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Experimental Design

Explore how temperature affects fluid flow rates. Experiment with different fluids, viscosities, and container sizes to observe varying flow rates. Consider factors like tilt, viscosity, and temperature in your analysis. Design your experiment, record your results, and discuss findings, with a focus on understanding the impact of temperature on flow rates. Engage in a collaborative discussion and reflect on possible biases and improvements for future experiments.

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Experimental Design

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  1. Experimental Design

  2. Flow Rate Revisited • NOT measured in length over time • Then what is the unit? • Amount of fluid coming through in a certain time • Niagra Falls of Corn Syrup vs. Fire hose of oil

  3. Restaurant Problem... • 2 different fluids (oil and mayonaise) • 2 different viscosities • 2 different containers • It takes the same time to fill cups of either • Which has the largest flow rate?

  4. Changes to the lab • No longer looking at which fluid can flow the fastest • BUT looking at how much fluid can flow over a certain time

  5. What could affect your results • Tilt of container you are pouring fluid from • Tilt of plane you are pouring it onto • Viscosity of fluid • Diameter of container you are pouring the fluid from

  6. For this lab (Write this down!) • Only looking at the effect of temperature • What does that mean for • Tilt of container you are pouring fluid from • Tilt of plane you are pouring it onto • Viscosity of fluid • Diameter of container you are pouring the fluid from

  7. Designing your experiment • I will give you: A fluid at 2 different temperature • Problem – What are we trying to figure out? • Hypothesis – What do you think is going to happen? • Materials – What do you need? • Procedure – What are you going to do? How many times? • Result – What happened? • Discussion – Why did that happen?

  8. Low flow shower head • http://www.youtube.com/watch?v=6467uwBeNhE

  9. Discussion (everyone should contribute) • Why did you get the results you got? • Do your results make sense? • What could have affected you results? (bias) • What worked well? • What would you do differently next time? • Don’t forget! • Write your role • Clean up your station • 1 copy per group

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