Edexcel IGCSE Physics · Spec 5.3-5.5
Pressure: Using the Equations
Worked examples using the pressure equations.
Physics revision video
Pressure: Using the Equations
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Spec 5.3-5.5
What you need to know
- Use pressure equals force over area
- Use p equals rho g h for liquids
- Rearrange each equation
Active recall
Quick check
Answer each question before opening the answer.
What pressure does a 200 N force exert on an area of 4 m²?
p = F ÷ A = 200 ÷ 4 = 50 Pa.
What are the units of pressure?
Pascals (Pa), equal to N/m².
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