Forces in Fluids
Published on Mar 23, 2016
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PRESENTATION OUTLINE
Pressure in Fluids
- fluid pressure depends on depth
- greater the depth, the greater the pressure
- fluids are liquids and gases: they take the shape of their containers and will flow
- fluids flow from high pressure to low pressure areas
- pressure = force/area
Photo by mr.beaver
Density and Buoyancy
- density is the ratio 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: an object will float if it is less dense than the fluid it is in OR is equal to all the buoyant force
Photo by jjay69
Archimede's 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
Photo by www.metaphoricalplatypus.com
