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Oxford Cambridge and RSA
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AS-Level OCR 2025 Physics B Paper 1
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Wednesday 14 May 2025 – Morning
AS Level Physics B (Advancing Physics)
H157/01 Foundations of physics
Time allowed: 1 hour 30 minutes
1
Turn over
, 2
Section A
You should spend a maximum of 25 minutes on this section.
Write your answer to each question in the box provided.
1 The power rating of a device is defined as the typical amount of:
A Electricity used in 1 second
B Energy transferred in 1 second
C Energy wasted by the device in 1 second
D Time taken to transfer 1 joule of energy
Your answer
[1]
2 The diagram shows two rays of light passing through a converging lens.
z
The distance z is called the:
A Focal length
B Focus
C Image length
D Power
Your answer
[1]
© OCR 2025
, 3
3 Which point is best considered an outlier or anomaly?
y
D
C
A
B
0 x
0
Your answer
[1]
4 An analogue signal has amplitude 80 mV and picks up noise of amplitude 5 mV.
The number of useful quantisation levels needed to digitise this signal is equal to:
A log 80
2
5
B log 85
2
5
C log10 80
5
D log10 85
5
Your answer
[1]
5 A typical value for the linear magnification achieved by a light microscope used in a secondary
school is:
A 10–6
B 10–2
C 102
D 106
Your answer
[1]
© OCR 2025 Turn over
Oxford Cambridge and RSA
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Yvygb uiugyvb kgdvshbksj siuys bndw872y wqsozb fbejwe8e73yehbw mcmid7yvhebwdsd9cdoibw wdow8d7yd
AS-Level OCR 2025 Physics B Paper 1
Jdvdgv sdjus shdusdsbd sbdsdvsgxrsfdb rguyh6hgfvdjkeefhebffnf7egyeb 7e6fvw d07tefv eoedgs scc8v dds9d86f
Wednesday 14 May 2025 – Morning
AS Level Physics B (Advancing Physics)
H157/01 Foundations of physics
Time allowed: 1 hour 30 minutes
1
Turn over
, 2
Section A
You should spend a maximum of 25 minutes on this section.
Write your answer to each question in the box provided.
1 The power rating of a device is defined as the typical amount of:
A Electricity used in 1 second
B Energy transferred in 1 second
C Energy wasted by the device in 1 second
D Time taken to transfer 1 joule of energy
Your answer
[1]
2 The diagram shows two rays of light passing through a converging lens.
z
The distance z is called the:
A Focal length
B Focus
C Image length
D Power
Your answer
[1]
© OCR 2025
, 3
3 Which point is best considered an outlier or anomaly?
y
D
C
A
B
0 x
0
Your answer
[1]
4 An analogue signal has amplitude 80 mV and picks up noise of amplitude 5 mV.
The number of useful quantisation levels needed to digitise this signal is equal to:
A log 80
2
5
B log 85
2
5
C log10 80
5
D log10 85
5
Your answer
[1]
5 A typical value for the linear magnification achieved by a light microscope used in a secondary
school is:
A 10–6
B 10–2
C 102
D 106
Your answer
[1]
© OCR 2025 Turn over
