You will get to learn about the different states of matter and the nature of physical properties. Explore how the properties of matter are related to size.
After completing this tutorial, you will be able to complete the following:
What is viscosity?
~ Viscosity is a liquid's internal resistance to flowing.
How do large molecular structures and a strong intermolecular attraction help determine a liquid's viscosity?
~ Large molecular structures and a strong intermolecular attraction can both increase viscosity by reducing the flow speed of a liquid.
How does temperature affect viscosity?
~ Viscosity and temperature are closely related. As the temperature of a liquid rises, its particles begin moving faster and it becomes denser. This increased density leads to a decrease in the liquid's viscosity.
How is increasing the temperature of tar useful for workers paving a street?
~ Tar is naturally a very viscous substance and is difficult to work with at a cool temperatures. For this reason, workers normally heat tar until it becomes more viscous and fluid. This makes it easier to pour and spread.
|Approximate Time||2 Minutes|
|Pre-requisite Concepts||Students should be familiar with the following terms: properties of liquids and viscosity.|
|Type of Tutorial||Animation|
|Key Vocabulary||properties of liquids, viscosity,|