Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Wednesday 14 May 2025
Morning (Time: 1 hour 30 minutes) Paper
reference WPH12/01
Physics
International Advanced Subsidiary/Advanced Level
UNIT 2: Waves and Electricity
You must have: Total Marks
Scientific calculator, ruler, protractor
Instructions:
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
• Show all your working out in calculations and include units where appropriate.
Information:
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Into the question marked with an asterisk (*), marks will be awarded for your ability
structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
• The list of data, formulae and relationships is printed at the end of this booklet.
Advice:
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end. Turn over
P78754A
©2025 Pearson Education Ltd.
Y:1/1/1/
*P78754A0128*
, SECTION A
Answer ALL questions.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
For questions 1–10, in Section A, select one answer from A to D and put a cross in the box . If you
change your mind, put a line through the box and then mark your new answer with a cross .
1: The refractive index of vegetable oil is 1.47
Which of the following is the speed of light, in m s–1, in vegetable oil?
A 1.59 × 108
B 2.04 × 108
C 3.00 × 108
D 4.41 × 108
(Total for Question 1 = 1 mark)
2: A ray of light is incident on the boundary between Perspex and air, as shown.
The angle of incidence i is greater than the critical angle for the Perspex-air boundary.
air
i
Perspex
Which of the following statements is correct for the Perspex-air boundary?
A All the light is refracted.
B All the light is transmitted.
C All the light is reflected.
D Some light is reflected and some light is refracted.
(Total for Question 2 = 1 mark)
2
*P78754A0228*
, 3: Which of the following units is equivalent to the coulomb?
A A s–1
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
B J V –1
C W A–1
D W V –1
(Total for Question 3 = 1 mark)
4: A student sets up the apparatus shown.
stand length l pulley
string
mass m
When the string is plucked, it vibrates with a frequency f.
Which of the following single changes would increase f ?
A decreasing the length l
B decreasing the mass m
C increasing the cross-sectional area of the string
D increasing the mass per unit length of the string
(Total for Question 4 = 1 mark)
3
*P78754A0328* Turn over
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Wednesday 14 May 2025
Morning (Time: 1 hour 30 minutes) Paper
reference WPH12/01
Physics
International Advanced Subsidiary/Advanced Level
UNIT 2: Waves and Electricity
You must have: Total Marks
Scientific calculator, ruler, protractor
Instructions:
•• Use black ink or ball-point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
• Show all your working out in calculations and include units where appropriate.
Information:
•• The total mark for this paper is 80.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Into the question marked with an asterisk (*), marks will be awarded for your ability
structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
• The list of data, formulae and relationships is printed at the end of this booklet.
Advice:
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end. Turn over
P78754A
©2025 Pearson Education Ltd.
Y:1/1/1/
*P78754A0128*
, SECTION A
Answer ALL questions.
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
For questions 1–10, in Section A, select one answer from A to D and put a cross in the box . If you
change your mind, put a line through the box and then mark your new answer with a cross .
1: The refractive index of vegetable oil is 1.47
Which of the following is the speed of light, in m s–1, in vegetable oil?
A 1.59 × 108
B 2.04 × 108
C 3.00 × 108
D 4.41 × 108
(Total for Question 1 = 1 mark)
2: A ray of light is incident on the boundary between Perspex and air, as shown.
The angle of incidence i is greater than the critical angle for the Perspex-air boundary.
air
i
Perspex
Which of the following statements is correct for the Perspex-air boundary?
A All the light is refracted.
B All the light is transmitted.
C All the light is reflected.
D Some light is reflected and some light is refracted.
(Total for Question 2 = 1 mark)
2
*P78754A0228*
, 3: Which of the following units is equivalent to the coulomb?
A A s–1
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
B J V –1
C W A–1
D W V –1
(Total for Question 3 = 1 mark)
4: A student sets up the apparatus shown.
stand length l pulley
string
mass m
When the string is plucked, it vibrates with a frequency f.
Which of the following single changes would increase f ?
A decreasing the length l
B decreasing the mass m
C increasing the cross-sectional area of the string
D increasing the mass per unit length of the string
(Total for Question 4 = 1 mark)
3
*P78754A0328* Turn over
