Acceleration is _______________.(1 point)
An object’s direction’s rate of change
An object’s velocity’s rate of change
An object’s speed in a specific direction
An object’s speed when its motion is constant
An object's velocity's rate of change.
Acceleration is the rate of change of an object's velocity. Therefore, the correct answer is "An object’s velocity’s rate of change."
To determine the correct answer, we need to understand the concept of acceleration. Acceleration is defined as the rate of change of an object's velocity. Velocity, on the other hand, takes both the speed and direction of an object into account. So, we can say that acceleration is the rate at which an object's velocity changes.
Looking at the given options, the first option describes acceleration as the rate of change of an object's direction, which is not accurate. While an object's direction may change, acceleration specifically refers to changes in velocity.
The second option states that acceleration is the rate of change of an object's velocity, which is correct. This option aligns with the definition we discussed earlier.
The third option suggests that acceleration represents an object's speed in a specific direction. While velocity includes both speed and direction, acceleration focuses on changes in velocity, not just a specific direction.
Lastly, the fourth option claims that acceleration is the speed of an object when its motion is constant. This statement is incorrect because acceleration measures changes in velocity, not a constant motion.
Based on the explanations provided, the correct option for the definition of acceleration is:
- An object’s velocity’s rate of change.