ISLAMIYA ENGLISH SCHOOL
PHYSICS: END-OF-CHAPTER 9 TEST
Name ___________________________________
Date _____________
End-of-chapter 9 test
1
Water is boiling in a cooking pot. Steam rises from the pot and forms droplets of water on a window.
Sometime later, the water droplets have gone.
Which of these describes what is happening?
[1]
A Condensation  melting  evaporation
B Condensation  evaporation  condensation
C Evaporation  condensation  evaporation
D Melting  evaporation  condensation
2
[1]
Which of these shows the relationship between pressure p and volume V in a gas?
A p is proportional to V
B p is inversely proportional to V
C p is proportional to V 2
D p is inversely proportional to V 2
3
The arrows in the figure show changes of state.
[2]
Complete the figure by writing the name for each of the changes of state on the dotted lines.
Cambridge IGCSE™ Physics – Smyth © Cambridge University Press 2021
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ISLAMIYA ENGLISH SCHOOL
PHYSICS: END-OF-CHAPTER 9 TEST
4
Car tyres are filled with air. Figure 9.1 shows someone putting more air into a car tyre.
Figure 9.1
a
[3]
Explain what happens to the pressure inside the tyre when more air is added.
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b It is important to have the correct pressure of air in a tyre. The pressure is measured when the tyre
is at the same temperature as the air outside.
When the car is moving, the temperature of the tyres increases.
Explain why the pressure of the air inside the tyre should not be measured when the tyre is hot. [2]
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[Total: 5]
Cambridge IGCSE™ Physics – Smyth © Cambridge University Press 2021
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ISLAMIYA ENGLISH SCHOOL
PHYSICS: END-OF-CHAPTER 9 TEST
5
Figure 9.2 shows equipment used to test the relationship between pressure and volume in a gas at a
constant temperature.
Figure 9.2
a
i
[1]
Describe how the equipment is used to increase the pressure on the gas.
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ii
[1]
State what happens to the volume of the gas when the pressure is increased.
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b When the volume of the gas is 0.004 m3, the pressure is 200 000 Pa.
The volume is changed to 0.001 m3. Calculate the new pressure.
[3]
Show your working.
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Cambridge IGCSE™ Physics – Smyth © Cambridge University Press 2021
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ISLAMIYA ENGLISH SCHOOL
PHYSICS: END-OF-CHAPTER 9 TEST
c
On the axes provided, sketch how the pressure in the gas changes with volume when all other
variables stay the same. You do not have to put numbers on the axes.
[2]
d Explain why temperature must remain constant when investigating the link between
[1]
pressure and volume in a gas.
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[Total: 8]
6
The everyday unit of temperature is °C.
a
[1]
Write the name of the unit used for the absolute scale of temperature.
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[1]
b Describe what is meant by absolute zero.
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c
State how to convert a temperature in °C to a temperature on the absolute scale.
[1]
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[Total: 3]
[Total: 20 marks]
END OF TEST
Cambridge IGCSE™ Physics – Smyth © Cambridge University Press 2021
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