Measure Viscosity With Marbles

Honey is a great example.

Measure viscosity with marbles.

To our knowledge the effective viscosity of marbles has never been considered yet. The viscosities ratio simply scales as r l r and l being respectively the radius of the marble and l the characteristic thickness of the. In our experiment the marbles took longer to sink when dropped into the jars filled with corn syrup and honey than they did when dropped into the jars filled. Viscosity is a measurement of a fluid s resistance to change or deformation or more simply put how thick it is.

Google classroom create assignment create announcement. By measuring how long it takes the marble to fall and how far it travels you can figure out the liquid s viscosity. Viscosity can also be thought of as a measure of how thick a liquid is. Have you ever noticed that some liquids are more difficult than others to squeeze from a container.

Although it involves some knowledge of algebra a basic experiment can measure the time it takes for a round sphere to. But a do it yourselfer s kitchen has most of the tools necessary to obtain a simple measurement of a motor oil s viscosity. Of course some liquids are more viscous than others. Design an experiment to test how the viscosity of honey changes with temperature.

Repeat the experiment up to this step starting from preparing the graduated cylinder to measure the viscosity of each liquid for each of the remaining test liquids. For example honey is more viscous than water. Dropping a sphere in a liquid is one of the oldest and easiest ways to measure viscosity. You won t need to do any calculations in this activity but you will get to.

By amy cowen on august 27 2015 3 00 pm. 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. Can you imagine trying to swim in a pool of. Understand the variables in the viscosity equation.

There are scientific ways to measure viscosity with a viscometer. Density is mass per unit volume of an object and is designated with a p in this equation you need to measure the density of both the sphere p s and the liquid p l it is passing through the radius of the sphere a can be found by measuring the circumference of the sphere and dividing that by 2π. Racing marbles to measure viscosity. High viscosity fluids have a lot of resistance to changing their shape so the marble takes longer to fall.