Viscosity's Effect on Liquid Droplets

Overview

Objectives/Goals This project was done in order to determine whether the property of fluids, viscosity, has an effect on the shape of a liquid#s droplet. The hypothesis was viscosity affects the shape of a liquid#s droplets. It also stated that liquids with higher viscosities have longer droplets and longer necks, because they take more time to separate and stretch out before dropping. Methods/Materials 1. A stopwatch 2. A digital camera with multi-burst function 3. Straws cut into 5cm pieces 4. Graph paper 5. Water 6. Oil 7. Maple syrup 8. Chocolate Syrup 9. milk 10. Isopropyl 11. A ruler The viscosity was determined by passing the liquid through a five centimeter straw and timing how long it takes to cover the distance. This gave a general idea of the viscosity of each liquid, because the longer a fluid takes to flow through the straw, the higher its resistance to flowing. Thus, its viscosity is higher. A sheet of graph paper was taped to the wall with the ruler taped to it. Eachliquid was squeezed into a dropper and dripped constantly. While the drops were dripping, pictures were taken from a digital camera that was set on multi-burst function. Results The results of this project proved that the viscosity of a liquid does not affect the size or shape of its droplet so that the liquid with a higher viscosity has a longer neck. Conclusions/Discussion My project could have been affected by human error, timming miscalculations, space provided, air pressure, and inaccurate calculations.

Competition history

• CSEF 2006 Physics & Astronomy · Entry J1522

Resources

• CSEF project summary ↗

Related projects

Closest projects by meaning, across every fair and year in the corpus.

Browse more like this

• All Physics and Astronomy projects
• CSEF Physics and Astronomy projects
• Every CSEF 2006 project