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Cambridge (CIE) IGCSE Physics Your notes
Pressure
Contents
Pressure & Forces
Pressure in a Liquid
Page 1 of 12
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Pressure & Forces
Your notes
Pressure
What is pressure?
Pressure is defined as
The force per unit area
Pressure is measured in pascals (Pa)
1 pascal is equivalent to 1 newton per metre squared
1 Pa = 1 N/m2
It can be calculated using the following pressure equation:
force
pressure =
area
F
p=
A
Where:
p = pressure measured in pascals (Pa) or newtons per metre (N/m2)
F = force measured in newtons (N)
A = area measured in metres squared (m2)
This equation can be rearranged with the help of a formula triangle:
Page 2 of 12
© 2015-2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
Cambridge (CIE) IGCSE Physics Your notes
Pressure
Contents
Pressure & Forces
Pressure in a Liquid
Page 1 of 12
© 2015-2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
, Head to www.savemyexams.com for more awesome resources
Pressure & Forces
Your notes
Pressure
What is pressure?
Pressure is defined as
The force per unit area
Pressure is measured in pascals (Pa)
1 pascal is equivalent to 1 newton per metre squared
1 Pa = 1 N/m2
It can be calculated using the following pressure equation:
force
pressure =
area
F
p=
A
Where:
p = pressure measured in pascals (Pa) or newtons per metre (N/m2)
F = force measured in newtons (N)
A = area measured in metres squared (m2)
This equation can be rearranged with the help of a formula triangle:
Page 2 of 12
© 2015-2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers