers are included but are not part of the program.
Figure 1
1 # Python program
2 a = 1
3 b = 1
4 c = 5
5 while b < c:
6 a = a + a
7 b = b + 1
8 print(a)
0 1 .1 Where is an arithmetic operation first used in the program in
Figure 1? Shade one lozenge.
[1 mark]
A Line number 1
B Line number 5
C Line number 6
D Line number 8
0 1 .2 Which of the following is a false statement about the program in
Figure 1? Shade one lozenge.
[1 mark]
A This program contains a comment.
B This program uses assignment.
C This program uses concatenation.
D This program uses iteration.
for more: tyrionpapers.com
IB/G/
Jun25/8525/1B
, 3
Do not write
outside the
0 1 . 3 State the relational operator used in the program in box
Figure 1. [1 mark]
0 1 .4 Complete the trace table for the program in
Figure 1. You may not need to use all the rows
[4 marks]
in the table.
a b c Output
7
Turn over for the next question
for more: tyrionpapers.com
IB/G/
Jun25/8525/1B
