e
nc
ie
Sc
Please check the examination details below before entering your candidate information
ed
Candidate surname Other names
in
mb
Co
Centre Number Candidate Number
SE
GC
l
22 ce
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
20 dex
E
Paper
Time 1 hour 10 minutes
reference 1SC0/1PH
Combined Science
PAPER 3
Higher Tier
You must have: Total Marks
Calculator, ruler, Equation Booklet (enclosed)
Instructions
• Fill
Use black ink or ball‑point pen.
• centrein the boxes at the top of this page with your name,
number and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 60.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• structure
In questions marked with an asterisk (*), marks will be awarded for your ability to
your answer logically, showing how the points that you make are related
or follow on from each other where appropriate.
• A list of equations is included at the end of this exam paper.
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
*P69478A0120*
P69478A
©2022 Pearson Education Ltd.
Q:1/
, e
nc
ie
Sc
ed
Answer ALL questions. Write your answers in the spaces provided.
in
mb
Co
Some questions must be answered with a cross in a box . If you change your mind about an
SE
answer, put a line through the box and then mark your new answer with a cross .
GC
l
1 (a) Which statement describes conservation of energy in a closed system?
22 ce
20 dex
(1)
E
A when there are energy transfers, the total energy reduces
B when there are energy transfers, the total energy does not change
C when there are no energy transfers, the total energy reduces
D when there are no energy transfers, the total energy increases
(b) A student uses the apparatus in Figure 1 to find out which of two materials,
sand or sawdust, is the better insulator.
large copper can sand sawdust
small copper
can
Figure 1
The student also has a kettle to boil water, a thermometer and a stop clock.
(i) Draw a labelled diagram to show how the student should set up the
equipment to investigate which material is the better insulator.
(3)
2
*P69478A0220*
, e
nc
ie
Sc
ed
(ii) Give three factors that the student must control in this investigation.
in
mb
(3)
Co
SE
1 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
GC
l
22 ce
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... .............. .. . . . . . . . . . . . . . . . . . . . .
20 dex
2 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
E
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... .............. .. . . . . . . . . . . . . . . . . . . . .
3 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... .............. .. . . . . . . . . . . . . . . . . . . . .
(c) Expanded polystyrene, used to insulate buildings, has different densities.
Figure 2 shows how the thermal conductivity of expanded polystyrene changes
with the density of expanded polystyrene.
45
thermal conductivity 40
of expanded
polystyrene
in mW / m.K 35
30
10 15 20 25 30 35 40
density of expanded polystyrene in kg/m3
Figure 2
Using the graph in Figure 2, describe how the thermal conductivity of expanded
polystyrene changes with the density of expanded polystyrene.
(2)
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
(Total for Question 1 = 9 marks)
*P69478A0320*
3
Turn over
nc
ie
Sc
Please check the examination details below before entering your candidate information
ed
Candidate surname Other names
in
mb
Co
Centre Number Candidate Number
SE
GC
l
22 ce
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
20 dex
E
Paper
Time 1 hour 10 minutes
reference 1SC0/1PH
Combined Science
PAPER 3
Higher Tier
You must have: Total Marks
Calculator, ruler, Equation Booklet (enclosed)
Instructions
• Fill
Use black ink or ball‑point pen.
• centrein the boxes at the top of this page with your name,
number and candidate number.
• Answer all questions.
• Answer the questions in the spaces provided
– there may be more space than you need.
Information
• The total mark for this paper is 60.
• The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• structure
In questions marked with an asterisk (*), marks will be awarded for your ability to
your answer logically, showing how the points that you make are related
or follow on from each other where appropriate.
• A list of equations is included at the end of this exam paper.
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
*P69478A0120*
P69478A
©2022 Pearson Education Ltd.
Q:1/
, e
nc
ie
Sc
ed
Answer ALL questions. Write your answers in the spaces provided.
in
mb
Co
Some questions must be answered with a cross in a box . If you change your mind about an
SE
answer, put a line through the box and then mark your new answer with a cross .
GC
l
1 (a) Which statement describes conservation of energy in a closed system?
22 ce
20 dex
(1)
E
A when there are energy transfers, the total energy reduces
B when there are energy transfers, the total energy does not change
C when there are no energy transfers, the total energy reduces
D when there are no energy transfers, the total energy increases
(b) A student uses the apparatus in Figure 1 to find out which of two materials,
sand or sawdust, is the better insulator.
large copper can sand sawdust
small copper
can
Figure 1
The student also has a kettle to boil water, a thermometer and a stop clock.
(i) Draw a labelled diagram to show how the student should set up the
equipment to investigate which material is the better insulator.
(3)
2
*P69478A0220*
, e
nc
ie
Sc
ed
(ii) Give three factors that the student must control in this investigation.
in
mb
(3)
Co
SE
1 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
GC
l
22 ce
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... .............. .. . . . . . . . . . . . . . . . . . . . .
20 dex
2 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
E
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... .............. .. . . . . . . . . . . . . . . . . . . . .
3 . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... .............. .. . . . . . . . . . . . . . . . . . . . .
(c) Expanded polystyrene, used to insulate buildings, has different densities.
Figure 2 shows how the thermal conductivity of expanded polystyrene changes
with the density of expanded polystyrene.
45
thermal conductivity 40
of expanded
polystyrene
in mW / m.K 35
30
10 15 20 25 30 35 40
density of expanded polystyrene in kg/m3
Figure 2
Using the graph in Figure 2, describe how the thermal conductivity of expanded
polystyrene changes with the density of expanded polystyrene.
(2)
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . .. .. .. .. .. .. .. .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... ................ . . . . . . . . . . . . . . . . . . . .
(Total for Question 1 = 9 marks)
*P69478A0320*
3
Turn over
