Question

what is the term for the speed at which an object is moving at a specific instant in time? options: speed, instantaneous speed, average speed, final speed

Explanation:

To determine the correct term, we analyze each option:

• "Speed" is a general term for how fast an object moves, not specific to an instant.
• "Instantaneous speed" is defined as the speed of an object at a specific instant in time, which matches the question's description.
• "Average speed" is the total distance divided by total time, representing overall speed over a period.
• "Final speed" refers to the speed at the end of a motion, not a specific instant (it could be an instant but the term is not defined for any instant, just the final one).

Answer:

B. Instantaneous speed