Question

multiple choice 1 point what is speed? a measurement with just size associated with it a measurement that has both magnitude and a direction any measured amount how fast velocity changes a measure of how fast distance is covered (ratio of quantity to time)

Explanation:

• Analyze each option:
• "a measurement with just size associated with it" describes a scalar, but speed's definition is more specific about distance over time, so this is not the best.
• "a measurement that has both magnitude and a direction" is for vectors (like velocity), speed is scalar, so incorrect.
• "any measured amount" is too vague and not specific to speed.
• "how fast velocity changes" is acceleration, not speed.
• "a measure of how fast distance is covered (ratio of quantity to time)" matches the definition of speed (speed = distance/time, a ratio of distance (quantity) to time).

Answer:

The correct option is: a measure of how fast distance is covered (ratio of quantity to time)