Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
INTERNATIONAL A-LEVEL
PHYSICS
Unit 4 Energy and Energy resources
Thursday 15 June 2023 07:00 GMT Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
• a Data and Formulae Booklet as a loose insert
• a ruler with millimetre measurements Question Mark
• a scientific calculator, which you are expected to use where appropriate 1
• a protractor. 2
3
Instructions
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page. 5
• Answer all questions.
6
• You must answer the questions in the spaces provided. Do not write
outside the box around each page or on blank pages. 7
• All working must be shown. 8–22
• If you need extra space for your answer(s), use the lined pages at the end of
TOTAL
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
to be marked.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
*jUn23PH0401*
IB/M/Jun23/E5 PH04
, 2
Do
Do not
not write
write
outside
outside the
the
Section A box
box
Answer all questions in this section.
0 1 Brownian motion provides evidence that gas is made of particles.
Brownian motion is demonstrated in a school laboratory by observing the motion of
smoke particles under a microscope.
Properties of the gas molecules are deduced from observations made during the
demonstration.
Explain two properties of the gas molecules in terms of these observations.
[4 marks]
1
2
4
*02*
IB/M/Jun23/PH04
, 3
Do not write
outside the
0 2 Gas bottles are used to store gases at high pressure. box
Gas bottle A in Figure 1 contains 25 mol of gas at a pressure of 1.0 MPa.
Assume that the interior of A is a cylinder of length 1.27 m and radius r, as shown
in Figure 2, and that the gas behaves as an ideal gas.
Figure 1 Figure 2
0 2 . 1 The temperature of the gas is 17 °C.
Determine r.
[3 marks]
r= m
Question 2 continues on the next page
Turn over ►
*03*
IB/M/Jun23/PH04
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
INTERNATIONAL A-LEVEL
PHYSICS
Unit 4 Energy and Energy resources
Thursday 15 June 2023 07:00 GMT Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
• a Data and Formulae Booklet as a loose insert
• a ruler with millimetre measurements Question Mark
• a scientific calculator, which you are expected to use where appropriate 1
• a protractor. 2
3
Instructions
• Use black ink or black ball-point pen. 4
• Fill in the boxes at the top of this page. 5
• Answer all questions.
6
• You must answer the questions in the spaces provided. Do not write
outside the box around each page or on blank pages. 7
• All working must be shown. 8–22
• If you need extra space for your answer(s), use the lined pages at the end of
TOTAL
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
to be marked.
Information
• The marks for questions are shown in brackets.
• The maximum mark for this paper is 80.
*jUn23PH0401*
IB/M/Jun23/E5 PH04
, 2
Do
Do not
not write
write
outside
outside the
the
Section A box
box
Answer all questions in this section.
0 1 Brownian motion provides evidence that gas is made of particles.
Brownian motion is demonstrated in a school laboratory by observing the motion of
smoke particles under a microscope.
Properties of the gas molecules are deduced from observations made during the
demonstration.
Explain two properties of the gas molecules in terms of these observations.
[4 marks]
1
2
4
*02*
IB/M/Jun23/PH04
, 3
Do not write
outside the
0 2 Gas bottles are used to store gases at high pressure. box
Gas bottle A in Figure 1 contains 25 mol of gas at a pressure of 1.0 MPa.
Assume that the interior of A is a cylinder of length 1.27 m and radius r, as shown
in Figure 2, and that the gas behaves as an ideal gas.
Figure 1 Figure 2
0 2 . 1 The temperature of the gas is 17 °C.
Determine r.
[3 marks]
r= m
Question 2 continues on the next page
Turn over ►
*03*
IB/M/Jun23/PH04
