Pressure in a Fluid

    Cards (9)

    • A fluid can either be a liquid or a gas
    • What is pressure caused by?
      Particles colliding with a surface
    • As particles move around a fluid, what do they do?
      They collide with the surface of objects in the fluid or the surface of the container
    • When collisions occur in a fluid, what do they create?
      They create a force normal (at right angles) to the surface
    • What is the equation for pressure?
      pressure = force (normal to a surface) / area (of that surface)
    • If a pressure acts on a bigger area , it will produce a bigger force
    • Pressure is measured in pascals (Pa)
    • Force is measured in newtons (N)
    • Area is measure in metres squared (m²)
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