Liquids quiz b Flashcards
Principle of flotation
A floating object displaces a weight of fluid equal to its own weight
Denser fluids will exert a ___ buoyant force on a body than less dense fluids at the same volume
greater
Whether an object floats or sinks depends upon the…
volume of the objet and the volume of the fluid displaced
For an object to float: weight of object is ___ than buoyant force of the liquid, i.e. ___than the weight of the liquid it displaces
less
An object more dense than he fluid in which it is immersed will ____
sink
An object less dense than the fluid in which it is immersed will ____
float
An object having a density equal to the density of the fluid in which it is immersed will ___
neither sink nor float
Pascal’s Principle states that a change in pressure at any point in an enclosed fluid at rest is…
transmitted undiminished to all points in the fluid
The contractive tendency of the surface of liquids is due to _____
surface tension
Surface tension is caused by…
molecular attractions
the rise of a liquid in a fine, hollow tube or in a narrow space is called ____
capillarity
the lighter the liquid, the ___ the capillary rise
higher
the narrower the tube, the ___ the capillary rise
higher
