5005 Praxis Practice Test Practice Question
In an experiment, a student observes an object as it travels in one direction along a straight path. Which TWO of the following measurements does the student need to calculate the average speed of the object?
Correct Answer: B,C
Rationale: To calculate average speed, the essential measurements are distance traveled and elapsed time. Distance (Option B) is crucial as it indicates how far the object has moved, while elapsed time (Option C) shows how long it took to cover that distance.
Option A, the object's mass, is irrelevant for speed calculations, as speed does not depend on mass. Option D, environmental temperature, also does not affect the calculation of speed in this context. Thus, only distance and time are necessary for determining average speed.
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