Forces and Motion
Quiz
Hi, guys — just a reminder that we’ll be having a quiz on Forces in Fluids on Wednesday of this week. This will cover: worksheets 3-1, 3-2, and 3-3, notes you took in class, and the following topics:
Density
Buoyancy
Pressure
Bernoulli’s Principle
Here are some links for extra study:
Your Textbook Link Click on Chapter 3 Forces In Fluids and [...]
Are You Up For Another Challenge?
I know you just finished the density derby challenge, but I have another one for you. Here’s the challenge. Devise a way in which you can lift a person by using your breath — OK I know what some of you are thinking — I don’t mean to knock someone off their feet with your [...]
The Challenge Was Met
Congratulations on the many fine entries in the Density Derby Challenge, you showed creativity and understanding of the principles of density. Next week we’ll continue to look at forces in fluids examining buoyancy and Bernoulli’s Principle.
Here’s a link that explains how Galileo’s thermometer works. Check it out.
The Challenge Rubric
Density Derby Challenge:
#1-5 to be submitted by each student:
1) Written quality observations of at least 5 demonstration stations (20 points)
2) Answers to day 1 questions, should be at least 5 questions (20 points)
3) Filled test tube with substances in the proper order (1 point each, max 20 points)
4) Scientific explanation of how Galileo’s Thermometer works [...]
Derby Progress
How are you progressing on your Density Derby Challenge?
1) Are you answering the questions from day 1? You should write the answers in your notebook. Here are just a couple of things we asked:
Does weight determine if something floats or sinks?
Does surface area make any difference?
What about size?
What is density?
2) List objects/substances we worked with [...]
More Density
Here’s the link to the density website we used in class.
Click here
Density Derby Challenge
Can you make an object that when placed in water will sink, stay down for exactly one minute, then float? And do this without directly or indirectly touching the object once its in the water?
Well that’s the challenge.
Over the next few days we’ll be making observations from a number of density demonstrations and doing background [...]
Discussions