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 Quick! What are the simple machines? 5/29 Motion and Friction Unite! 5/11 Forces of the World 5/1 Battery Rock 4/22 Water Quality-Nitrates and Phosphates 3/17 List 5, 10, all

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 May 25, 2013
 Forces of the World      Ok first of all for all you people out there who don't go to Chimacum, I am going to let you know that you can call me Kelso its my nickname. Second the title of this blog is Forces of the World so I'm going to tell you all about the forces I learned about when we did our lesson 5. First we did an experiment with elastic forces. We streched a rubber band to a certain amount of centimeters wit a spring scale. That spring scale measured the amount of elastic force the rubber band was streching. The second force we really learned about was gravity well we learned about mass and weight which had something to do with gravity. We took a BIG rock, a little rock, a marble, a styropome cup, a copper strip, and a zinc strip. Then we measured them by ourselfs to see which ones weighed the most and which ones weighed the least. We figured out that it dosen't matter how big something is it just mattered how much mass the object had. We also found that the difference between mass and weight is that mass is the amount of matter something has while weight is a measurement of the pull of gravity. These are just some of the forces at work on  the Earth. Hey I also found this great website where you can measure objects. You should check it out! Also check out this picture it describes what I'm talking about... well it describes how the weight changes but the mass does not.     http://www.astronomynotes.com/gravappl/weight.gif Thanks for checking out my rockin' blog! TTFN (Ta Ta For Now) Article posted May 1, 2009 at 05:33 PM • comment • Reads 177 • see all articles