Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Thursday 22 May 2025
Morning (Time: 1 hour 45 minutes) Paper
reference 1PH0/1H
Physics
PAPER 1
Higher Tier
You must have: Total Marks
Calculator, ruler, Equation Booklet (enclosed)
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in one of the four boxes . If you change your
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
mind about an answer, put a line through the box and then mark your new answer with
a cross .
1 This question is about both infrasound and ultrasound.
(a) Which of these is a frequency of infrasound?
(1)
A 2.2 Hz
B 2.2 kHz
C 22 Hz
D 22 kHz
(b) Figure 1 shows a technician standing in front of a wall.
wall
technician
7.6 m
Figure 1
The technician has a device that can emit and detect ultrasound.
The device emits a pulse of ultrasound towards the wall and detects the echo of
the pulse a short time later.
The wall is 7.6 m from the device.
The speed of ultrasound in air is 330 m / s.
Calculate the time between the emission of the pulse and the detection of
the echo.
(3)
time = ............................. ................ . . . . . . . . . . . . . . . . . s
2
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, (c) Explain why humans cannot hear infrasound.
(2)
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. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
(Total for Question 1 = 6 marks)
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*P78729RA0436*
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Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Thursday 22 May 2025
Morning (Time: 1 hour 45 minutes) Paper
reference 1PH0/1H
Physics
PAPER 1
Higher Tier
You must have: Total Marks
Calculator, ruler, Equation Booklet (enclosed)
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in one of the four boxes . If you change your
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
mind about an answer, put a line through the box and then mark your new answer with
a cross .
1 This question is about both infrasound and ultrasound.
(a) Which of these is a frequency of infrasound?
(1)
A 2.2 Hz
B 2.2 kHz
C 22 Hz
D 22 kHz
(b) Figure 1 shows a technician standing in front of a wall.
wall
technician
7.6 m
Figure 1
The technician has a device that can emit and detect ultrasound.
The device emits a pulse of ultrasound towards the wall and detects the echo of
the pulse a short time later.
The wall is 7.6 m from the device.
The speed of ultrasound in air is 330 m / s.
Calculate the time between the emission of the pulse and the detection of
the echo.
(3)
time = ............................. ................ . . . . . . . . . . . . . . . . . s
2
*P78729RA0236*
, (c) Explain why humans cannot hear infrasound.
(2)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ ................ . . . . . . . . . . . . . . . . . . . .
(Total for Question 1 = 6 marks)
3
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*P78729RA0436*
BLANK PAGE
4
