AQA
GCSE
COMBINED SCIENCE: TRILOGY
Foundation Tier Physics Paper 1F
May 2023
, 2
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outside the
0 1 A scientist investigated the radiation emitted by different radioactive isotopes. box
The scientist had a sample of polonium-210.
The radiation emitted by polonium-210 can be represented by the symbol 4
He.
2
0 1
. 1 Which type of radiation can be represented by the symbol 4 He?
2
[1 mark]
Tick () one box.
Alpha
Beta
Gamma
0 1 . 2 How many protons are there in a particle of radiation represented by 4 He?
2
[1 mark]
Tick () one box.
2 4 6 8
0 1 . 3 A polonium-210 (Po) nucleus changes into a lead (Pb) nucleus by emitting a
4
He particle. This is shown by the following nuclear equation.
2
210 206
Po → Pb + 4He
84 X 2
What is the value of X?
[1 mark]
Tick () one box.
80 82 84 86
IB/M/Jun23/8464/P/1F
, 3
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outside the
0 1 .4 The sample of polonium-210 had an activity of 100 Bq. box
Complete the sentence.
Choose the answer from the box.
[1 mark]
25 50 100 200
After one half-life, the activity of polonium-210 in the sample
was Bq.
Question 1 continues on the next page
Turn over ►
IB/M/Jun23/8464/P/1F
, 4
Do not write
outside the
The scientist investigated another radioactive isotope that is a source of gamma box
radiation.
Figure 1 shows the equipment used.
Figure 1
0 1
. 5 The count-rate is the number of counts detected each second.
In 30 seconds the number of counts detected was 1500.
Calculate the count-rate.
[2 marks]
Count-rate = counts per second
IB/M/Jun23/8464/P/1F
GCSE
COMBINED SCIENCE: TRILOGY
Foundation Tier Physics Paper 1F
May 2023
, 2
Do not write
outside the
0 1 A scientist investigated the radiation emitted by different radioactive isotopes. box
The scientist had a sample of polonium-210.
The radiation emitted by polonium-210 can be represented by the symbol 4
He.
2
0 1
. 1 Which type of radiation can be represented by the symbol 4 He?
2
[1 mark]
Tick () one box.
Alpha
Beta
Gamma
0 1 . 2 How many protons are there in a particle of radiation represented by 4 He?
2
[1 mark]
Tick () one box.
2 4 6 8
0 1 . 3 A polonium-210 (Po) nucleus changes into a lead (Pb) nucleus by emitting a
4
He particle. This is shown by the following nuclear equation.
2
210 206
Po → Pb + 4He
84 X 2
What is the value of X?
[1 mark]
Tick () one box.
80 82 84 86
IB/M/Jun23/8464/P/1F
, 3
Do not write
outside the
0 1 .4 The sample of polonium-210 had an activity of 100 Bq. box
Complete the sentence.
Choose the answer from the box.
[1 mark]
25 50 100 200
After one half-life, the activity of polonium-210 in the sample
was Bq.
Question 1 continues on the next page
Turn over ►
IB/M/Jun23/8464/P/1F
, 4
Do not write
outside the
The scientist investigated another radioactive isotope that is a source of gamma box
radiation.
Figure 1 shows the equipment used.
Figure 1
0 1
. 5 The count-rate is the number of counts detected each second.
In 30 seconds the number of counts detected was 1500.
Calculate the count-rate.
[2 marks]
Count-rate = counts per second
IB/M/Jun23/8464/P/1F
