FLUIDS AND PRESSURE

PRESSURE IN FLUIDS

• Fluid pressure depends on depth
• The grater the depth, the greater pressure
• Fluids include liquids and gases: they take the shape of their containers and will flow
• Fluids flow from high to low pressure areas
• P = F/A pressure = force/area

DENSITY AND BUOYANCY

• Density is the ration of mass to volume in a given substance D = m/v
• Sinking: an object will sink if it is more dense than the fluid it is in or if it has greater weight than the buoyant force
• Floating: object will float if it is less dense than the fluid it is in or is equal to the buoyant force

ARCHEMIEDIES PRINCIPLE

• Displace - to take the place of
• Principle - buoyant force on an object in a fluid is an upward force equal to the weight of the fluid it displaces