Forces In Fluids
Published on Nov 29, 2015
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PRESENTATION OUTLINE
PRESSURE IN FLUIDS
- Fluid pressure depends on depth.
- Greater the depth, the greater the pressure.
- Fluids include liquids and gases: they take the shape of their containers and will flow.
- Fluids flow from high pressure to low pressure areas.
- P=F/A pressure= force/area
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DENSITY AND BOUYANCY
- 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 that buoyant force.
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ARCHIMEDE'S PRINCIPLE
- Displace: take the place of.
- Principle: buoyant force on an object on an object in a fluid is an upward force equal to the weight of the fluid it displaces.
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