Here's a breakdown:
* Motion: Refers to an object's position changing over time.
* Change in Motion: This could involve a change in speed, direction, or both.
* Unit of Time: Usually measured in seconds (s).
Therefore, acceleration is the rate at which an object's velocity changes over time.
Key Points:
* Velocity: A combination of speed and direction.
* Acceleration can be:
* Positive: Speeding up.
* Negative: Slowing down (also called deceleration).
* Zero: Constant velocity (no change in speed or direction).
Formula for Acceleration:
```
Acceleration (a) = (Change in Velocity (Δv)) / (Change in Time (Δt))
```
Let me know if you'd like more details about acceleration!