AQA A-level PHYSICS Paper 3
Section B Engineering physics 2020 QP
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS
Paper 3
Section B Engineering physics
Friday 5 June 2020 Afternoon Time allowed: The total time for
both sections of this paper is
Materials
For this paper you must have: 2 hours. You are advised to
• a pencil and a ruler spend approximately
• a scientific calculator 50 minutes on this section.
• a Data and Formulae Booklet.
Instructions For Examiner’s Use
• Use black ink or black ball-point pen. Question Mark
• Fill in the boxes at the top of this page.
1
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write 2
outside the box around each page or on blank pages. 3
• If you need extra space for your answer(s), use the lined pages at the end of 4
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want 5
to be marked. TOTAL
• Show all your working.
Information
• The marks for 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.
*JUN2074083BC01*
IB/M/Jun20/E8 7408/3BC
, 2
Do not write
outside the
Section B box
Answer all questions in this section.
0 1 . 1 State what is meant by the moment of inertia of an object about an axis.
[1 mark]
0 1 . 2 A student does an experiment using the apparatus shown in Figure 1.
Figure 1
*02*
IB/M/Jun20/7408/3BC
, 3
Do not write
outside the
A solid disc pulley of mass M and radius R is supported in bearings which have box
negligible friction.
A string of negligible mass is wrapped around the circumference of the pulley.
A load of mass 0.5M is fixed to the free end of the string. The string does not slip on
the pulley.
The moment of inertia of the pulley about the axis of rotation is 0.5MR2.
The student holds the pulley stationary.
When the student releases the pulley, the load accelerates downwards uniformly and
is at a velocity v after moving a distance h.
Show that the acceleration of the load is 0.5g.
[4 marks]
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun20/7408/3BC
Section B Engineering physics 2020 QP
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
PHYSICS
Paper 3
Section B Engineering physics
Friday 5 June 2020 Afternoon Time allowed: The total time for
both sections of this paper is
Materials
For this paper you must have: 2 hours. You are advised to
• a pencil and a ruler spend approximately
• a scientific calculator 50 minutes on this section.
• a Data and Formulae Booklet.
Instructions For Examiner’s Use
• Use black ink or black ball-point pen. Question Mark
• Fill in the boxes at the top of this page.
1
• Answer all questions.
• You must answer the questions in the spaces provided. Do not write 2
outside the box around each page or on blank pages. 3
• If you need extra space for your answer(s), use the lined pages at the end of 4
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want 5
to be marked. TOTAL
• Show all your working.
Information
• The marks for 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.
*JUN2074083BC01*
IB/M/Jun20/E8 7408/3BC
, 2
Do not write
outside the
Section B box
Answer all questions in this section.
0 1 . 1 State what is meant by the moment of inertia of an object about an axis.
[1 mark]
0 1 . 2 A student does an experiment using the apparatus shown in Figure 1.
Figure 1
*02*
IB/M/Jun20/7408/3BC
, 3
Do not write
outside the
A solid disc pulley of mass M and radius R is supported in bearings which have box
negligible friction.
A string of negligible mass is wrapped around the circumference of the pulley.
A load of mass 0.5M is fixed to the free end of the string. The string does not slip on
the pulley.
The moment of inertia of the pulley about the axis of rotation is 0.5MR2.
The student holds the pulley stationary.
When the student releases the pulley, the load accelerates downwards uniformly and
is at a velocity v after moving a distance h.
Show that the acceleration of the load is 0.5g.
[4 marks]
Question 1 continues on the next page
Turn over ►
*03*
IB/M/Jun20/7408/3BC
