* A change in speed: The object is moving faster or slower.
* A change in direction: The object is changing its path of motion, even if its speed remains constant.
* A change in both speed and direction: The object is both speeding up or slowing down and changing its direction.
Examples:
* A car speeding up from a stop sign.
* A ball thrown in the air slowing down as it rises and speeding up as it falls.
* A car turning a corner at a constant speed.
Key Points:
* Acceleration is a vector quantity, meaning it has both magnitude (how much) and direction.
* The unit of acceleration is meters per second squared (m/s²).
* Even if an object is moving at a constant speed, it can still be accelerating if it is changing direction.
