Practice Paper: AQA A Level Physics 7408/02
(Paper 2)
Sections 6.2, 7 and 8: thermal physics, fields and their consequences,
nuclear physics
Question paper
Written by AcePapers
Independent practice paper written for revision. Not an official AQA paper and not
affiliated with or endorsed by AQA.
Time allowed: 2 hours Total: 85 marks
You will need
• A pen, a pencil, a ruler, a protractor and a scientific calculator. A data and
formulae sheet is printed at the end of this paper.
Instructions
• Answer every question, writing your answers in the lined spaces. You may not
need all of the lines.
• Show your working in calculations and give units where they are needed.
• Section A (60 marks): answer all questions in the spaces provided. Allow about
70 minutes.
• Section B (25 marks): 25 multiple choice questions worth 1 mark each. Put a
cross in the box next to the ONE answer you think is right. If you change your
mind, cross out your first answer clearly. Allow about 35 minutes.
• Part 06.1 is an extended response question. Your answer should be well
organised and logically linked.
• The mark for each part is printed in brackets. Plan your time with it.
• Data and objects labelled fictional or invented were made up for this paper.
Name: ______________________________________ Date: ________________
Practice Paper 7408/02 (Paper 2) – Question paper Written by AcePapers | Page 1
, Section A Answer all questions in this section.
Question 01
An electric kettle has a power of 2.2 kW. It contains 0.75 kg of water at 20 °C.
Assume that all the energy supplied goes into the water. Specific heat capacity of
water = 4200 J kg−1 K−1; specific latent heat of vaporisation of water = 2.26 × 106 J
kg−1.
01.1 Calculate the time taken to bring the water to 100 °C.
[2 marks]
Answer: ______________________ s
01.2 The kettle fails to switch off. Calculate the further time needed to turn 0.10 kg
of the water at 100 °C into steam.
[1 mark]
Answer: ______________________ s
3
01.3 A sealed container of volume 0.020 m holds an ideal gas at a pressure of 1.0
× 105 Pa and a temperature of 300 K. Calculate the number of gas molecules in
the container.
[2 marks]
Answer: ______________________
01.4 Calculate the mean kinetic energy of a gas molecule at 300 K.
[1 mark]
Answer: ______________________ J
01.5 State two assumptions made in the simple kinetic theory model of an ideal
gas.
[2 marks]
Practice Paper 7408/02 (Paper 2) – Question paper Written by AcePapers | Page 2
, 01.6 The gas is heated while its volume stays the same. Explain, in terms of the
molecules, why the pressure increases.
[2 marks]
Question 01 total: 10 marks
Question 02
A communications satellite of mass 500 kg is to be placed in a geostationary orbit.
Take the period of the Earth's rotation as 24 hours. Use data from the data and
formulae sheet.
7
02.1 Show that the radius of a geostationary orbit is about 4.2 × 10 m.
[3 marks]
02.2 Give two features of a geostationary orbit, apart from its period.
[2 marks]
02.3 Calculate the gravitational potential at the surface of the Earth.
[1 mark]
Answer: ______________________ J kg−1
02.4 Calculate the escape velocity from the surface of the Earth.
[2 marks]
Practice Paper 7408/02 (Paper 2) – Question paper Written by AcePapers | Page 3
(Paper 2)
Sections 6.2, 7 and 8: thermal physics, fields and their consequences,
nuclear physics
Question paper
Written by AcePapers
Independent practice paper written for revision. Not an official AQA paper and not
affiliated with or endorsed by AQA.
Time allowed: 2 hours Total: 85 marks
You will need
• A pen, a pencil, a ruler, a protractor and a scientific calculator. A data and
formulae sheet is printed at the end of this paper.
Instructions
• Answer every question, writing your answers in the lined spaces. You may not
need all of the lines.
• Show your working in calculations and give units where they are needed.
• Section A (60 marks): answer all questions in the spaces provided. Allow about
70 minutes.
• Section B (25 marks): 25 multiple choice questions worth 1 mark each. Put a
cross in the box next to the ONE answer you think is right. If you change your
mind, cross out your first answer clearly. Allow about 35 minutes.
• Part 06.1 is an extended response question. Your answer should be well
organised and logically linked.
• The mark for each part is printed in brackets. Plan your time with it.
• Data and objects labelled fictional or invented were made up for this paper.
Name: ______________________________________ Date: ________________
Practice Paper 7408/02 (Paper 2) – Question paper Written by AcePapers | Page 1
, Section A Answer all questions in this section.
Question 01
An electric kettle has a power of 2.2 kW. It contains 0.75 kg of water at 20 °C.
Assume that all the energy supplied goes into the water. Specific heat capacity of
water = 4200 J kg−1 K−1; specific latent heat of vaporisation of water = 2.26 × 106 J
kg−1.
01.1 Calculate the time taken to bring the water to 100 °C.
[2 marks]
Answer: ______________________ s
01.2 The kettle fails to switch off. Calculate the further time needed to turn 0.10 kg
of the water at 100 °C into steam.
[1 mark]
Answer: ______________________ s
3
01.3 A sealed container of volume 0.020 m holds an ideal gas at a pressure of 1.0
× 105 Pa and a temperature of 300 K. Calculate the number of gas molecules in
the container.
[2 marks]
Answer: ______________________
01.4 Calculate the mean kinetic energy of a gas molecule at 300 K.
[1 mark]
Answer: ______________________ J
01.5 State two assumptions made in the simple kinetic theory model of an ideal
gas.
[2 marks]
Practice Paper 7408/02 (Paper 2) – Question paper Written by AcePapers | Page 2
, 01.6 The gas is heated while its volume stays the same. Explain, in terms of the
molecules, why the pressure increases.
[2 marks]
Question 01 total: 10 marks
Question 02
A communications satellite of mass 500 kg is to be placed in a geostationary orbit.
Take the period of the Earth's rotation as 24 hours. Use data from the data and
formulae sheet.
7
02.1 Show that the radius of a geostationary orbit is about 4.2 × 10 m.
[3 marks]
02.2 Give two features of a geostationary orbit, apart from its period.
[2 marks]
02.3 Calculate the gravitational potential at the surface of the Earth.
[1 mark]
Answer: ______________________ J kg−1
02.4 Calculate the escape velocity from the surface of the Earth.
[2 marks]
Practice Paper 7408/02 (Paper 2) – Question paper Written by AcePapers | Page 3
