FORCES IN FLUIDS

PRESSURE IN FLUIDS

• Fluid pressure depends on depth
• Greater the depth, the greater the pressure
• Fluids are liquids & gases: they take the shape of its container and will flow
• Fluids flow from high pressure to low pressure areas
• P=F/A pressure

DENSITY & BUOYANCY

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

ARCHIMEDE'S PRINCIPLE

• Displaces: 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