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Motion Notes
Frame of Reference
·A system of objects that are not moving with respect to one another.
·Relative Motion is movement in relationship to a Frame of Reference.
http://www.youtube.com/watch?v=qQVDAMzo4mE
http://www.youtube.com/watch?v=7VqOYvoEMnQ
http://www.youtube.com/watch?v=FaEZZ43WrTQ
Distance & Displacement
·Distance is the length of the path between two points.
·Displacement is the straight line distance between two points - shows both the distance & direction from the starting point to the ending point.
http://www.youtube.com/watch?v=atAgzYH6Sj0
http://www.learnerstv.com/animation/animation.php?ani=%2026&cat=physics
i
Speed
·Speed = Distance/Time
·Units: m/s, mph, km/hr
Speed
Velocity
·Velocity = Distance/Time in a given direction
·Units: m/s North, mph South, km/hr NE
http://www.youtube.com/watch?v=DRb5PSxJerM&feature=related
Speed and Velocity by They Might Be Giants
Acceleration
·a = Final Velocity - Initial Velocity
Time
·Units: m/s2, mphps , km/hr/min
Deceleration
·d = Initial Velocity - Final Velocity
Time
·Units: m/s2, mphps , km/hr/min