 # Pressure in Fluids

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IGCSE Physics Lessons
Math Worksheets

A series of free GCSE/IGCSE Physics Notes and Lessons.

The following diagram gives the formula for pressure: pressure = force ÷ area. Pressure in Fluids
How to calculate the pressure of fluid acting at a surface?
Explain why atmospheric pressure decreases with an increase in height.
Example:
A gas inside a container applies a force of 400 000N. THe walls of the container have an area of 8 m2. Calculate the pressure of the gas.

Floating or Sinking
How to calculate the pressure of a liquid?
How the pressure of a liquid leads to the force of upthrust?
Explain why objects float or sink.
Describe the factors which influence floating and sinking.

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