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Marble Race: Finding Viscosity of Fluids

tipo de documento Física - Experiment/Pràctica

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Viscosity is a measurement of a fluid’s resistance to change or deformation, or more simply put, how thick it is. A fluid can be a gas or a liquid, and it is easy to see that liquids are thicker than gases, and therefore have higher viscosities. Of course, some liquids are more viscous than others. For example, honey is more viscous than water. Can you imagine trying to swim in a pool of honey instead of water?Changes and deformations are caused by stress, which is a force. Viscosity is a result of friction between molecules in a fluid that are moving at different speeds. Typically, fluids move faster away from the walls of the container, and fluids move more slowly the closer they are to the wall. This is called the “no-slip” condition.Which fluids do you think are the most viscous?

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