Compare the motion of two speedboats. Which speedboat was moving at a higher speed?
a speedboat that moved 180miles in 5hours a speedboat that moved 285miles 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 faster will go a farther distance in that time. It is moving at a higher speed.
Look at the distance each speedboat moved and the time it took to move that distance.
One speedboat moved 285 miles in 5 hours.
The other speedboat moved 180 miles in 5 hours.
Notice that each speedboat spent the same amount of time moving. The speedboat that moved 285 miles moved a farther distance in that time. So, that speedboat must have moved at a higher speed.