Compare the motion of two geese. Which goose was moving at a lower speed?
a goose that moved 215miles in 5hours a goose that moved 375miles in 5hours
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 mile.
Time tells you how long the object has spent moving. One unit used to measure time is the hour.
Think about two objects moving for the same amount of time. The object that is moving slower will go a shorter distance in that time. It is moving at a lower speed.
Look at the distance each goose moved and the time it took to move that distance.
One goose moved 215 miles in 5 hours.
The other goose moved 375 miles in 5 hours.
Notice that each goose spent the same amount of time moving. The goose that moved 215 miles moved a shorter distance in that time. So, that goose must have moved at a lower speed.