* Change in Position: This means the object is moving from one location to another.

* Over Time: Motion happens within a certain timeframe. It's not just about being in a different place, but how long it takes to get there.

Here's a simple example: A car driving down the street is in motion. It's changing its position as time passes.

Key Points:

* Motion is relative: Something might be in motion relative to one object, but not to another. For example, a passenger on a train is in motion relative to the ground, but not relative to the train.

* Motion can be described: We can describe motion using concepts like speed, velocity, and acceleration.

* Forces cause motion: A push or pull on an object (a force) can cause it to start, stop, or change direction.

Understanding motion is fundamental in physics and many other scientific fields. It helps us understand everything from the movement of planets to the flow of fluids.