Compare the motion of three blue jays. Which blue jay was moving at the highest speed?
a blue jay that moved 385kilometers south in 10hours a blue jay that moved 310kilometers south in 10hours a blue jay that moved 320kilometers north in 10hours
An object's speed tells you how fast the object is moving. Speed depends on both distance and time.
Distance tells you how far the object has moved. One unit used to measure distance is the kilometer.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about objects moving for the same amount of time. The object that is moving the fastest will go the farthest distance in that time. It is moving at the highest speed.
Look at the distance each blue jay moved and the time it took to move that distance. The direction each blue jay moved does not affect its speed.
Notice that each blue jay moved for 10 hours. The blue jay that moved 385 kilometers moved the farthest distance in that time. So, that blue jay must have moved at the highest speed.