Edutopia - September 2007 - (Page 21)

CLASS VROOM Find links to Web sites about the science of skateboarding and how a curveball works. www.edutopia.org/motorcycle-physics FIRST LAW OF MOTION Newton stated that a body in motion persists in a straight line unless compelled to change. THERMODYNAMICS Slowing the motorcycle from high speed for tight turns causes heat buildup in its brakes and can diminish effectiveness. CENTRIFUGAL FORCE In fast turns, lean angle and forward motion counteract the powerful pull toward the outer edge of the track. FRICTION A special compound in these rounded tires allows traction on asphalt even at lean angles of 60 degrees and more. PHOTO COURTESY OF FIAT YAMAHA TEAM SEPTEMBER 2007 EDUTOPIA 21 http://www.edutopia.org/motorcycle-physics Table of Contents for the Digital Edition of Edutopia - September 2007ContentsEditor’s NoteLettersDispatchesSage AdviceAsk EllenHead of ClassNorthern LightsDesignWhat's NextNCLBMerit PayAlternative SchedulesOnline LearningElection-Year PoliticsMandarinScienceSocial NetworkingVocational SchoolsArtsLittle Shop of PhysicsHeart & SoulPop Quiz: Brian WilliamsEdutopia - September 2007Edutopia - September 2007 - (Page Cover1)Edutopia - September 2007 - (Page Cover2)Edutopia - September 2007 - Contents (Page 1)Edutopia - September 2007 - Contents (Page 2)Edutopia - September 2007 - Contents (Page 3)Edutopia - September 2007 - Contents (Page 4)Edutopia - September 2007 - Editor’s Note (Page 5)Edutopia - September 2007 - Editor’s Note (Page 6)Edutopia - September 2007 - Letters (Page 7)Edutopia - September 2007 - Letters (Page 8)Edutopia - September 2007 - Letters (Page 9)Edutopia - September 2007 - Dispatches (Page 10)Edutopia - September 2007 - Dispatches (Page 11)Edutopia - September 2007 - Sage Advice (Page 12)Edutopia - September 2007 - Sage Advice (Page 13)Edutopia - September 2007 - Ask Ellen (Page 14)Edutopia - September 2007 - Ask Ellen (Page 15)Edutopia - September 2007 - Ask Ellen (Page 16)Edutopia - September 2007 - Head of Class (Page 17)Edutopia - September 2007 - Head of Class (Page 18)Edutopia - September 2007 - Head of Class (Page 19)Edutopia - September 2007 - Head of Class (Page 20)Edutopia - September 2007 - Head of Class (Page 21)Edutopia - September 2007 - Head of Class (Page 22)Edutopia - September 2007 - Head of Class (Page 23)Edutopia - September 2007 - Head of Class (Page 24)Edutopia - September 2007 - Head of Class (Page 25)Edutopia - September 2007 - Northern Lights (Page 26)Edutopia - September 2007 - Northern Lights (Page 27)Edutopia - September 2007 - Northern Lights (Page 28)Edutopia - September 2007 - Northern Lights (Page 29)Edutopia - September 2007 - Northern Lights (Page 30)Edutopia - September 2007 - Northern Lights (Page 31)Edutopia - September 2007 - Design (Page 32)Edutopia - September 2007 - Design (Page 33)Edutopia - September 2007 - Design (Page 34)Edutopia - September 2007 - Design (Page 35)Edutopia - September 2007 - What's Next (Page 36)Edutopia - September 2007 - NCLB (Page 37)Edutopia - September 2007 - Merit Pay (Page 38)Edutopia - September 2007 - Alternative Schedules (Page 39)Edutopia - September 2007 - Online Learning (Page 40)Edutopia - September 2007 - Online Learning (Page 41)Edutopia - September 2007 - Election-Year Politics (Page 42)Edutopia - September 2007 - Mandarin (Page 43)Edutopia - September 2007 - Science (Page 44)Edutopia - September 2007 - Science (Page 45)Edutopia - September 2007 - Social Networking (Page 46)Edutopia - September 2007 - Social Networking (Page 47)Edutopia - September 2007 - Vocational Schools (Page 48)Edutopia - September 2007 - Arts (Page 49)Edutopia - September 2007 - Little Shop of Physics (Page 50)Edutopia - September 2007 - Little Shop of Physics (Page 51)Edutopia - September 2007 - Little Shop of Physics (Page 52)Edutopia - September 2007 - Little Shop of Physics (Page 53)Edutopia - September 2007 - Little Shop of Physics (Page 54)Edutopia - September 2007 - Little Shop of Physics (Page 55)Edutopia - September 2007 - Heart & Soul (Page 56)Edutopia - September 2007 - Heart & Soul (Page 57)Edutopia - September 2007 - Heart & Soul (Page 58)Edutopia - September 2007 - Heart & Soul (Page 59)Edutopia - September 2007 - Pop Quiz: Brian Williams (Page 60)Edutopia - September 2007 - Pop Quiz: Brian Williams (Page Cover3)Edutopia - September 2007 - Pop Quiz: Brian Williams (Page Cover4)http://www.nxtbookMEDIA.com

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