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Pearson Edexcel International Advanced Level Physics International Advanced Level UNIT 5: Thermodynamics, Radiation, Oscillations and Cosmology QP JUNE 2024$12.49
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Pearson Edexcel International Advanced Level Physics International Advanced Level UNIT 5: Thermodynamics, Radiation, Oscillations and Cosmology QP JUNE 2024
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Course
Pearson Edexcel International Advanced Level
Institution
Pearson Edexcel International Advanced Level
Pearson Edexcel International Advanced Level Physics International Advanced Level UNIT 5: Thermodynamics, Radiation, Oscillations and
Cosmology QP JUNE 2024
Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Wednesday 5 June 2024
Morning (Time: 1 hour 45 minutes)
Physics
Paper
reference WPH15/01 🞍 🞍
International Advanced Level
UNIT 5: Thermodynamics, Radiation, Oscillations
and Cosmology
You must have: Total Marks
Scientific calculator, ruler
Pearson Edexcel International Advanced Level Physics International Advanced Level UNIT 5: Thermodynamics, Radiation, Oscillations and
Cosmology QP JUNE 2024
Instructions
•• Use black ink or ball‑point pen.
If pencil is used for diagrams/sketches/graphs it must be dark (HB or B).
• Fill in the
centre numberboxes
andatcandidate
the top ofnumber.
this page with your name,
•• Answer all
thequestions.
questions in the spaces provided
– there may be more space than you need.
• Show all your working out in calculations and include units where appropriate.
Information
•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Into the question marked with an asterisk (*), marks will be awarded for your ability
structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
• The list of data, formulae and relationships is printed at the end of this booklet.
Advice
• Read each question carefully before you start to answer it.
• Try to answer every question.
• Check your answers if you have time at the end. Turn over
DO NOT WRITE IN THIS AREA
For questions 1–10, in Section A, select one answer from A to D and put a cross in the box .
If you change your mind, put a line through the box and then mark your new answer with a
cross .
1 A red giant star evolves into a white dwarf star.
Which row of the table gives the changes in density and surface temperature as the red
giant star evolves into a white dwarf star?
Density Surface temperature
A decreases decreases
B decreases increases
C increases decreases
D increases increases
DO NOT WRITE IN THIS AREA
(Total for Question 1 = 1 mark)
2 Which of the following can be used to determine the distance to a nearby star?
A Doppler shift
B Hertzsprung–Russell diagram
C Hubble’s law
D Trigonometric parallax
(Total for Question 2 = 1 mark)
3 A mass-spring system is set into oscillation. The maximum kinetic energy of the mass
is E. DO NOT WRITE IN THIS AREA
The amplitude of oscillation is then doubled.
What is the new maximum kinetic energy of the mass?
A 4E
B 2E
C E
D 0.5E
(Total for Question 3 = 1 mark)
2
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, 4 A mass is forced into oscillation by a vibration generator. After a short time the
oscillation becomes steady.
DO NOT WRITE IN THIS AREA
Which of the following statements about the steady oscillation of the mass is
always true?
A The amplitude of oscillation of the mass will be a maximum.
B The mass will oscillate at its natural frequency.
C The mass will oscillate at the frequency of the vibration generator.
D The transfer of energy to the mass will be a maximum.
(Total for Question 4 = 1 mark)
5 Which of the following correctly describes the random nature of radioactive decay?
A Radioactive decay is a natural process.
B Radioactive decay is a spontaneous process.
DO NOT WRITE IN THIS AREA
C We cannot influence when a decay will take place.
D We cannot predict when a decay will take place.
(Total for Question 5 = 1 mark)
6 The dwarf planet Pluto orbits the Sun in an elliptical orbit. The gravitational force of the
Sun on Pluto varies as Pluto orbits the Sun.
Pluto moves away from the Sun.
Which row of the table shows how the gravitational force of the Sun on Pluto and the
velocity of Pluto change?
Gravitational force Velocity
A decreases decreases
DO NOT WRITE IN THIS AREA
B decreases increases
C increases decreases
D increases increases
(Total for Question 6 = 1 mark)
3
🞍🞍🞍🞍 Turn over
, 7 Wolf 359 is a star with a surface temperature of 2700 K.
The luminosity of the Sun is LSun .
DO NOT WRITE IN THIS AREA
The luminosity of Wolf 359 is 0.001 LSun .
Which of the following describes Wolf 359?
A blue giant star
B red dwarf star
C red giant star
D white dwarf star
(Total for Question 7 = 1 mark)
8 A container is filled with a mixture of two gases, X and Y, at constant temperature.
Each molecule of gas X has twice the mass of each molecule of gas Y.
r.m.s. velocity of molecules in gas X
The ratio is
DO NOT WRITE IN THIS AREA
r.m.s. velocity of molecules in gas Y
1
A 2
1
B 2
1
C
2
D
(Total for Question 8 = 1 mark)
DO NOT WRITE IN THIS AREA
4
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