4. State some of the practical applications of relative density.
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IT IS USED IN LAVA LAMPS
GENERALLYKNOWN as "FLUID MOTION LAMPS",
IT IS AN
illustration of density and buoyancy in action as the blobs of oozing goo move up and down in ever-changing shapes.
These lamps consist of a container of water in which is placed a colored organic oily liquid that does not mix with water, thus constituting a second phase.
The composition of the oil phase is such that its density is slightly greater than that of water at room temperature, so it normally resides at the bottom of the container.
When the lamp is turned on, a heat source concealed in the base of the container heats the oil phase.
This reduces its density to a value below that of the water, causing blobs of oil to rise to the top of the container.
Being now far removed from the heat source, the blobs cool down and sink back to the bottom, where they repeat the cycle.
Explanation:
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the hygrometer
balloons
ships
submarines
Explanation:
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