Question

an object's acceleration is the rate at which its changes
A. mass
B. speed
C. direction
D.distance

Answers

GPT-4o mini
An object's acceleration is the rate at which its **B. speed** changes.

However, it is also important to note that acceleration can refer to changes in both speed and direction. In a broader context, since acceleration includes both changes in speed and direction, one might consider that **C. direction** can also be relevant depending on the context (such as in circular motion). But in terms of the most common interpretation, speed is generally the correct answer.