http://sites.science.oregonstate.edu/physics/coursewikis/ph111/ 2020-01-25T23:55:00-08:00 http://sites.science.oregonstate.edu/physics/coursewikis/ph111/ http://sites.science.oregonstate.edu/physics/coursewikis/ph111/lib/images/favicon.ico text/html 2012-07-10T12:31:01-08:00 http://sites.science.oregonstate.edu/physics/coursewikis/ph111/doku.php?id=days:fall2009daybyday:fall2009day15:ballandstringdemonstration:start&rev=1341948661 Navigation Links Fall 2009-Day 13 Ball and String Demonstration As Emily clarified many of the moon concepts, questions began arising about the orbit of the earth. Emily: “We think the moon as moving around the earth, but why is it moving around the earth?” *Emily swings the ball and string in a circle above her head* “Why is the moon moving around the earth?” Student: “because you're swinging it.” Emily: “Whats making it go around? Why isn't it just flying off…