Alana Prettitore
Monday, March 03, 2008
Journal 3-3
Energy Quiz & Rube Goldberg Week
I. Question
After much research and pondering, I have learned that an object going twice as fast needs twice the energy since kinetic energy depends upon the SQUARE of the speed. Since the formula for kinetic energy = 1/2mv²…this makes perfect sense. M = mass, v = velocity.
II. Summary of Class – Thoughts
On Monday of this week we took and quiz and reviewed it during the whole period. It didn’t go well, and I am still confused about some things. I think the formulas and specifics of drawing the energy diagrams confuse me.
On Wednesday, Mr. Couillard was not here and we were given 3 energy handouts and to plan out the Rube Goldberg labs with our group. My group has a pretty interesting idea of what to hit, but we are still working on thee particulars of how to develop different, unique steps.
On Friday, we focused in on Rube Goldberg as well as reviewed the worksheet on energy that we had for homework. Then, we did the other two worksheets in class since the directions on them were crazy.
III. My Inquiry
What is a trick behind making a Rube Goldberg device?
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