OCR
Oxford Cambridge and RSA
Friday 10 June 2022 – Afternoon
A Level Physics A
H556/02 Exploring physics
June 2022
Time allowed: 2 hours 15 minutes
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• ...
Friday 10 June 2022 – Afternoon
A Level Physics A
H556/02 Exploring physics
June 2022
Time allowed: 2 hours 15 minutes
You must have:
the Data, Formulae and Relationships booklet
You can use:
a scientific or graphical calculator
a ruler (cm/mm)
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and
diagrams.
• Write your answer to each question in the space provided. If you
need extra space use the lined pages at the end of this booklet. The
question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with
working. Marks might be given for using a correct method, even
if your answer is wrong.
INFORMATION
• The total mark for this paper is 100.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked
with an asterisk (*).
• This document has 28 pages.
ADVICE
• Read each question carefully before you start your answer.
1
,OCR is an exempt
Charity Turn over
, 2
SECTION A
You should spend a maximum of 30 minutes on this
section.
Write your answer to each question in the box
provided.
Answer all the questions.
1 A current is present in the circuit below.
A
electrolyte
The resistor is made from a length of wire.
Which row gives the correct charge carriers in the resistor and in the
electrolyte?
Charge carriers in the Charge carriers in the
resistor electrolyte
A Electrons Electrons
B Electrons Ions
C Electrons and Ions and
protons electrons
D Electrons and Ions and protons
ions
Your answer [1]
2 The half-life of fluorine-18 isotope is T.
After time t = 4T the number of fluorine-18 nuclei in a source is N.
How many fluorine-18 nuclei have decayed in the time interval from t = 0 to t
= 4T?
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