Forces, Motion, and Energy Web Sites
Baseball travel
Does a baseball travel further in Denver than at Sea Level?
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The Treb Challenge
Remember the trebuchet--the original siege machine?  It's back and ready to put your physics muscles to the test.  Custom build your TREB to take on three separate challenges:  distance, accuracy, and power.
Newton's Laws
Excellent overview of Newton's Laws.
Newton's Laws
Physics Classroom
Vectors and Projectiles
Funderstanding Roller Coaster
It is your mission to design the coaster so that you can achieve maximum thrills and chills without crashing or flying off the track.
Newton's Law's of Motion
Isaac Newton' s Laws of Motion
Excellent overview of Newton's Laws.
Excellent overview of Newton's Laws.
Forces
NBC LEARN
Newton's Laws of Motion and Car Physics