AQA SUMMER 2026
PREDICTED PAPER
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signatuure
I declare this is my own work.
A-level
PHYSICS WORKED SOLUTIONS
Paper 3
Section B Turning points in physics
Time allowed: The total time for
both sections of this paper is
Materials 2 hours. You are advised to
For this paper you must have: spend approximately 70 minutes
• a pencil and a ruler
on this section.
• a scientific calculator
• a Data and Formulae Booklet
• a protractor
Instructions
• Use black ink or black ball-point pen. For Examiner’s Use
• Fill in the boxes at the top of this page.
• Answer all questions. Question Mark
• You must answer the questions in the spaces provided. Do not write 1
outside the box around each page or on blank pages. 2
• If you need extra space for your answer(s), use the lined pages at the end of
3
this book. Write the question number against your answer(s).
• Show all your working. 4
• Do all rough work in this book. Cross through any work you do not want TOTAL
to be marked.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 35.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
for more: tyrionpapers.com
7408/3BD
, 2
Do not write
outside the
Section B box
Answer all questions in the spaces provided.
0 1 In Millikan's oil drop experiment, a negatively charged oil droplet of mass 4.8 × 10⁻¹⁵ kg
is held stationary between two parallel plates separated by a distance of 5.0 mm.
The figure 1 shows the Millikan Oil Drop Experiment
Figure 1
0 1 . 1 Explain why the oil droplets in Millikan's experiment carry a negative charge.
[1 mark]
0 1 . 2 State the condition required for the oil droplet to remain stationary, and write the
equation that applies in this case.
[2 marks]
for more: tyrionpapers.com
, 0 1 . 3 Calculate the potential difference required across the plates to keep this droplet
stationary.
(g = 9.81 ms⁻², e = 1.6 × 10⁻¹⁹ C)
[3 marks]
Potential difference required across the plates=________________V
0 1 . 4 Millikan found that the charges on all oil droplets were integer multiples of
1.6 × 10⁻¹⁹ C. State what conclusion can be drawn from this finding and
explain its significance.
[2 marks]
8
for more: tyrionpapers.com
PREDICTED PAPER
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signatuure
I declare this is my own work.
A-level
PHYSICS WORKED SOLUTIONS
Paper 3
Section B Turning points in physics
Time allowed: The total time for
both sections of this paper is
Materials 2 hours. You are advised to
For this paper you must have: spend approximately 70 minutes
• a pencil and a ruler
on this section.
• a scientific calculator
• a Data and Formulae Booklet
• a protractor
Instructions
• Use black ink or black ball-point pen. For Examiner’s Use
• Fill in the boxes at the top of this page.
• Answer all questions. Question Mark
• You must answer the questions in the spaces provided. Do not write 1
outside the box around each page or on blank pages. 2
• If you need extra space for your answer(s), use the lined pages at the end of
3
this book. Write the question number against your answer(s).
• Show all your working. 4
• Do all rough work in this book. Cross through any work you do not want TOTAL
to be marked.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 35.
• You are expected to use a scientific calculator where appropriate.
• A Data and Formulae Booklet is provided as a loose insert.
for more: tyrionpapers.com
7408/3BD
, 2
Do not write
outside the
Section B box
Answer all questions in the spaces provided.
0 1 In Millikan's oil drop experiment, a negatively charged oil droplet of mass 4.8 × 10⁻¹⁵ kg
is held stationary between two parallel plates separated by a distance of 5.0 mm.
The figure 1 shows the Millikan Oil Drop Experiment
Figure 1
0 1 . 1 Explain why the oil droplets in Millikan's experiment carry a negative charge.
[1 mark]
0 1 . 2 State the condition required for the oil droplet to remain stationary, and write the
equation that applies in this case.
[2 marks]
for more: tyrionpapers.com
, 0 1 . 3 Calculate the potential difference required across the plates to keep this droplet
stationary.
(g = 9.81 ms⁻², e = 1.6 × 10⁻¹⁹ C)
[3 marks]
Potential difference required across the plates=________________V
0 1 . 4 Millikan found that the charges on all oil droplets were integer multiples of
1.6 × 10⁻¹⁹ C. State what conclusion can be drawn from this finding and
explain its significance.
[2 marks]
8
for more: tyrionpapers.com
