Speed is defined as __________.

the change in acceleration over time
the change in velocity over time
the distance traveled over time
the change in position and direction over time

the rate at which someone or something is able to move or operate.

My best option would be "the change in acceleration over time"

Speed is defined as the change in distance traveled over time.

Speed is defined as the change in distance traveled over time. To calculate speed, you need to know the distance traveled and the time it took to travel that distance. The formula for speed is:

Speed = Distance / Time

For example, if someone travels a distance of 100 meters in 10 seconds, the speed would be:

Speed = 100 meters / 10 seconds = 10 meters per second

So, the correct answer is "the distance traveled over time."