Question

which example provides a complete scientific description of an object in motion?
o the car traveled north.
o the marble changed position quickly.
o the ball rolled 20 cm in 5 seconds.
o the marble moved 30 cm north in 6 seconds.

Explanation:

A complete scientific description of an object in motion should include distance, direction, and time. The first option only has direction, the second has no specific distance or direction, the third has distance and time but no direction. The fourth option has distance (30 cm), direction (north), and time (6 seconds).

Answer:

The marble moved 30 cm north in 6 seconds.