Principle
Extensive bodies have the property of weighing less when they are in water than when they are in air, which you notice when you swim, for example. For this reason, even heavy container ships can swim, although a small pebble immediately sinks. In this ...
The buoyancy force is equal to the force of the weight of the liquid displaced: This experiment uses the archimedean principle to determine to which extent the buoyancy depends on the mass and volume of a body and the density of the liquid, using ever ...
The density of water and glycerol is determined as a function of temperature using the Mohr balance.
Tasks
The density of water and glycerol is measured in 1 to 2° steps over a temperature range from 0 to 20°C, then in larger st ...
A vessel containing liquid is rotated about an axis. The liquid surface forms a paraboloid of rotation, the parameters of which will be determined as a function of the angular velocity.
On the rotating liquid surface, the followin ...
The viscosity of liquids can be determined with a rotation viscometer, in which a motor with variable rotation speed drives a cylinder immersed in the liquid to be investigated with a spiral spring. The viscosity of the liquid generates a moment of rotation at the c ...
Due to internal friction among their particles, liquids and gases have different viscosities. The viscosity, a function of the substance's structure and its temperature, can be experimentally determined, for example, by measuring the rate of fall of a ball in a tube ...
The force is measured on a ring shortly before a liquid film tears using a torsion meter. The surface tension is calculated from the diameter of the ring and the tear-off force.
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