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MFE-Chap 3
Forces In Fluids
Question | Answer |
---|---|
force divided by area | Pressure |
the SI unit for pressure (Newton per square meter) | pascal |
a material that can eqasily flow | fluid |
an instrument used to measure barometric pressure | barometer |
acts in the direction opposite to the force of gravity, so it makes the object feel lighter | buoyant force |
states that the buoyant force acting on a submerged object is equal to the weight of the fluid the object displaces | Archimedes' principle |
mass divided by volume | density |
when force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid | Pascal's principle |
multiples force by applying the force to a small surface area, the increase in pressure is then transmitted to another part of the contained fluid, which pushes on a larger surface area | hydraulic system |
states that as the speed of a moving fluid increases, the pressure within the fluid decreases | Bernoulli's principle |
an upward force | lift |