Motion
By:Thi Elaine Frantzis
What is speed?
Speed is a measure of the change in an object's position per unit time. Speed is a how fast you are into your movement. When you are running you have speed. A car has speed.
Can you stay fast?
Over the same distance, a longer time of travel means a slower speed. This is because of if you start really fast, the friction will slow you down.