In this presentation, we will discuss the similartities & differences between speed & velocity

Speed is a scalar quantity. Remember, in Physics scalar quantities have magnitude which is another word for size.
An example of a speed is 60 miles per hour, 15 meters/second. Both of these measurements have a size or magnitude which is the number and a unit.

Link to Video: http://www.youtube.com/v/tzauw22lt5E