Friday, March 27, 2009

motion cards

Motion: a change in position relative to some fixed object.

Reference Point: the fixed object used to determine another object’s motion.

Distance: The length between two points.

Speed: The distance an object travels in one unit of time

Formula for Speed: Distance / Time ( / means divided by )

Velocity: an object’s speed in a given direction.

Acceleration: the change in velocity over time. Three examples are : an increase in speed
a decrease in speed, or a change in direction

Formula for Acceleration : Final Velocity – Initial Velocity / Time for change