Discussion of the section on flowing fluids

Each section in this Hands-On / Virtual workshop ends with a discussion page.  The questions we ask here serve two important purposes.  First, they help your group reflect on the concepts that you have studied in this section, summarize what you have learned, and encourage you to connect those concepts to other things you experience in the world.  Secondly, they are the means by which the remote instructors of the class get immediate feedback on how much the group is thinking and learning.  They are the immediate section assessment.

You are asked as a group to discuss at least 2 of the following questions.  We encourage you to discuss them all, but we ask for an email commentary to only two of them.  Before you start please see this page for some guidance on what types of discussion we are looking for.  After you email your discussion, you can expect (within a day or two) an email from us commenting on what you wrote. Sometimes this commentary will ask for further discussion; sometimes it will give examples of what other groups had to say. You should always read these commentaries carefully, and reply to the follow-up questions if there are any. These comments are intended to guide you to a better understanding of the subject matter.

Here are some things to do to finish this section.

Discuss these questions with the people in your group. Please send us a discussion of these three questions. Don't forget to tell us the group name. (Clicking on the link should start your email program, and fill in the address automatically. However, sometimes this does not work, or causes the wrong email program to be started. If the email link does not work for you, send the messages the way you are used to, to sciworks@pa.uky.edu -- or reply to a message from us!).
  1. Bob in his boat My friend Bob wants to remove the water from his boat that splashed in when he hooked a fish. He has a hose which he is considering using to siphon the water out. Unfortunately, he doesn't know anything about siphons. Please explain how to get the hose working as a siphon, and discuss the relative merits of using a siphon versus bailing with his hat.
  2. Filling a backyard swimming pool is a slow business! My neighbor Margie says you should use the hose nozzle, set to make a stinging jet of water that blasts the paint off the pool, because this will speed the process up. Louise says this is a bad idea, and that it will actually take longer Margie's way. Please discuss Margie's idea, and explain who is right.
  3. Explain what happens when you flush a toilet. We will assume that the tank starts out filled, and not consider how it gets refilled later. But we are interested in all the things that happen to the water level in the bowl, and why it goes "glurk!" at one point.

If there is something that you don't understand about flowing fluids, Ask us!

This is the end of this section. (Check this box Check box )   The next section is about electrical current.

Here are some other pages you might want to look at sometime: