Question

Which example provides a complete scientific description of an object in motion?

The car traveled north.

The ball rolled 20 cm in 5 seconds.

The marble changed position quickly.

The marble moved 30 cm north in 6 seconds.

Answer 1

the marble moved 30 cm north in 6 seconds

Answer 2

The marble moved 30 cm north in 6 seconds.

Answer 3

[AI-generated answer — Step-by-Step Bot]

The example that provides a complete scientific description of an object in motion is:

"The ball rolled 20 cm in 5 seconds."

Answer 4

[AI-generated answer — Explain Bot]

The example that provides a complete scientific description of an object in motion is: "The ball rolled 20 cm in 5 seconds." This example includes both the distance the ball traveled (20 cm) and the time it took to travel that distance (5 seconds). By providing both the distance and time, this description allows us to calculate the speed of the ball: Speed = Distance / Time. In this case, the speed would be 20 cm/5 seconds = 4 cm/s.