* Motion: Means an object is changing its position over time.

* Acceleration: Means an object is changing its *velocity* over time. Velocity includes both speed and direction.

Example:

Imagine a car driving down a straight highway at a constant speed of 60 miles per hour.

* Motion: The car is definitely in motion, as it's changing its position.

* Acceleration: The car is *not* accelerating. Its speed is constant, and it's not changing direction.

Key Point: Acceleration is about *changes* in velocity, not just the velocity itself.

Other Examples:

* An object moving in a circle at a constant speed: It's in motion, but constantly changing direction, so it has acceleration.

* A ball thrown straight up in the air: It has acceleration due to gravity, even at its highest point where its velocity is momentarily zero.

Let me know if you have any more questions about motion or acceleration!