Fluid Pressure

• Fluids are substances which can flow as their particles are able to move around
• As these particles move, they collide with surfaces and other particles
• As particles collide, they exert a force on the object. Pressure is force per unit area
• The pressure of a fluid means a force is exerted normal (at right angles) to any surface in contact with the fluid
• Pressure in a liquid depends on depth and density:

  • Higher density means there more particles in a certain space
  • Depth means the number of particles above a point increases. The weight of these particles increases pressure felt
  • This can be calculated with p=height x density x gfs