Which example below provides a complete scientific description of an object in motion?
A. The marble changed position quickly.
B. The car traveled north.
C. The marble moved 30 cm north in 6 seconds.
D. The ball rolled 20 cm in 5 seconds.
C - it provides both speed and direction
Thank you so much
I think its C hope I'm right
C is the correct answer ;)
The example that provides a complete scientific description of an object in motion is option C: "The marble moved 30 cm north in 6 seconds."
To determine the correct answer, we need to understand what a complete scientific description of an object in motion entails. A complete scientific description includes several key elements: the object or subject in motion, the direction of its motion, the distance it traveled, and the time it took to cover that distance.
Option A, "The marble changed position quickly," only mentions that the marble changed position but doesn't provide any specific details about its motion, direction, distance, or time. So, it is not a complete scientific description.
Option B, "The car traveled north," provides the direction of motion but doesn't mention any details about the distance or time it took. Thus, it is also not a complete scientific description.
Option D, "The ball rolled 20 cm in 5 seconds," provides specific information about distance and time, but it doesn't mention the direction of the ball's motion. Therefore, it is not a complete scientific description either.
Option C, "The marble moved 30 cm north in 6 seconds," includes all the necessary elements of a complete scientific description. It specifies the object (marble), the distance it traveled (30 cm), the direction of its motion (north), and the time it took (6 seconds).
Hence, option C is the correct answer.